Improper input validation in F-Secure Software Updater

CVE-2017-6466

F-Secure Software Updater 2.20, as distributed in several F-Secure products, downloads installation packages over plain http and does not perform file integrity validation after download. Man-in-the-middle attackers can replace the file with their own executable which will be executed under the SYSTEM account. Note that when Software Updater is configured to install updates automatically, it checks if the downloaded file is digitally signed by default, but does not check the author of the signature. When running in manual mode (default), no signature check is performed.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.015 (72.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (Mailing List, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2017-6466?
CVE-2017-6466 is a high-severity vulnerability in F-Secure Software Updater, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2017-03-11.
How severe is CVE-2017-6466?
High severity. CVSS v3 base score is 8.1 out of 10.