Description
Buffer overflow in Pico Server (pServ) 2.0 beta 1 through beta 5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via (1) a 1024-byte TCP stream message, which triggers an off-by-one buffer overflow, or (2) a long method name in an HTTP request, (3) a long version number in an HTTP request, (4) a long User-Agent header, or (5) a long file path.
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
- Pserv 2.0 - HTTP Version Specifier Buffer Overflow EDB-22056 · dos · Nov 30, 2002 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- pserv-data-stream-bo(10783) vdb-entry
- http://www.securiteam.com/securitynews/6Q0020A6AS.html
- 6285 vdb-entry
- pserv-version-specifier-bo(10789) vdb-entry
- pserv-http-bo(10734) vdb-entry
- 6283 vdb-entry
- 20021130 Multiple pServ Remote Buffer Overflow Vulnerabilities mailing-list
- 6284 vdb-entry
- 20021201 Multiple pServ Remote Buffer Overflow Vulnerabilities mailing-list