{"id":"CVE-2010-4021","aliases":["DEBIAN-CVE-2010-4021","EUVD-2010-3997","GHSA-w2r7-v523-8fwv","openSUSE-SU-2024:10004-1"],"status":"published","title":"The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 does not properly restrict the...","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.\"","severity":{"version":"2.0","score":2.1,"vector":"AV:N/AC:H/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.02089,"percentile":0.81739,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-16","CWE-264"],"published":"2010-12-02T16:00:00Z","modified":"2026-10-23T17:47:46Z","fixes":[{"ecosystem":"Debian:12","package":"krb5","fixed_in":["1.8+dfsg~alpha1-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"krb5","fixed_in":["1.8+dfsg~alpha1-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"krb5","fixed_in":["1.8+dfsg~alpha1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8+dfsg~alpha1-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8+dfsg~alpha1-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8+dfsg~alpha1-1"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"krb5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.15-1.1"}]}],"bundled":54}],"products":[{"vendor":"mit","product":"kerberos_5"}],"references":[{"url":"http://www.vupen.com/english/advisories/2010/3094","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2010:246","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"http://kb.vmware.com/kb/1035108","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2010/3118","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/archive/1/514953/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00000.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://osvdb.org/69607","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"http://www.vmware.com/security/advisories/VMSA-2011-0007.html","tags":["x_refsource_CONFIRM","x_transferred","advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2011/Mar/msg00006.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","web"]},{"url":"http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/45122","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://lists.vmware.com/pipermail/security-announce/2011/000133.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://www.securitytracker.com/id?1024803","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","web"]},{"url":"http://www.securityfocus.com/archive/1/517739/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.ubuntu.com/usn/USN-1030-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"http://support.apple.com/kb/HT4581","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-4021"},{"url":"https://github.com/advisories/GHSA-w2r7-v523-8fwv"},{"url":"https://security-tracker.debian.org/tracker/CVE-2010-4021","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2002-2443","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0844","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0845","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0846","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-0847","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-3295","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2009-4212","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-0283","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-0628","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1320","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1321","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1322","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1323","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-1324","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4020","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4021","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4022","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0281","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0282","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0284","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0285","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1527","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1528","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1529","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1530","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1012","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1013","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-1016","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-1415","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-1417","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-1418","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4341","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4342","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4343","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4344","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5351","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5352","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5353","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5354","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5355","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9421","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9422","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9423","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2694","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2695","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2696","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2697","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2698","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8629","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8630","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8631","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3119","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-3120","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2010-4021","description":"The 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impersonate a client by rewriting an inner request, aka a \"KrbFastReq forgery issue.\"","status":"published","published":"2010-12-02T16:22:21.24Z","modified":"2026-10-23T17:47:46.480733545Z","updated_at":"2026-11-02T15:45:24.316685Z"},{"id":"openSUSE-SU-2024:10004-1","title":"krb5-1.15-1.1 on GA media","description":"These are all security issues fixed in the krb5-1.15-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:18:07.629761Z","updated_at":"2026-11-02T16:58:33.135986Z"}]}}