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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 >> Debian Local Security Checks >> [DSA066] DSA-066-1 cfingerd Vulnerability Assessment Details
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[DSA066] DSA-066-1 cfingerd |
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DSA-066-1 cfingerd Detailed Explanation for this Vulnerability Assessment Steven van Acker reported on bugtraq that the version of cfingerd (a configurable finger daemon) as distributed in Debian GNU/Linux 2.2 suffers from two problems: The code that reads configuration files (files in which $ commands are expanded) copied its input to a buffer without checking for a buffer overflow. When the ALLOW_LINE_PARSING feature is enabled that code is used for reading users' files as well, so local users could exploit this. There also was a printf call in the same routine that did not protect against printf format attacks. Since ALLOW_LINE_PARSING is enabled in the default /etc/cfingerd.conf local users could use this to gain root access. This has been fixed in version 1.4.1-1.2, and we recommend that you upgrade your cfingerd package immediately. Solution : http://www.debian.org/security/2001/dsa-066 Network Security Threat Level: High Networks Security ID: 2914, 2915 Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi |
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