Improper Encoding or Escaping of Output Affecting mod24_proxy_html package, versions <1:2.4.61-1.103.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating

    Threat Intelligence

    EPSS
    0.04% (10th percentile)

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  • Snyk ID SNYK-AMZN201803-MOD24PROXYHTML-7558612
  • published 25 Jul 2024
  • disclosed 1 Jul 2024

How to fix?

Upgrade Amazon-Linux:2018.03 mod24_proxy_html to version 1:2.4.61-1.103.amzn1 or higher.
This issue was patched in ALAS-2024-1944.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod24_proxy_html package and not the mod24_proxy_html package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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
Expand this section

Red Hat

8.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High