Improper input validation in Microsoft Windows
CVE-2017-7796
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Microsoft Windows
- Mozilla Firefox — versions unspecified
Weakness classification (CWE)
References
- www.mozilla.org/security/advisories/mfsa2017-18/ (Vendor Advisory)
- bugzilla.mozilla.org/show_bug.cgi (Patch, Issue Tracking, Vendor Advisory)
- www.securitytracker.com/id/1039124 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-7796?
- CVE-2017-7796 is a medium-severity vulnerability in Microsoft Windows, classified under Improper Input Validation. CVSS score: 4.7/10. Published 2018-06-11.
- How severe is CVE-2017-7796?
- Medium severity. CVSS v3 base score is 4.7 out of 10.