Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions 7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the vulnerability.

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:5498 advisory.

  - libsolv: heap-based buffer overflow in testcase_read() in src/testcase.c (CVE-2021-3200)

  - foreman: Authenticate remote code execution through Sendmail configuration (CVE-2021-3584)

  - Satellite: Allow unintended SCA certificate to authenticate Candlepin (CVE-2021-4142)

  - netty: Information disclosure via the local system temporary directory (CVE-2021-21290)

  - netty: possible request smuggling in HTTP/2 due missing validation (CVE-2021-21295)

  - netty: Request smuggling via content-length header (CVE-2021-21409)

  - sidekiq: XSS via the queue name of the live-poll feature (CVE-2021-30151)

  - python-sqlparse: ReDoS via regular expression in StripComments filter (CVE-2021-32839)

  - libsolv: heap-based buffer overflow in pool_installable() in src/repo.h (CVE-2021-33928)

  - libsolv: heap-based buffer overflow in pool_disabled_solvable() in src/repo.h (CVE-2021-33929)

  - libsolv: heap-based buffer overflow in pool_installable_whatprovides() in src/repo.h (CVE-2021-33930)

  - libsolv: heap-based buffer overflow in prune_to_recommended() in src/policy.c (CVE-2021-33938)

  - rubygem-puma: Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') in puma     (CVE-2021-41136)

  - logback: remote code execution through JNDI call from within its configuration file (CVE-2021-42550)

  - netty: control chars in header names may lead to HTTP request smuggling (CVE-2021-43797)

  - python-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass through (CVE-2021-43818)

  - django: potential bypass of an upstream access control based on URL paths (CVE-2021-44420)

  - libsolv: heap-overflows in resolve_dependencies function (CVE-2021-44568)

  - django: Denial-of-service possibility in UserAttributeSimilarityValidator (CVE-2021-45115)

  - django: Potential information disclosure in dictsort template filter (CVE-2021-45116)

  - django: Potential directory-traversal via Storage.save() (CVE-2021-45452)

  - django: Possible XSS via '{% debug %}' template tag (CVE-2022-22818)

  - rubygem-actionpack: information leak between requests (CVE-2022-23633)

  - rubygem-puma: rubygem-rails: information leak between requests (CVE-2022-23634)

  - django: Denial-of-service possibility in file uploads (CVE-2022-23833)

  - sidekiq: WebUI Denial of Service caused by number of days on graph (CVE-2022-23837)

  - Django: SQL injection in QuerySet.annotate(),aggregate() and extra() (CVE-2022-28346)

  - Django: SQL injection via QuerySet.explain(options) on PostgreSQL (CVE-2022-28347)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6682-1 advisory.

  - In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid     transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4. (CVE-2020-11076)

  - In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request through a proxy, causing the     proxy to send a response back to another unknown client. If the proxy uses persistent connections and the     client adds another request in via HTTP pipelining, the proxy may mistake it as the first request's body.
    Puma, however, would see it as two requests, and when processing the second request, send back a response     that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another     request for a different client, the second response from the first client will be sent to the second     client. This is a similar but different vulnerability from CVE-2020-11076. The problem has been fixed in     Puma 3.12.6 and Puma 4.3.5. (CVE-2020-11077)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

  - Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using     Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230     standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow     requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and     4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of     Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
    (CVE-2022-24790)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to versions 6.3.1 and 5.6.7, puma exhibited     incorrect behavior when parsing chunked transfer encoding bodies and zero-length Content-Length headers in     a way that allowed HTTP request smuggling. Severity of this issue is highly dependent on the nature of the     web site using puma is. This could be caused by either incorrect parsing of trailing fields in chunked     transfer encoding bodies or by parsing of blank/zero-length Content-Length headers. Both issues have been     addressed and this vulnerability has been fixed in versions 6.3.1 and 5.6.7. Users are advised to upgrade.
    There are no known workarounds for this vulnerability. (CVE-2023-40175)

  - Puma is a web server for Ruby/Rack applications built for parallelism. Prior to version 6.4.2, puma     exhibited incorrect behavior when parsing chunked transfer encoding bodies in a way that allowed HTTP     request smuggling. Fixed versions limits the size of chunk extensions. Without this limit, an attacker     could cause unbounded resource (CPU, network bandwidth) consumption. This vulnerability has been fixed in     versions 6.4.2 and 5.6.8. (CVE-2024-21647)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2022:5498 advisory.

  - Netty is an open-source, asynchronous event-driven network application framework for rapid development of     maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a     vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are     used local information disclosure can occur via the local system temporary directory if temporary storing     uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user.
    As such, writing to this directory using APIs that do not explicitly set the file/directory permissions     can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The     method File.createTempFile on unix-like systems creates a random file, but, by default will create this     file with the permissions -rw-r--r--. Thus, if sensitive information is written to this file, other     local users can read this information. This is the case in netty's AbstractDiskHttpData is vulnerable.
    This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own java.io.tmpdir     when you start the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something     that is only readable by the current user. (CVE-2021-21290)

  - Netty is an open-source, asynchronous event-driven network application framework for rapid development of     maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before     version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header     is present in the original HTTP/2 request, the field is not validated by `Http2MultiplexHandler` as it is     propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request     comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (`HttpRequest`,     `HttpContent`, etc.) via `Http2StreamFrameToHttpObjectCodec `and then sent up to the child channel's     pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy     case, users may assume the content-length is validated somehow, which is not the case. If the request is     forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs     to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to     HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of     this is true: `HTTP2MultiplexCodec` or `Http2FrameCodec` is used, `Http2StreamFrameToHttpObjectCodec` is     used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This     has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by     implementing a custom `ChannelInboundHandler` that is put in the `ChannelPipeline` behind     `Http2StreamFrameToHttpObjectCodec`. (CVE-2021-21295)

  - Netty is an open-source, asynchronous event-driven network application framework for rapid development of     maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before     version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is     not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to     true. This could lead to request smuggling if the request is proxied to a remote peer and translated to     HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case.
    This was fixed as part of 4.1.61.Final. (CVE-2021-21409)

  - Sidekiq through 5.1.3 and 6.x through 6.2.0 allows XSS via the queue name of the live-poll feature when     Internet Explorer is used. (CVE-2021-30151)

  - Buffer overflow vulnerability in libsolv 2020-12-13 via the Solver * testcase_read(Pool *pool, FILE *fp,     const char *testcase, Queue *job, char **resultp, int *resultflagsp function at src/testcase.c: line 2334,     which could cause a denial of service (CVE-2021-3200)

  - sqlparse is a non-validating SQL parser module for Python. In sqlparse versions 0.4.0 and 0.4.1 there is a     regular Expression Denial of Service in sqlparse vulnerability. The regular expression may cause     exponential backtracking on strings containing many repetitions of '\r\n' in SQL comments. Only the     formatting feature that removes comments from SQL statements is affected by this regular expression. As a     workaround don't use the sqlformat.format function with keyword strip_comments=True or the --strip-     comments command line flag when using the sqlformat command line tool. The issues has been fixed in     sqlparse 0.4.2. (CVE-2021-32839)

  - Buffer overflow vulnerability in function pool_installable in src/repo.h in libsolv before 0.7.17 allows     attackers to cause a Denial of Service. (CVE-2021-33928)

  - Buffer overflow vulnerability in function pool_disabled_solvable in src/repo.h in libsolv before 0.7.17     allows attackers to cause a Denial of Service. (CVE-2021-33929)

  - Buffer overflow vulnerability in function pool_installable_whatprovides in src/repo.h in libsolv before     0.7.17 allows attackers to cause a Denial of Service. (CVE-2021-33930)

  - Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17     allows attackers to cause a Denial of Service. (CVE-2021-33938)

  - A server side remote code execution vulnerability was found in Foreman project. A authenticated attacker     could use Sendmail configuration options to overwrite the defaults and perform command injection. The     highest threat from this vulnerability is to confidentiality, integrity and availability of system. Fixed     releases are 2.4.1, 2.5.1, 3.0.0. (CVE-2021-3584)

  - Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using `puma` with     a proxy which forwards HTTP header values which contain the LF character could allow HTTP request     smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to     another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is     Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via     HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two     requests, and when processing the second request, send back a response that the proxy does not expect. If     the proxy has reused the persistent connection to Puma to send another request for a different client, the     second response from the first client will be sent to the second client. This vulnerability was patched in     Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with `puma`. (CVE-2021-41136)

  - The Candlepin component of Red Hat Satellite was affected by an improper authentication flaw. Few factors     could allow an attacker to use the SCA (simple content access) certificate for authentication with     Candlepin. (CVE-2021-4142)

  - In logback version 1.2.7 and prior versions, an attacker with the required privileges to edit     configurations files could craft a malicious configuration allowing to execute arbitrary code loaded from     LDAP servers. (CVE-2021-42550)

  - Netty is an asynchronous event-driven network application framework for rapid development of maintainable     high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when     they are present at the beginning / end of the header name. It should instead fail fast as these are not     allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause     netty to sanitize header names before it forward these to another remote system when used as proxy. This     remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users     should upgrade to version 4.1.71.Final. (CVE-2021-43797)

  - lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML     Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG     files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should     upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available. (CVE-2021-43818)

  - In Django 2.2 before 2.2.25, 3.1 before 3.1.14, and 3.2 before 3.2.10, HTTP requests for URLs with     trailing newlines could bypass upstream access control based on URL paths. (CVE-2021-44420)

  - Two heap-overflow vulnerabilities exist in openSUSE/libsolv libsolv through 13 Dec 2020 in the decisionmap     variable via the resolve_dependencies function at src/solver.c (line 1940 & line 1995), which could cause     a remote Denial of Service. (CVE-2021-44568)

  - An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1.
    UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was     artificially large in relation to the comparison values. In a situation where access to user registration     was unrestricted, this provided a potential vector for a denial-of-service attack. (CVE-2021-45115)

  - An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. Due to     leveraging the Django Template Language's variable resolution logic, the dictsort template filter was     potentially vulnerable to information disclosure, or an unintended method call, if passed a suitably     crafted key. (CVE-2021-45116)

  - Storage.save in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1 allows directory     traversal if crafted filenames are directly passed to it. (CVE-2021-45452)

  - The {% debug %} template tag in Django 2.2 before 2.2.27, 3.2 before 3.2.12, and 4.0 before 4.0.2 does not     properly encode the current context. This may lead to XSS. (CVE-2022-22818)

  - Action Pack is a framework for handling and responding to web requests. Under certain circumstances     response bodies will not be closed. In the event a response is *not* notified of a `close`,     `ActionDispatch::Executor` will not know to reset thread local state for the next request. This can lead     to data being leaked to subsequent requests.This has been fixed in Rails 7.0.2.1, 6.1.4.5, 6.0.4.5, and     5.2.6.1. Upgrading is highly recommended, but to work around this problem a middleware described in GHSA-     wh98-p28r-vrc9 can be used. (CVE-2022-23633)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

  - An issue was discovered in MultiPartParser in Django 2.2 before 2.2.27, 3.2 before 3.2.12, and 4.0 before     4.0.2. Passing certain inputs to multipart forms could result in an infinite loop when parsing files.
    (CVE-2022-23833)

  - In api.rb in Sidekiq before 5.2.10 and 6.4.0, there is no limit on the number of days when requesting     stats for the graph. This overloads the system, affecting the Web UI, and makes it unavailable to users.
    (CVE-2022-23837)

  - An issue was discovered in Django 2.2 before 2.2.28, 3.2 before 3.2.13, and 4.0 before 4.0.4.
    QuerySet.annotate(), aggregate(), and extra() methods are subject to SQL injection in column aliases via a     crafted dictionary (with dictionary expansion) as the passed **kwargs. (CVE-2022-28346)

  - A SQL injection issue was discovered in QuerySet.explain() in Django 2.2 before 2.2.28, 3.2 before 3.2.13,     and 4.0 before 4.0.4. This occurs by passing a crafted dictionary (with dictionary expansion) as the
    **options argument, and placing the injection payload in an option name. (CVE-2022-28347)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-051 advisory.

  - Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was     incomplete. The original fix only protected existing connections that had already been accepted from     having their requests starved by greedy persistent-connections saturating all threads in the same process.
    However, new connections may still be starved by greedy persistent-connections saturating all threads in     all processes in the cluster. A `puma` server which received more concurrent `keep-alive` connections than     the server had threads in its threadpool would service only a subset of connections, denying service to     the unserved connections. This problem has been fixed in `puma` 4.3.8 and 5.3.1. Setting `queue_requests     false` also fixes the issue. This is not advised when using `puma` without a reverse proxy, such as     `nginx` or `apache`, because you will open yourself to slow client attacks (e.g. slowloris). The fix is     very small and a git patch is available for those using unsupported versions of Puma. (CVE-2021-29509)

  - Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using `puma` with     a proxy which forwards HTTP header values which contain the LF character could allow HTTP request     smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to     another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is     Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via     HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two     requests, and when processing the second request, send back a response that the proxy does not expect. If     the proxy has reused the persistent connection to Puma to send another request for a different client, the     second response from the first client will be sent to the second client. This vulnerability was patched in     Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with `puma`. (CVE-2021-41136)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

  - Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using     Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230     standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow     requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and     4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of     Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
    (CVE-2022-24790)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-3083 advisory.

  - Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was     incomplete. The original fix only protected existing connections that had already been accepted from     having their requests starved by greedy persistent-connections saturating all threads in the same process.
    However, new connections may still be starved by greedy persistent-connections saturating all threads in     all processes in the cluster. A `puma` server which received more concurrent `keep-alive` connections than     the server had threads in its threadpool would service only a subset of connections, denying service to     the unserved connections. This problem has been fixed in `puma` 4.3.8 and 5.3.1. Setting `queue_requests     false` also fixes the issue. This is not advised when using `puma` without a reverse proxy, such as     `nginx` or `apache`, because you will open yourself to slow client attacks (e.g. slowloris). The fix is     very small and a git patch is available for those using unsupported versions of Puma. (CVE-2021-29509)

  - Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using `puma` with     a proxy which forwards HTTP header values which contain the LF character could allow HTTP request     smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to     another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is     Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via     HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two     requests, and when processing the second request, send back a response that the proxy does not expect. If     the proxy has reused the persistent connection to Puma to send another request for a different client, the     second response from the first client will be sent to the second client. This vulnerability was patched in     Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with `puma`. (CVE-2021-41136)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

  - Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using     Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230     standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow     requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and     4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of     Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
    (CVE-2022-24790)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202208-28 (Puma: Multiple Vulnerabilities)

  - Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was     incomplete. The original fix only protected existing connections that had already been accepted from     having their requests starved by greedy persistent-connections saturating all threads in the same process.
    However, new connections may still be starved by greedy persistent-connections saturating all threads in     all processes in the cluster. A `puma` server which received more concurrent `keep-alive` connections than     the server had threads in its threadpool would service only a subset of connections, denying service to     the unserved connections. This problem has been fixed in `puma` 4.3.8 and 5.3.1. Setting `queue_requests     false` also fixes the issue. This is not advised when using `puma` without a reverse proxy, such as     `nginx` or `apache`, because you will open yourself to slow client attacks (e.g. slowloris). The fix is     very small and a git patch is available for those using unsupported versions of Puma. (CVE-2021-29509)

  - Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using `puma` with     a proxy which forwards HTTP header values which contain the LF character could allow HTTP request     smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to     another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is     Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via     HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two     requests, and when processing the second request, send back a response that the proxy does not expect. If     the proxy has reused the persistent connection to Puma to send another request for a different client, the     second response from the first client will be sent to the second client. This vulnerability was patched in     Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with `puma`. (CVE-2021-41136)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

  - Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using     Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230     standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow     requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and     4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of     Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
    (CVE-2022-24790)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-3023 advisory.

  - In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client could use keepalive requests to     monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are     opened than there are threads available, additional connections will wait permanently if the attacker     sends requests frequently enough. This vulnerability is patched in Puma 4.3.1 and 3.12.2. (CVE-2019-16770)

  - In Puma (RubyGem) before 4.3.2 and before 3.12.3, if an application using Puma allows untrusted input in a     response header, an attacker can use newline characters (i.e. `CR`, `LF` or`/r`, `/n`) to end the header     and inject malicious content, such as additional headers or an entirely new response body. This     vulnerability is known as HTTP Response Splitting. While not an attack in itself, response splitting is a     vector for several other attacks, such as cross-site scripting (XSS). This is related to CVE-2019-16254,     which fixed this vulnerability for the WEBrick Ruby web server. This has been fixed in versions 4.3.2 and     3.12.3 by checking all headers for line endings and rejecting headers with those characters.
    (CVE-2020-5247)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dsa-5146 advisory.

  - Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using `puma` with     a proxy which forwards HTTP header values which contain the LF character could allow HTTP request     smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to     another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is     Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via     HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two     requests, and when processing the second request, send back a response that the proxy does not expect. If     the proxy has reused the persistent connection to Puma to send another request for a different client, the     second response from the first client will be sent to the second client. This vulnerability was patched in     Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with `puma`. (CVE-2021-41136)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

  - Puma is a simple, fast, multi-threaded, parallel HTTP 1.1 server for Ruby/Rack applications. When using     Puma behind a proxy that does not properly validate that the incoming HTTP request matches the RFC7230     standard, Puma and the frontend proxy may disagree on where a request starts and ends. This would allow     requests to be smuggled via the front-end proxy to Puma. The vulnerability has been fixed in 5.6.4 and     4.3.12. Users are advised to upgrade as soon as possible. Workaround: when deploying a proxy in front of     Puma, turning on any and all functionality to make sure that the request matches the RFC7230 standard.
    (CVE-2022-24790)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1515-1 advisory.

  - Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was     incomplete. The original fix only protected existing connections that had already been accepted from     having their requests starved by greedy persistent-connections saturating all threads in the same process.
    However, new connections may still be starved by greedy persistent-connections saturating all threads in     all processes in the cluster. A `puma` server which received more concurrent `keep-alive` connections than     the server had threads in its threadpool would service only a subset of connections, denying service to     the unserved connections. This problem has been fixed in `puma` 4.3.8 and 5.3.1. Setting `queue_requests     false` also fixes the issue. This is not advised when using `puma` without a reverse proxy, such as     `nginx` or `apache`, because you will open yourself to slow client attacks (e.g. slowloris). The fix is     very small and a git patch is available for those using unsupported versions of Puma. (CVE-2021-29509)

  - Puma is a HTTP 1.1 server for Ruby/Rack applications. Prior to versions 5.5.1 and 4.3.9, using `puma` with     a proxy which forwards HTTP header values which contain the LF character could allow HTTP request     smugggling. A client could smuggle a request through a proxy, causing the proxy to send a response back to     another unknown client. The only proxy which has this behavior, as far as the Puma team is aware of, is     Apache Traffic Server. If the proxy uses persistent connections and the client adds another request in via     HTTP pipelining, the proxy may mistake it as the first request's body. Puma, however, would see it as two     requests, and when processing the second request, send back a response that the proxy does not expect. If     the proxy has reused the persistent connection to Puma to send another request for a different client, the     second response from the first client will be sent to the second client. This vulnerability was patched in     Puma 5.5.1 and 4.3.9. As a workaround, do not use Apache Traffic Server with `puma`. (CVE-2021-41136)

  - Puma is a Ruby/Rack web server built for parallelism. Prior to `puma` version `5.6.2`, `puma` may not     always call `close` on the response body. Rails, prior to version `7.0.2.2`, depended on the response body     being closed in order for its `CurrentAttributes` implementation to work correctly. The combination of     these two behaviors (Puma not closing the body + Rails' Executor implementation) causes information     leakage. This problem is fixed in Puma versions 5.6.2 and 4.3.11. This problem is fixed in Rails versions     7.02.2, 6.1.4.6, 6.0.4.6, and 5.2.6.2. Upgrading to a patched Rails _or_ Puma version fixes the     vulnerability. (CVE-2022-23634)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
194275	RHEL 7 / 8 : Satellite 6.11 Release (Moderate) (RHSA-2022:5498)	Nessus	Red Hat Local Security Checks	critical
191720	Ubuntu 20.04 LTS / 22.04 LTS : Puma vulnerabilities (USN-6682-1)	Nessus	Ubuntu Local Security Checks	critical
184590	Rocky Linux 8 : Satellite 6.11 Release (Moderate) (RLSA-2022:5498)	Nessus	Rocky Linux Local Security Checks	critical
164760	Amazon Linux 2022 : (ALAS2022-2022-051)	Nessus	Amazon Linux Local Security Checks	high
164646	Debian DLA-3083-1 : puma - LTS security update	Nessus	Debian Local Security Checks	high
164109	GLSA-202208-28 : Puma: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	high
161515	Debian DLA-3023-1 : puma - LTS security update	Nessus	Debian Local Security Checks	high
161493	Debian DSA-5146-1 : puma - security update	Nessus	Debian Local Security Checks	high
160523	SUSE SLES15 Security Update : rubygem-puma (SUSE-SU-2022:1515-1)	Nessus	SuSE Local Security Checks	medium

Detections

Analytics

CVE-2022-23634

medium

Tenable Plugins

critical

critical

critical

high

high

high

high

high

medium