Code Execution or Source Code Disclosure Vulnerability in Apache HTTP Server's mod_rewrite
CVE-2024-38475

Currently unrated

Key Information:

Vendor
Apache
Vendor
CVE Published:
1 July 2024

Badges

šŸ‘¾ Exploit ExistsšŸŸ” Public PoC

Summary

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 areĀ 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 inĀ server context that use a backreferences or variables as the first segment of the substitution are affected.Ā  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.

Affected Version(s)

Apache HTTP Server 2.4.0 <= 2.4.59

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

Timeline

  • šŸŸ”

    Public PoC available

  • šŸ‘¾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Orange Tsai (@orange_8361) from DEVCORE
.