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
    3.59% (92nd percentile)

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  • Snyk ID SNYK-ALMALINUX9-MODSESSION-7568834
  • published 25 Jul 2024
  • disclosed 23 Jul 2024

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.

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.

CVSS Scores

version 3.1
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NVD

9.8 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)
    High
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Red Hat

9.8 critical
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SUSE

8.2 high