Unverified X.509 Certificate Vulnerability in Cisco Web Security, Email Security, and Content Security Appliances

Unverified X.509 Certificate Vulnerability in Cisco Web Security, Email Security, and Content Security Appliances

CVE-2015-4288 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:P/A:N

The LDAP implementation on the Cisco Web Security Appliance (WSA) 8.5.0-000, Email Security Appliance (ESA) 8.5.7-042, and Content Security Management Appliance (SMA) 8.3.6-048 does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate, aka Bug IDs CSCuo29561, CSCuv40466, and CSCuv40470.

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