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Improper Encoding or Escaping of Output Affecting mod_session package, versions <0:2.4.57-11.el9_4

Severity

 Recommended
high

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-ALMALINUX9-MODSESSION-7568845
  • published 25 Jul 2024
  • disclosed 23 Jul 2024
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Introduced: 23 Jul 2024

CVE-2024-38475 Open this link in a new tab
CWE-116 Open this link in a new tab

How to fix?

Upgrade AlmaLinux:9 mod_session to version 0:2.4.57-11.el9_4 or higher.
This issue was patched in ALSA-2024:4726.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_session package and not the mod_session package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

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.

CVSS Scores

version 3.1
Expand this section

Red Hat

9.1 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
Expand this section

SUSE

8.2 high