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CVE-2017-5384

Date: June 11, 2018

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.

Language: Unix

Severity Score

Related Resources (8)

http://www.securityfocus.com/bid/95763
https://nvd.nist.gov/vuln/detail/CVE-2017-5384
https://bugzilla.mozilla.org/show_bug.cgi?id=1255474
https://www.mozilla.org/security/advisories/mfsa2017-01/
http://www.securitytracker.com/id/1037693
https://www.contextis.com//resources/blog/leaking-https-urls-20-year-old-vulnerability/
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-5384
https://www.mend.io/vulnerability-database/CVE-2017-5384

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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