Rcvtty for BSD/OS allows local users to elevate privileges
| rcvtty-elevate-privileges (5587) |  Medium Risk |
Description:
Rcvtty, a component of the NH mail system for BSDI BSD/OS systems, could allow a local attacker to gain elevated privileges, due to a vulnerability in rcvtty. The rcvtty component fails to properly drop SGID privileges before executing code contained within incoming messages. An attacker can use this to obtain elevated privileges on the system.
Platforms Affected:
- WindRiver, BSDOS 3.0
- WindRiver, BSDOS 3.1
- WindRiver, BSDOS 4.0
- WindRiver, BSDOS 4.0.1
Remedy:
No remedy available as of November 15, 2008.
Consequences:
Gain Privileges
References:
- BugTraq Mailing List, Sun Nov 26 2000 - 21:04:00 CST, BSDi 3.0/4.0 rcvtty gid=tty exploit... (mh package) at http://archives.neohapsis.com/archives/bugtraq/2000-11/0355.html.
- BID-2009: rcvtty Arbitrary Command Execution Vulnerability
- CVE-2000-1103: rcvtty in BSD 3.0 and 4.0 does not properly drop privileges before executing a script, which allows local attackers to gain privileges by specifying an alternate Trojan horse script on the command line.
Reported:
Nov 27, 2000
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