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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 >> [DSA849] DSA-849-1 shorewall Vulnerability Assessment Details
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[DSA849] DSA-849-1 shorewall |
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DSA-849-1 shorewall Detailed Explanation for this Vulnerability Assessment "Supernaut" noticed that shorewall, the Shoreline Firewall, could generate an iptables configuration which is significantly more permissive than the rule set given in the shorewall configuration, if MAC verification are used in a non-default manner. When MACLIST_DISPOSITION is set to ACCEPT in the shorewall.conf file, all packets from hosts which fail the MAC verification pass through the firewall, without further checks. When MACLIST_TTL is set to a non-zero value, packets from hosts which pass the MAC verification pass through the firewall, again without further checks. The old stable distribution (woody) is not affected by this problem. For the stable distribution (sarge) this problem has been fixed in version 2.2.3-2. For the unstable distribution (sid) this problem has been fixed in version 2.4.1-2. We recommend that you upgrade your shorewall package. Solution : http://www.debian.org/security/2005/dsa-849 Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is (C) 2007 Michel Arboi |
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