Improper Encoding or Escaping of Output Affecting httpd:2.4/httpd package, versions <0:2.4.37-65.module_el8.10.0+3872+9b8ab21e.1


Severity

Recommended
high

Based on AlmaLinux security rating

    Threat Intelligence

    EPSS
    2.57% (91st percentile)

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  • Snyk ID SNYK-ALMALINUX8-HTTPD-7558070
  • published 24 Jul 2024
  • disclosed 23 Jul 2024

How to fix?

Upgrade AlmaLinux:8 httpd:2.4/httpd to version 0:2.4.37-65.module_el8.10.0+3872+9b8ab21e.1 or higher.
This issue was patched in ALSA-2024:4720.

NVD Description

Note: Versions mentioned in the description apply only to the upstream httpd:2.4/httpd package and not the httpd:2.4/httpd package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 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

8.1 high
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SUSE

8.2 high