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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 >> [DSA273] DSA-273-1 krb4 Vulnerability Assessment Details
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[DSA273] DSA-273-1 krb4 |
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DSA-273-1 krb4 Detailed Explanation for this Vulnerability Assessment A cryptographic weakness in version 4 of the Kerberos protocol permits a possible hacker to use a chosen-plaintext attack to impersonate any principal in a realm. Additional cryptographic weaknesses in the krb4 implementation permit the use of cut-and-paste attacks to fabricate krb4 tickets for unauthorized client principals if triple-DES keys are used to key krb4 services. These attacks can subvert a site's entire Kerberos authentication infrastructure. For the stable distribution (woody) this problem has been fixed in version 1.1-8-2.3. For the old stable distribution (potato) this problem has been fixed in version 1.0-2.3. For the unstable distribution (sid) this problem has been fixed in version 1.2.2-1. We recommend that you upgrade your krb4 packages immediately. Solution : http://www.debian.org/security/2003/dsa-273 Network Security Threat Level: High Networks Security ID: Vulnerability Assessment Copyright: This script is (C) 2006 Michel Arboi |
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