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Vulnerability Assessment & Network Security Forums |
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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery. Home >> Browse Vulnerability Assessment Database >> Gain a shell remotely >> CUPS < 1.1.23 Multiple Vulnerabilities Vulnerability Assessment Details
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CUPS < 1.1.23 Multiple Vulnerabilities |
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Checks version of CUPS Detailed Explanation for this Vulnerability Assessment The remote host is running a CUPS server whose version number is between 1.0.4 and 1.1.22 inclusive. Such versions are prone to multiple vulnerabilities : - A remotely exploitable buffer overflow in the 'hpgltops' filter that enable specially crafted HPGL files can execute arbitrary commands as the CUPS 'lp' account. - A local user may be able to prevent anyone from changing his or her password until a temporary copy of the new password file is cleaned up ('lppasswd' flaw). - A local user may be able to add arbitrary content to the password file by closing the stderr file descriptor while running lppasswd (lppasswd flaw). - A local attacker may be able to truncate the CUPS password file, thereby denying service to valid clients using digest authentication. (lppasswd flaw). - The application applys ACLs to incoming print jobs in a case-sensitive fashion. Thus, a possible hacker can bypass restrictions by changing the case in printer names when submitting jobs. [Fixed in 1.1.21.] ***** Nessus has acertaind the vulnerability exists simply ***** by looking at the version number of CUPS installed on ***** the remote host. See also : http://www.cups.org/str.php?L700 http://www.cups.org/str.php?L1024 http://www.cups.org/str.php?L1023 Solution : Upgrade to CUPS 1.1.23 or later. Network Security Threat Level: High Networks Security ID: 11968, 12004, 12005, 12007, 12200, 14265 Vulnerability Assessment Copyright: This script is Copyright (C) 2005 George A. Theall |
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