Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 51.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/95763Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037693Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1255474Issue TrackingPatchVendor Advisory
- https://www.contextis.com//resources/blog/leaking-https-urls-20-year-old-vulneraExploitTechnical DescriptionThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-01/Vendor Advisory
- http://www.securityfocus.com/bid/95763Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037693Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1255474Issue TrackingPatchVendor Advisory
- https://www.contextis.com//resources/blog/leaking-https-urls-20-year-old-vulneraExploitTechnical DescriptionThird Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-01/Vendor Advisory
FAQ
What is CVE-2017-5384?
CVE-2017-5384 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 ...
How severe is CVE-2017-5384?
CVE-2017-5384 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-5384?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.