Description
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.
CVSS breakdown
CVSS 3.0
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Affected products
- MIT / Kerberos 51.8 – 1.8
- MIT / Kerberos 51.8.1 – 1.8.1
- MIT / Kerberos 51.8.2 – 1.8.2
- MIT / Kerberos 51.8.3 – 1.8.3
References
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/3094
- VENDOR_ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- VENDOR_ADVISORYhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:246
- MAILING_LISThttp://lists.fedoraproject.org/pipermail/package-announce/2010-December/051999.html
- VENDOR_ADVISORYhttp://kb.vmware.com/kb/1035108
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/3118
- MISChttp://www.securityfocus.com/archive/1/514953/100/0/threaded
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html
- VENDOR_ADVISORYhttp://www.vmware.com/security/advisories/VMSA-2011-0007.html
- MAILING_LISThttp://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html
- VENDOR_ADVISORYhttp://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/3095
- VENDOR_ADVISORYhttp://secunia.com/advisories/42399
- MAILING_LISThttp://lists.vmware.com/pipermail/security-announce/2011/000133.html
- MISChttp://www.securitytracker.com/id?1024803
- MISChttp://www.securityfocus.com/archive/1/517739/100/0/threaded
- MAILING_LISThttp://lists.fedoraproject.org/pipermail/package-announce/2010-December/051976.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
- MISChttp://www.redhat.com/support/errata/RHSA-2010-0925.html
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/USN-1030-1
- MISChttp://osvdb.org/69608
- MISChttp://www.securityfocus.com/bid/45117
- VENDOR_ADVISORYhttp://support.apple.com/kb/HT4581
Updated 18m ago · 8 sources