National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-5384 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.9 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 2.2


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 v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/95763 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037693 Third Party Advisory VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1255474 Issue Tracking Patch Vendor Advisory
https://www.contextis.com//resources/blog/leaking-https-urls-20-year-old-vulnerability/ Exploit Technical Description Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-01/ Vendor Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
51.0


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-5384
NVD Published Date:
06/11/2018
NVD Last Modified:
08/07/2018