Description
The multipart processor in ModSecurity before 2.5.9 allows remote attackers to cause a denial of service (crash) via a multipart form datapost request with a missing part header name, which triggers a NULL pointer dereference.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- ModSecurity < 2.5.9 - Remote Denial of Service EDB-8241 · dos · Mar 19, 2009 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- FEDORA-2009-2654 vendor-advisory
- modsecurity-multipart-dos(49212) vdb-entry
- 8241 exploit
- GLSA-200907-02 vendor-advisory
- 34256 third-party-advisory
- 35687 third-party-advisory
- 52553 vdb-entry
- 34311 third-party-advisory
- FEDORA-2009-2686 vendor-advisory
- http://sourceforge.net/project/shownotes.php?release_id=667542&group_id=68846
- SUSE-SR:2009:011 vendor-advisory
- 20090319 [ISecAuditors Security Advisories] ModSecurity < 2.5.9 remote Denial of Service mailing-list
- ADV-2009-0703 vdb-entry
- 34096 vdb-entry