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High 1 exploited CVE ALAS2-2024-2594 7 CVEs

Important: httpd security update (Amazon Linux 2)

Published Jul 18, 2024 · Updated Jul 22, 2024

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2024-39884: 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-2024-39573: 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. 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-2024-38476: 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-2024-38475: 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-2024-38474: 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-2024-38473: 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.

Fixed packages 11

ReleasePackageFixed in
Amazon Linux · 2 httpd 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 httpd-debuginfo 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 httpd-devel 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 httpd-filesystem 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 httpd-manual 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 httpd-tools 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 mod_ldap 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 mod_md 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 mod_proxy_html 1:2.4.61-1.amzn2.0.1
Amazon Linux · 2 mod_session 0:2.4.61-1.amzn2.0.1
Amazon Linux · 2 mod_ssl 1:2.4.61-1.amzn2.0.1

Vulnerabilities 7

  • Critical 9.1
    CVE-2024-38475 Exploited Public exploit Scanner template EPSS 100%

    Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.

    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…

    Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Alpine
    KEV May 1, 2025
  • Critical 9.8
    CVE-2024-38476 Public exploit EPSS 42%

    Apache HTTP Server may use exploitable/malicious backend application output to run local handlers via internal redirect

    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…

    Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Alpine
  • High 8.1
    CVE-2024-38473 Public exploit Scanner template EPSS 26%

    Apache HTTP Server proxy encoding problem

    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, w…

    Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine
  • High 8.1
    CVE-2024-38474

    Apache HTTP Server weakness with encoded question marks in backreferences

    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 exec…

    Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Alpine
  • High 7.5
    CVE-2024-38477

    Apache HTTP Server: Crash resulting in Denial of Service in mod_proxy via a malicious request

    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.

    Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Alpine
  • High 7.5
    CVE-2024-39573 EPSS 35%

    Apache HTTP Server: mod_rewrite proxy handler substitution

    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.

    Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Alpine
  • Medium 6.2
    CVE-2024-39884

    Apache HTTP Server: source code disclosure with handlers configured via AddType

    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 disc…

    Apache Software Foundation Apache HTTP Server apache2 apache2 Debian Ubuntu Azure Linux Alpine

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-38473.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-38474.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-38475.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-38476.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-38477.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-39573.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2024-39884.html