vulnwire
5.9med

CVE-2017-5384

Proxy Auto-Config (PAC) files can specify a JavaScript function called for all URL requests with the full URL path which exposes more infor…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.9
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.5%
percentile 74%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

1.47% probability of exploitation in the next 30 days, higher than 74% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD2.04.3AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Mozilla Firefox

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

  • contextis.com //resources/blog/leaking-https-urls-20-year-old-vulnerability/ · x_refsource_MISC, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1255474 · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1037693 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • mozilla.org /security/advisories/mfsa2017-01/ · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/95763 · vdb-entry, x_refsource_BID, x_transferred

Sources

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