Description
Stack-based buffer overflow in the command_Expand_Interpret function in command.c in ppp (aka user-ppp), as distributed in FreeBSD 6.3 and 7.0, OpenBSD 4.1 and 4.2, and the net/userppp package for NetBSD, allows local users to gain privileges via long commands containing "~" characters.
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
- BSD PPP 'pppx.conf' - Local Denial of Service EDB-31333 · dos · Mar 4, 2008 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 29238 third-party-advisory
- [4.2] 20080307 009: SECURITY FIX: March 7, 2008 vendor-advisory
- 20080229 *BSD user-ppp local root (when conditions permit) mailing-list
- [4.1] 20080307 014: SECURITY FIX: March 7, 2008 vendor-advisory
- 20080301 Re: *BSD user-ppp local root (when conditions permit) mailing-list
- 28090 vdb-entry
- userppp-commandexpandinterpret-bo(41034) vdb-entry
- 29234 third-party-advisory
- 29240 third-party-advisory