Description
Stack-based buffer overflow in Monit 1.4 to 4.1 allows remote attackers to execute arbitrary code via a long HTTP request.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | monit | 1:4.2.1-1 | — |
| Debian 13 | monit | 1:4.2.1-1 | — |
| Debian 12 | monit | 1:4.2.1-1 | — |
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 2
- Monit 4.1 - Remote Buffer Overflow EDB-173 · remote · Apr 9, 2004 · verified
- Monit 1.4/2.x/3/4 - 'HTTP Request' Buffer Overrun EDB-23397 · remote · Nov 24, 2003 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://www.tildeslash.com/monit/dist/CHANGES.txt
- VU#623854 third-party-advisory
- monit-http-bo(13817) vdb-entry
- GLSA-200403-14 vendor-advisory
- 9099 vdb-entry
- 10280 third-party-advisory
- 20031124 Monit 4.1 HTTP interface multiple security vulnerabilities mailing-list