Published: 11/06/2018 Updated: 07/08/2018

CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6

CVSS v3 Base Score: 5.9 | Impact Score: 3.6 | Exploitability Score: 2.2

VMScore: 383

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Proxy Auto-Config (PAC) files 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. This vulnerability affects Firefox < 51.

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mozilla firefox

Firefox could be made to crash or run programs as your login if it opened a malicious website ...

USN-3175-1 introduced a regression in Firefox ...

Mozilla Foundation Security Advisory 2017-01 Security vulnerabilities fixed in Firefox 51 Announced January 24, 2017 Impact critical Products Firefox Fixed in Firefox 51 ...

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 use ...

CWE-200 https://www.mozilla.org/security/advisories/mfsa2017-01/https://www.contextis.com//resources/blog/leaking-https-urls-20-year-old-vulnerability/https://bugzilla.mozilla.org/show_bug.cgi?id=1255474 http://www.securitytracker.com/id/1037693 http://www.securityfocus.com/bid/95763 https://nvd.nist.gov https://usn.ubuntu.com/3175-1/

CVE-2017-5384

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