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 stream-cipher operations.

• CWE-310

• http://kb.vmware.com/kb/1035108
• http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
• http://lists.vmware.com/pipermail/security-announce/2011/000133.html
• http://osvdb.org/69608
• http://secunia.com/advisories/42399Vendor Advisory
• http://support.apple.com/kb/HT4581
• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txtVendor Advisory
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:246
• http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlPatch, Vendor Advisory
• http://www.redhat.com/support/errata/RHSA-2010-0925.html
• http://www.securityfocus.com/archive/1/514953/100/0/threaded
• http://www.securityfocus.com/archive/1/517739/100/0/threaded
• http://www.securityfocus.com/bid/45117
• http://www.securitytracker.com/id?1024803
• http://www.ubuntu.com/usn/USN-1030-1
• http://www.vmware.com/security/advisories/VMSA-2011-0007.html
• http://www.vupen.com/english/advisories/2010/3094
• http://www.vupen.com/english/advisories/2010/3095
• http://www.vupen.com/english/advisories/2010/3118
• http://kb.vmware.com/kb/1035108
• http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
• http://lists.vmware.com/pipermail/security-announce/2011/000133.html
• http://osvdb.org/69608
• http://secunia.com/advisories/42399Vendor Advisory
• http://support.apple.com/kb/HT4581
• http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txtVendor Advisory
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:246
• http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlPatch, Vendor Advisory
• http://www.redhat.com/support/errata/RHSA-2010-0925.html
• http://www.securityfocus.com/archive/1/514953/100/0/threaded
• http://www.securityfocus.com/archive/1/517739/100/0/threaded
• http://www.securityfocus.com/bid/45117
• http://www.securitytracker.com/id?1024803
• http://www.ubuntu.com/usn/USN-1030-1
• http://www.vmware.com/security/advisories/VMSA-2011-0007.html
• http://www.vupen.com/english/advisories/2010/3094
• http://www.vupen.com/english/advisories/2010/3095
• http://www.vupen.com/english/advisories/2010/3118

Published

Dec 2, 2010

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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