FreeBSD : krb5 -- RFC 3961 key-derivation checksum handling vulnerability (1d193bba-03f6-11e0-bf50-001a926c7637)

The MIT Kerberos team reports : MIT krb5 releases incorrectly accepts RFC 3961 key-derivation checksums using RC4 keys when verifying AD-SIGNEDPATH and AD-KDC-ISSUED authorization data. An authenticated remote attacker that controls a legitimate service principal has a 1/256 chance of forging the...

FreeBSD : krb5 -- multiple checksum handling vulnerabilities (11bbccbc-03ee-11e0-bcdb-001fc61c2a55)

The MIT Kerberos team reports : MIT krb5 clients incorrectly accept an unkeyed checksums in the SAM-2 preauthentication challenge. An unauthenticated remote attacker could alter a SAM-2 challenge, affecting the prompt text seen by the user or the kind of response sent to the KDC. Under some...

Ubuntu 6.06 LTS / 8.04 LTS / 9.10 / 10.04 LTS / 10.10 : krb5 vulnerabilities (USN-1030-1)

It was discovered that Kerberos did not properly determine the acceptability of certain checksums. A remote attacker could use certain checksums to alter the prompt message, modify a response to a Key Distribution Center KDC or forge a KRB-SAFE message. CVE-2010-1323 It was discovered that Kerber...

FreeBSD : krb5 -- multiple checksum handling vulnerabilities (0d57c1d9-03f4-11e0-bf50-001a926c7637)

The MIT Kerberos team reports : MIT krb incorrectly accepts an unkeyed checksum with DES session keys for version 2 RFC 4121 of the GSS-API krb5 mechanism. An unauthenticated remote attacker can forge GSS tokens that are intended to be integrity-protected but unencrypted, if the targeted...

Mandriva Update for krb5 MDVSA-2010:245 (krb5)

Check for the Version of krb5 OpenVAS Vulnerability Test Mandriva Update for krb5 MDVSA-2010:245 krb5 Authors: System Generated Check Copyright: Copyright c 2010 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the ter...

Mandriva Update for krb5 MDVSA-2010:245 (krb5)

Check for the Version of krb5 OpenVAS Vulnerability Test Mandriva Update for krb5 MDVSA-2010:245 krb5 Authors: System Generated Check Copyright: Copyright c 2010 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the ter...

Mandriva Update for krb5 MDVSA-2010:246 (krb5)

Check for the Version of krb5 OpenVAS Vulnerability Test Mandriva Update for krb5 MDVSA-2010:246 krb5 Authors: System Generated Check Copyright: Copyright c 2010 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the ter...

DEBIAN-CVE-2010-1324

MIT Kerberos 5 aka krb5 1.7.x and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to forge GSS tokens, gain privileges, or have unspecified other impact via 1 an unkeyed checksum, 2 an unkeyed PAC checksum, or 3 a KrbFastArmoredRe...

Design/Logic Flaw

MIT Kerberos 5 aka krb5 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a 1 AD-SIGNEDPATH or 2 AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte...

Cryptographic Issues

Overview Affected versions of this package are vulnerable to Cryptographic Issues. MIT Kerberos 5 aka krb5 1.7.x and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to forge GSS tokens, gain privileges, or have unspecified other...

CVE-2010-4020

MIT Kerberos 5 (krb5) 1.8.x–1.8.3 is affected by CVE-2010-4020 due to not rejecting RC4 key-derivation checksums, enabling remote authenticated users to forge AD-SIGNEDPATH or AD-KDC-ISSUED signatures and potentially gain privileges. Mitigation/advisories reference MITKRB5-SA-2010-007 and patches...

CVE-2010-4020

MIT Kerberos 5 aka krb5 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a 1 AD-SIGNEDPATH or 2 AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte...

CVE-2010-1324

MIT Kerberos 5 aka krb5 1.7.x and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to forge GSS tokens, gain privileges, or have unspecified other impact via 1 an unkeyed checksum, 2 an unkeyed PAC checksum, or 3 a KrbFastArmoredRe...

CVE-2010-1323

MIT Kerberos 5 aka krb5 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center KDC, or forge a KRB-SAFE message via...

CVE-2010-4020

MIT Kerberos 5 aka krb5 1.8.x through 1.8.3 does not reject RC4 key-derivation checksums, which might allow remote authenticated users to forge a 1 AD-SIGNEDPATH or 2 AD-KDC-ISSUED signature, and possibly gain privileges, by leveraging the small key space that results from certain one-byte...

Debian DSA-2129-1 : krb5 - checksum verification weakness

A vulnerability has been found in krb5, the MIT implementation of Kerberos. MIT krb5 clients incorrectly accept unkeyed checksums in the SAM-2 preauthentication challenge: an unauthenticated remote attacker could alter a SAM-2 challenge, affecting the prompt text seen by the user or the kind of...

MITKRB5-SA-2010-007 Multiple checksum handling vulnerabilities [CVE-2010-1324 CVE-2010-1323 CVE-2010-4020 CVE-2010-4021]

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 MITKRB5-SA-2010-007 MIT krb5 Security Advisory 2010-007 Original release: 2010-11-30 Last update: 2010-11-30 Topic: Multiple checksum handling vulnerabilities CVE-2010-1324 krb5 GSS-API applications may accept unkeyed checksums krb5 application servic...

DSA-2129-1 krb5 - checksum verification weakness

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krb5: incorrect acceptance of certain checksums (MITKRB5-SA-2010-007)

MIT Kerberos 5 aka krb5 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center KDC, or forge a KRB-SAFE message via...

krb5 -- multiple checksum handling vulnerabilities

The MIT Kerberos team reports: MIT krb incorrectly accepts an unkeyed checksum with DES session keys for version 2 RFC 4121 of the GSS-API krb5 mechanism. An unauthenticated remote attacker can forge GSS tokens that are intended to be integrity-protected but unencrypted, if the targeted...