CVE-2017-5384

Source
Severity Medium
Remote Yes
Type Information disclosure
Description
Proxy Auto-Config (PAC) files in Firefox < 51 can specify a JavaScript function called for all URL requests with the full URL path which exposes more information than would be sent to the proxy itself in the case of HTTPS. Normally the Proxy Auto-Config file is specified by the user or machine owner and presumed to be non-malicious, but if a user has enabled Web Proxy Auto Detect (WPAD) this file can be served remotely.
Group Package Affected Fixed Severity Status Ticket
AVG-157 firefox 50.1.0-1 51.0.1-1 Critical Fixed
Date Advisory Group Package Severity Description
29 Jan 2017 ASA-201701-39 AVG-157 firefox Critical multiple issues
References
https://www.mozilla.org/en-US/security/advisories/mfsa2017-01/#CVE-2017-5384
https://bugzilla.mozilla.org/show_bug.cgi?id=1255474