The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6885-1 advisory.

    Marc Stern discovered that the Apache HTTP Server incorrectly handled serving WebSocket protocol upgrades     over HTTP/2 connections. A remote attacker could possibly use this issue to cause the server to crash,     resulting in a denial of service. (CVE-2024-36387)

    Orange Tsai discovered that the Apache HTTP Server mod_proxy module incorrectly sent certain request URLs     with incorrect encodings to backends. A remote attacker could possibly use this issue to bypass     authentication. (CVE-2024-38473)

    Orange Tsai discovered that the Apache HTTP Server mod_rewrite module incorrectly handled certain     substitutions. A remote attacker could possibly use this issue to execute scripts in directories not     directly reachable by any URL, or cause a denial of service. Some environments may require using the new     UnsafeAllow3F flag to handle unsafe substitutions. (CVE-2024-38474, CVE-2024-38475, CVE-2024-39573)

    Orange Tsai discovered that the Apache HTTP Server incorrectly handled certain response headers. A remote     attacker could possibly use this issue to obtain sensitive information, execute local scripts, or perform     SSRF attacks. (CVE-2024-38476)

    Orange Tsai discovered that the Apache HTTP Server mod_proxy module incorrectly handled certain requests.
    A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of     service. (CVE-2024-38477)

    It was discovered that the Apache HTTP Server incorrectly handled certain handlers configured via AddType.
    A remote attacker could possibly use this issue to obtain source code. (CVE-2024-39884)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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 packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2591-1 advisory.

    - CVE-2024-38475: Fixed improper escaping of output in mod_rewrite (bsc#1227268)
    - CVE-2024-38476: Fixed server may use exploitable/malicious backend application output to run local     handlers via internal redirect (bsc#1227269)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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

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

    Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect     encoding to be sent to backend services, potentially bypassing authentication via crafted requests.Users     are recommended to upgrade to version 2.4.60, which fixes this issue.(CVE-2024-38473)

    Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to     execute scripts in directories permitted by the configuration but not directly reachable by anyURL or     source disclosure of scripts meant to only to be executed as CGI.  Users are recommended to upgrade to     version 2.4.60, which fixes this issue.  Some RewriteRules that capture and substitute unsafely will now     fail unless rewrite flag 'UnsafeAllow3F' is specified.(CVE-2024-38474)

    Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to     map URLs to filesystem locations that arepermitted to be served by the server but are not     intentionally/directly reachable by any URL, resulting in code execution or source code disclosure.
    Substitutions inserver context that use a backreferences or variables as the first segment of the     substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag     'UnsafePrefixStat' can be used to opt back in once ensuring the substitution is appropriately     constrained.(CVE-2024-38475)

    Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure,     SSRF or local script execution viabackend applications whose response headers are malicious or     exploitable.  Users are recommended to upgrade to version 2.4.60, which fixes this issue.(CVE-2024-38476)

    null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash     the server via a malicious request. Users are recommended to upgrade to version 2.4.60, which fixes this     issue.(CVE-2024-38477)

    Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe     RewriteRules to unexpectedly setup URL's to be handled by mod_proxy. Users are recommended to upgrade to     version 2.4.60, which fixes this issue.(CVE-2024-39573)

    A regression in the core of Apache HTTP Server 2.4.60 ignores some use of the legacy content-type based     configuration of handlers. 'AddType' and similar configuration, under some circumstances where files     are requested indirectly, result in source code disclosure of local content. For example, PHP scripts may     be served instead of interpreted.  Users are recommended to upgrade to version 2.4.61, which fixes this     issue.(CVE-2024-39884)

Tenable has extracted the preceding description block directly from the EulerOS httpd security advisory.

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

The remote MiracleLinux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2024-8700:04 advisory.

    * CVE-2024-38474: mod_rewrite: server weakness with encoded question marks in     backreferences
    * CVE-2024-38475: mod_rewrite: server weakness in mod_rewrite when first segment     of substitution matches filesystem path
    * CVE-2024-38477: mod_proxy: crash resulting in Denial of Service in mod_proxy     via a malicious request
    * CVE-2024-38476: http: server use exploitable/malicious backend application     output to run local handlers via internal redirect
    * CVE-2024-39573: mod_rewrite: proxy handler substitution     CVE(s):
    CVE-2024-38474     Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to     execute scripts in directories permitted by the configuration but not directly reachable by any URL or     source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to     version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely will now     fail unless rewrite flag UnsafeAllow3F is specified.
    CVE-2024-38475     Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to     map URLs to filesystem locations that are permitted to be served by the server but are not     intentionally/directly reachable by any URL, resulting in code execution or source code disclosure.
    Substitutions in server context that use a backreferences or variables as the first segment of the     substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag     UnsafePrefixStat can be used to opt back in once ensuring the substitution is appropriately constrained.
    CVE-2024-38476     Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure,     SSRF or local script execution via backend applications whose response headers are malicious or     exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue.
    CVE-2024-38477     null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash     the server via a malicious request. Users are recommended to upgrade to version 2.4.60, which fixes this     issue.
    CVE-2024-39573     Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe     RewriteRules to unexpectedly setup URL's to be handled by mod_proxy. Users are recommended to upgrade to     version 2.4.60, which fixes this issue.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

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 SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2624-1 advisory.

    - CVE-2024-38475: Fixed improper escaping of output in mod_rewrite (bsc#1227268)
    - CVE-2024-38476: Fixed server may use exploitable/malicious backend application output to run local     handlers via internal redirect (bsc#1227269)
    - CVE-2024-38477: Fixed null pointer dereference in mod_proxy (bsc#1227270)
    - CVE-2024-39573: Fixed potential SSRF in mod_rewrite (bsc#1227271)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

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	Published	Updated	Severity
201972	Ubuntu 20.04 LTS / 22.04 LTS / 23.10 / 24.04 LTS : Apache HTTP Server vulnerabilities (USN-6885-1)	Nessus	Ubuntu Local Security Checks	7/8/2024	5/2/2025	critical
203012	SUSE SLES15 Security Update : apache2 (SUSE-SU-2024:2591-1)	Nessus	SuSE Local Security Checks	7/23/2024	5/2/2025	critical
207172	EulerOS 2.0 SP9 : httpd (EulerOS-SA-2024-2393)	Nessus	Huawei Local Security Checks	9/12/2024	5/2/2025	critical
293077	MiracleLinux 7 : httpd-2.4.6-99.1.0.2.el7.AXS7 (AXSA:2024-8700:04)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	critical
204902	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : apache2 (SUSE-SU-2024:2624-1)	Nessus	SuSE Local Security Checks	7/31/2024	5/2/2025	critical

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