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cURL / libcURL 7.x < 7.42.1 Proxied Traffic HTTP Server Header Remote Disclosure

Medium

Synopsis

The cURL program is a library and command-line tool for transferring data using various protocols, including HTTP, FTP, and LDAP. A vulnerable version of cURL was detected from the host.

Description

cURL and libcurl before 7.42.0 are unpatched for a flaw due to the program transmitting sensitive HTTP server headers within proxied traffic to the server allowing a remote attacker, with access to the proxy, to gain access to potentially sensitive information.

Solution

Upgrade to cURL/libcURL 7.42.1 or later.