Vulnerability in Mit Kerberos 5
CVE-2010-4021
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."
Published · last modified .
CVSS v2 metric
CVSS v2 base score 2.1 (Low). Vector: AV:N/AC:H/Au:S/C:N/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.021 (80.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Mit Kerberos 5 — versions 1.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.vupen.com/english/advisories/2010/3094 (vdb-entry)
- www.mandriva.com/security/advisories (vendor-advisory)
- kb.vmware.com/kb/1035108
- www.vupen.com/english/advisories/2010/3118 (vdb-entry)
- www.securityfocus.com/archive/1/514953/100/0/threaded (mailing-list)
- lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html (vendor-advisory)
- osvdb.org/69607 (vdb-entry)
- www.vmware.com/security/advisories/VMSA-2011-0007.html
- lists.apple.com/archives/security-announce/2011/Mar/msg00006.html (vendor-advisory)
- web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt (Vendor Advisory)
Frequently asked questions
- What is CVE-2010-4021?
- CVE-2010-4021 is a vulnerability in Mit Kerberos 5, classified under CWE-16. Published 2010-12-02.
- Is CVE-2010-4021 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.