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Curl < 7.16.4 Expired Certificate Access Restriction Bypass

High

Synopsis

The remote host may allow access to unauthorized websites via an expired certificate.

Description

The remote host is running Curl, a download client for various protocols. This version of Curl is vulnerable to an authentication flaw in the GnuTLS certificate verification routine. An attacker exploiting this flaw would be able to use an expired certificate.

Solution

Upgrade to version 7.16.4 or higher.