7.5high

CVE-2017-17543

Users' VPN authentication credentials are unsafely encrypted in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 38%
Public exploits
0
none known

Summary

Users' VPN authentication credentials are unsafely encrypted in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for Mac OSX 5.6.0 and below versions and FortiClient SSLVPN Client for Linux 4.4.2335 and below versions, due to the use of a static encryption key and weak encryption algorithms.

CISA SSVC assessment

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction (EPSS)

0.44% probability of exploitation in the next 30 days, higher than 38% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Fortinet, Inc. FortiClient for Windows
  • Fortinet, Inc. FortiClient for Mac OSX
  • Fortinet, Inc. FortiClient SSLVPN Client for Linux

Classification

Weakness
  • CWE-326 Inadequate Encryption Strength
Technology feeds
Fortinet (RSS, critical only)

References

  • fortiguard.com /advisory/FG-IR-17-214 · 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.