Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [day] [month] [year] [list]
Date: Mon, 01 Jul 2024 12:42:09 +0000
From: Eric Covener <>
Subject: CVE-2024-38475: Apache HTTP Server weakness in mod_rewrite when
 first segment of substitution matches filesystem path. 

Severity: important

Affected versions:

- Apache HTTP Server 2.4.0 through 2.4.59


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


Orange Tsai (@orange_8361) from DEVCORE (finder)



2024-04-01: reported

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.