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CVE-2010-4021 Details

Description

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the use of TGT credentials for armoring TGS requests, which might allow remote authenticated users to impersonate a client by rewriting an inner request, aka a "KrbFastReq forgery issue."

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://kb.vmware.com/kb/1035108	CVE
http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html	CVE
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html	CVE
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html	CVE
http://lists.vmware.com/pipermail/security-announce/2011/000133.html	CVE
http://osvdb.org/69607	CVE
http://support.apple.com/kb/HT4581	CVE
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt	CVE	Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:246	CVE
http://www.securityfocus.com/archive/1/514953/100/0/threaded	CVE
http://www.securityfocus.com/archive/1/517739/100/0/threaded	CVE
http://www.securityfocus.com/bid/45122	CVE
http://www.securitytracker.com/id?1024803	CVE
http://www.ubuntu.com/usn/USN-1030-1	CVE
http://www.vmware.com/security/advisories/VMSA-2011-0007.html	CVE
http://www.vupen.com/english/advisories/2010/3094	CVE
http://www.vupen.com/english/advisories/2010/3118	CVE
http://kb.vmware.com/kb/1035108	[email protected]
http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html	[email protected]
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html	[email protected]
http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html	[email protected]
http://lists.vmware.com/pipermail/security-announce/2011/000133.html	[email protected]
http://osvdb.org/69607	[email protected]
http://support.apple.com/kb/HT4581	[email protected]
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt	[email protected]	Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:246	[email protected]
http://www.securityfocus.com/archive/1/514953/100/0/threaded	[email protected]
http://www.securityfocus.com/archive/1/517739/100/0/threaded	[email protected]
http://www.securityfocus.com/bid/45122	[email protected]
http://www.securitytracker.com/id?1024803	[email protected]
http://www.ubuntu.com/usn/USN-1030-1	[email protected]
http://www.vmware.com/security/advisories/VMSA-2011-0007.html	[email protected]
http://www.vupen.com/english/advisories/2010/3094	[email protected]
http://www.vupen.com/english/advisories/2010/3118	[email protected]

see all 34 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-16	Configuration	[email protected]
CWE-264	Permissions, Privileges, and Access Controls	[email protected]

Affected Products

Product	Versions
mit kerberos 5	1.7
CPE cpe:2.3:a:mit:kerberos_5:1.7:::::::* Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 29, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jan 21, 2020	CPE Deprecation Remap	[email protected]
Oct 10, 2018	CVE Modified	[email protected]
Dec 2, 2010	Initial Analysis	[email protected]