MBSE BBS mbuseradd.c buffer overflow
| mbsebbs-mbuseradd-bo (31639) |  High Risk |
Description:
MBSE BBS is vulnerable to a stack-based buffer overflow, caused by improper bounds checking in the mbuseradd.c file. By setting an overly long MBSE_ROOT environment variable, a local attacker could overflow a buffer and execute arbitrary code on the system with root privileges.
Platforms Affected:
- MBSE, MBSE BBS 0.70 & prior
Remedy:
Upgrade to the latest version of MBSE BBS (0.80 or later), available from the MBSE BBS Web site. See References.
Consequences:
Gain Privileges
References:
- Full-Disclosure Mailing List, Thu Jan 18 2007 - 09:30:18 CST, mbsebbs 0.70.0 & below local root exploit at http://archives.neohapsis.com/archives/fulldisclosure/2007-01/0347.html.
- MBSE BBS Web site, MBSE BBS For Unix at http://www.mbse.eu/mbse/mbsebbs/index.html.
- BID-22112: MBSE-BBS MBSE_Root Multiple Local Privilege Escalation Vulnerabilites
- CVE-2007-0368: Stack-based buffer overflow in mbse-bbs 0.70 and earlier allows local users to execute arbitrary code via a long string in the MBSE_ROOT environment variable.
Reported:
Jan 18, 2007
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