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FreeBSD: krb5 -- client impersonation vulnerability (CVE-2010-4021)

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FreeBSD: krb5 -- client impersonation vulnerability (CVE-2010-4021)

Severity
2
CVSS
(AV:N/AC:H/Au:S/C:N/I:P/A:N)
Published
12/02/2010
Created
07/25/2018
Added
05/08/2014
Modified
06/06/2016

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."

Solution(s)

  • freebsd-upgrade-package-krb5

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