PT-2013-1161 · Mit+4 · Mit Kerberos 5+4
Xi Wang
·
Publicado
2013-03-03
·
Atualizado
2024-06-15
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CVE-2013-1415
CVSS v2.0
8.5
Alta
| Vetor | AV:N/AC:M/Au:S/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
MIT Kerberos 5 versions 1.10.3 through 1.10.4 and 1.11.x through 1.11.1
Description
The issue is related to the PKINIT implementation in the Key Distribution Center (KDC) in MIT Kerberos 5. It does not properly handle errors during extraction of fields from an X.509 certificate, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed KRB5 PADATA PK AS REQ AS-REQ request. The vulnerability can be exploited by a remote attacker who has passed the authentication procedure, potentially leading to a violation of confidentiality, integrity, and availability of protected information.
Recommendations
For versions 1.10.3 through 1.10.4, update to version 1.10.4 or later.
For versions 1.11.x through 1.11.1, update to version 1.11.1 or later.
As a temporary workaround, consider restricting access to the
pkinit check kdc pkid function in the plugins/preauth/pkinit/pkinit crypto openssl.c file until a patch is available.Correção
DoS
NULL Pointer Dereference
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Centos
Mit Kerberos 5
Red Hat
Suse
Ubuntu