PT-2010-1031 · Sendmail+2 · Sendmail+2
Publicado
2010-01-04
·
Atualizado
2017-09-19
·
CVE-2009-4565
CVSS v2.0
7.5
Alta
| Vetor | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
sendmail versions prior to 8.14.4
Description
The issue allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority. It also allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority. This is related to the handling of a '0' character in a Common Name (CN) field of an X.509 certificate.
Recommendations
For sendmail versions prior to 8.14.4, update to version 8.14.4 or later to resolve the issue. As a temporary workaround, consider restricting the use of SSL-based SMTP servers and client certificates until a patch is applied. Avoid using crafted server or client certificates that may exploit this issue.
Correção
Encontrou algum problema na descrição? Tem algo a acrescentar? Fique à vontade para nos escrever 👾
Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Hp-Ux
Red Hat
Sendmail