Rule: -- Sid: 1821 -- Summary: This event is generated when an attempt is made to exploit a known vulnerability in dvips on some RedHat Linux systems. -- Impact: Execution of commands with the privileges of the lp daemon. -- Detailed Information: dvips is used to convert DVI documents into PostScript format for printing. The line printer daemon may use dvips to print DVI documents using a filter. A configuration error in some distributions of RedHat Linux allows a remote attacker to execute commands via this utility. -- Affected Systems: RedHat Linux 6.2, 7.0 and 7.1 -- Attack Scenarios: The attacker can place the commands to be excuted in a DVI file and send that to the lp daemon. -- Ease of Attack: Simple. No exploit software is required. -- False Positives: None Known -- False Negatives: None Known -- Corrective Action: Upgrade to the latest non-affected version of the software. Ensure that dvips is executed in safe mode by the lp daemon by specifying the use of the -R flag in the dvi-to-ps.fpi configuration file. -- Contributors: Sourcefire Research Team Brian Caswell <bmc@sourcefire.com> Nigel Houghton <nigel.houghton@sourcefire.com> -- Additional References: Bugtraq: http://www.securityfocus.com/bid/3241 CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2001-1002 --
