vulnwire
5.5med

CVE-2017-7767

The Mozilla Maintenance Service can be invoked by an unprivileged user to overwrite arbitrary files with junk data using the Mozilla Window…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.3%
percentile 20%
Public exploits
0
none known

The Mozilla Maintenance Service can be invoked by an unprivileged user to overwrite arbitrary files with junk data using the Mozilla Windows Updater, which runs with the Maintenance Service's privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.

Exploit prediction (EPSS)

0.28% probability of exploitation in the next 30 days, higher than 20% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD2.02.1AV:L/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • Mozilla Firefox ESR
  • Mozilla Firefox

Classification

Weakness
  • CWE-269 Improper Privilege Management

References

  • securityfocus.com /bid/99057 · vdb-entry, x_refsource_BID, x_transferred
  • mozilla.org /security/advisories/mfsa2017-15/ · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1038689 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1336964 · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/advisories/mfsa2017-16/ · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.