Rule: -- Sid: 289 -- Summary: This event is generated when a remote attacker attempts to exploit a QUALCOMM Qpopper POP3 buffer overflow vulnerability in SCO OpenServer systems. -- Impact: Remote execution of arbitrary code leading to remote root compromise. -- Detailed Information: An exploit is available that takes advantage of a buffer overflow vulnerability in QUALCOMM Qpopper POP3 mail server version 2.53 or earlier. This exploit can be used to obtain root access to the compromised server. -- Affected Systems: SCO servers that ship QUALCOMM Qpopper POP3 server version 2.53 or earlier: -SCO OpenServer Enterprise System Release 5.0.5, 5.0.6, 5.0.6a -SCO OpenServer Host System Release 5.0.5, 5.0.6, 5.0.6a -SCO OpenServer Desktop System Release 5.0.5, 5.0.6, 5.0.6a -SCO OpenServer Enterprise System Release 5.0.4 -SCO OpenServer Host System Release 5.0.4 -SCO OpenServer Desktop System Release 5.0.4 -- Attack Scenarios: An attacker executes exploit code against a vulnerable server and obtains root privileges on the compromised computer. -- Ease of Attack: Simple. An exploit exists. -- False Positives: None known. -- False Negatives: None known. -- Corrective Action: Upgrade QUALCOMM Qpopper. See ftp://stage.caldera.com/pub/security/openserver/CSSA-2001-SCO.8/ for patched binaries for SCO OpenServer and an advisory with installation instructions. -- Contributors: Original rule writer unknown Sourcefire Research Team Sourcefire Technical Publications Team Jen Harvey <jennifer.harvey@sourcefire.com> -- Additional References: CERT http://www.cert.org/advisories/CA-1998-08.html --
