CVE-2017-7796

LOW

Description

On Windows systems, the logger run by the Windows updater deletes the file "update.log" before it runs in order to write a new log of that name. The path to this file is supplied at the command line to the updater and could be used in concert with another local exploit to delete a different file named "update.log" instead of the one intended. Note: This attack only affects Windows operating systems. Other operating systems are not affected. This vulnerability affects Firefox < 55.

References

http://www.securitytracker.com/id/1039124

https://bugzilla.mozilla.org/show_bug.cgi?id=1234401

https://www.mozilla.org/security/advisories/mfsa2017-18/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2018-08-09

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 3.3

Vector: AV:L/AC:M/Au:N/C:N/I:P/A:P

Impact Score: 4.9

Exploitability Score: 3.4

Severity: LOW

CVSS v3.0

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 1

Severity: MEDIUM