In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered independent changes to the ModSecurity (C language) codebase.

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6370-1 advisory.

  - ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with     nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests.
    Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes     for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly     vulnerable: the affected versions include 2.8.0 through 2.9.4. (CVE-2021-42717)

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

  - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application     Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the     FILES_TMP_CONTENT collection. (CVE-2023-24021)

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

The remote Redhat Enterprise Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:4629 advisory.

  - apr: integer overflow/wraparound in apr_encode (CVE-2022-24963)

  - httpd: mod_proxy_ajp: Possible request smuggling (CVE-2022-36760)

  - httpd: mod_proxy: HTTP response splitting (CVE-2022-37436)

  - mod_security: incorrect parsing of HTTP multipart requests leads to web application firewall bypass     (CVE-2022-48279)

  - modsecurity: lacking the complete content in FILES_TMP_CONTENT leads to web application firewall bypass     (CVE-2023-24021)

  - httpd: mod_proxy_uwsgi HTTP response splitting (CVE-2023-27522)

  - curl: use after free in SSH sha256 fingerprint check (CVE-2023-28319)

  - curl: IDN wildcard match may lead to Improper Cerificate Validation (CVE-2023-28321)

  - curl: more POST-after-PUT confusion (CVE-2023-28322)

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

The version of mod24_security installed on the remote host is prior to 2.8.0-5.28. It is, therefore, affected by a vulnerability as referenced in the ALAS-2023-1772 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

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

The version of mod_security installed on the remote host is prior to 2.9.7-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2098 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

  - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application     Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the     FILES_TMP_CONTENT collection. (CVE-2023-24021)

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

The version of mod_security installed on the remote host is prior to 2.8.0-5.28. It is, therefore, affected by a vulnerability as referenced in the ALAS-2023-1763 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

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

According to the versions of the mod_security package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

  - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application     Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the     FILES_TMP_CONTENT collection. (CVE-2023-24021)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Fedora 36 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-8aa264d5c5 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

  - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application     Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the     FILES_TMP_CONTENT collection. (CVE-2023-24021)

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

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-bc61f7a145 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

  - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application     Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the     FILES_TMP_CONTENT collection. (CVE-2023-24021)

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

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-09f0496e60 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

  - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application     Firewall bypasses and buffer over-reads on the Web Application Firewall when executing rules that read the     FILES_TMP_CONTENT collection. (CVE-2023-24021)

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 SLES12 / SLES_SAP12 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2023:0318-1 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

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

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2023:0314-1 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the SUSE-SU-2023:0317-1 advisory.

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

Note that Nessus has not tested for this issue 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-3283 advisory.

  - The OWASP ModSecurity Core Rule Set (CRS) is affected by a partial rule set bypass for HTTP multipart     requests by submitting a payload that uses a character encoding scheme via the Content-Type or the     deprecated Content-Transfer-Encoding multipart MIME header fields that will not be decoded and inspected     by the web application firewall engine and the rule set. The multipart payload will therefore bypass     detection. A vulnerable backend that supports these encoding schemes can potentially be exploited. The     legacy CRS versions 3.0.x and 3.1.x are affected, as well as the currently supported versions 3.2.1 and     3.3.2. Integrators and users are advised upgrade to 3.2.2 and 3.3.3 respectively. The mitigation against     these vulnerabilities depends on the installation of the latest ModSecurity version (v2.9.6 / v3.0.8).
    (CVE-2022-39956)

  - In ModSecurity before 2.9.6 and 3.x before 3.0.8, HTTP multipart requests were incorrectly parsed and     could bypass the Web Application Firewall. NOTE: this is related to CVE-2022-39956 but can be considered     independent changes to the ModSecurity (C language) codebase. (CVE-2022-48279)

  - Incorrect handling of '\0' bytes in file uploads in ModSecurity before 2.9.7 may allow for Web Application     Firewall bypasses and buffer overflows on the Web Application Firewall when executing rules that read the     FILES_TMP_CONTENT collection. (CVE-2023-24021)

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
181427	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 ESM : ModSecurity vulnerabilities (USN-6370-1)	Nessus	Ubuntu Local Security Checks	high
179879	RHEL 7 / 8 : Red Hat JBoss Core Services Apache HTTP Server 2.4.57 (RHSA-2023:4629)	Nessus	Red Hat Local Security Checks	critical
177908	Amazon Linux AMI : mod24_security (ALAS-2023-1772)	Nessus	Amazon Linux Local Security Checks	high
177861	Amazon Linux 2 : mod_security (ALAS-2023-2098)	Nessus	Amazon Linux Local Security Checks	high
177015	Amazon Linux AMI : mod_security (ALAS-2023-1763)	Nessus	Amazon Linux Local Security Checks	high
176993	EulerOS 2.0 SP5 : mod_security (EulerOS-SA-2023-2160)	Nessus	Huawei Local Security Checks	high
174651	Fedora 36 : mod_security (2023-8aa264d5c5)	Nessus	Fedora Local Security Checks	high
174647	Fedora 38 : mod_security (2023-bc61f7a145)	Nessus	Fedora Local Security Checks	high
174645	Fedora 37 : mod_security (2023-09f0496e60)	Nessus	Fedora Local Security Checks	high
174213	EulerOS 2.0 SP8 : mod_security (EulerOS-SA-2023-1601)	Nessus	Huawei Local Security Checks	high
171426	SUSE SLES12 Security Update : apache2-mod_security2 (SUSE-SU-2023:0318-1)	Nessus	SuSE Local Security Checks	high
171403	SUSE SLES15 / openSUSE 15 Security Update : apache2-mod_security2 (SUSE-SU-2023:0314-1)	Nessus	SuSE Local Security Checks	high
171402	SUSE SLES15 Security Update : apache2-mod_security2 (SUSE-SU-2023:0317-1)	Nessus	SuSE Local Security Checks	high
170697	Debian DLA-3283-1 : modsecurity-apache - LTS security update	Nessus	Debian Local Security Checks	critical

Detections

Analytics

CVE-2022-48279

high

Tenable Plugins

high

critical

high

high

high

high

high

high

high

high

high

high

high

critical