Configuration in Kerberos 5 - CVE-2010-4021
Published: July 7, 2022
Vulnerability identifier: #VU64985
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2010-4021
CWE-ID: CWE-16
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: MIT
Affected software:
Kerberos 5
Kerberos 5
Detailed vulnerability description
The vulnerability allows a remote user to modify files on the system.
The vulnerability exists due to MIT Kerberos 5 does not properly restrict the use of TGT credentials for armoring TGS requests. A remote authenticated user can impersonate a client by rewriting an inner request, aka a KrbFastReq forgery issue.
How to mitigate CVE-2010-4021
Install updates from vendor's website.
Sources
- http://kb.vmware.com/kb/1035108
- http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.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/69607
- http://support.apple.com/kb/HT4581
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:246
- 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/45122
- 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/2010/3118