Summary
Sendmail is prone to a security-bypass vulnerability because the application fails to properly validate the domain name in a signed CA certificate, allowing attackers to substitute malicious SSL certificates for trusted ones.
Successfully exploiting this issue allows attackers to perform man-in-the- middle attacks or impersonate trusted servers, which will aid in further attacks.
Versions prior to Sendmail 8.14.4 are vulnerable.
Solution
Updates are available. Please see the references for more information.
References
Severity
Classification
-
CVE CVE-2009-4565 -
CVSS Base Score: 7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
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