CVE-2016-5295
This vulnerability allows an attacker to use the Mozilla Maintenance Service to escalate privilege by having the Maintenance Service invoke the Mozilla Updater to run malicious local files.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
This vulnerability allows an attacker to use the Mozilla Maintenance Service to escalate privilege by having the Maintenance Service invoke the Mozilla Updater to run malicious local files. This vulnerability requires local system access and is a variant of MFSA2013-44. Note: this issue only affects Windows operating systems. This vulnerability affects Firefox < 50.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.33% probability · 26th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-264
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- http://www.securityfocus.com/bid/94337Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037298Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1247239Issue Tracking, Vendor Advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2013-44/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-89/Vendor Advisory
- http://www.securityfocus.com/bid/94337Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037298Third Party Advisory, VDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1247239Issue Tracking, Vendor Advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2013-44/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2016-89/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.