Caldera OpenServer deliver buffer overflow
| sco-openserver-deliver-bo (6302) |  High Risk |
Description:
SCO OpenServer versions 5.0 to 5.0.6 are vulnerable to a buffer overflow in the deliver program. By default, the deliver program is installed suid root. By using command line arguments and sending deliver a string containing 4085 characters or more, an attacker can overflow the buffer and execute arbitrary code on the system with root privileges.
Platforms Affected:
- SCO, SCO OpenServer 5.0.6
Remedy:
Apply the appropriate patch for your system, as listed in SCO System Security Enhancement (SSE) SSE072B 11-Apr-2001. See References.
As a workaround, chmod -s /opt/K/SCO/MMDF/2.43.3b/usr/mmdf/bin/deliver.
Consequences:
Gain Privileges
References:
- SCO System Security Enhancement (SSE) SSE072C 30-Aug-2001, SSE072C at ftp://ftp.sco.com/pub/SSE/sse072c/.
- Strategic Reconnaissance Team Security Advisory SRT2001-03, SCO 5.0.6 MMDF issues (deliver) at http://marc.theaimsgroup.com/?l=bugtraq&m=98576616300821&w=2.
- BID-2583: SCO OpenServer deliver Buffer Overflow Vulnerability
- CVE-2001-0587: deliver program in MMDF 2.43.3b in SCO OpenServer 5.0.6 can allow a local attacker to gain additional privileges via a buffer overflow in the first argument to the command.
Reported:
Mar 27, 2001
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