canonical ubuntu-linux CVE-2024-38475 vulnerability in Canonical and Other Products
Published on July 1, 2024

product logo product logo product logo product logo product logo
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.

Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Apache HTTP Server Improper Escaping of Output Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Apache HTTP Server contains an improper escaping of output vulnerability in mod_rewrite that 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.

The following remediation steps are recommended / required by May 22, 2025: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Vulnerability Analysis


Products Associated with CVE-2024-38475

You can be notified by stack.watch whenever vulnerabilities like CVE-2024-38475 are published in these products:

Canonical Ubuntu Linux
 
Apache HTTP Server
 
Red Hat Http Server
 
Oracle
 
NetApp Ontap 9
 

What versions are vulnerable to CVE-2024-38475?