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 indirectories 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.

Affected

Apache Software Foundation · Apache HTTP Server

CVSS v3.1 NVD

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 CNA

8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS

2.46% chance of exploitation in the next 30 days, 84th percentile

Published

2024-07-01

Updated

2025-03-25

Proof-of-concept exploits (2)

• MizoxXXx/PoC_cryptonic0★ · 2026-02-21
• mrmtwoj/apache-vulnerability-testing135★ · 2024-10-05

Security advisories

• https://httpd.apache.org/security/vulnerabilities_24.html
• https://security.netapp.com/advisory/ntap-20240712-0001

References

• CVE Record
• NVD entry

Related

• CVE-2024-38476
• CVE-2018-14847
• CVE-2023-25136
• CVE-2023-28452
• CVE-2023-29483
• CVE-2023-38709