Improper Authorization Vulnerability in FortiClient by Fortinet
CVE-2021-36167

4.3MEDIUM

Key Information:

Vendor
Fortinet
Status
Fortinet Forticlientwindows
Vendor
CVE Published:
9 December 2021

Summary

FortiClient, developed by Fortinet, is affected by an improper authorization vulnerability that allows attackers to bypass webfilter controls. In versions 7.0.0, 6.4.6 and earlier, as well as 6.2.8 and prior, an unauthenticated attacker may exploit this flaw by modifying the session-id parameter, which poses a risk to network security. Users of these versions should update their software to mitigate potential exploitation.

Affected Version(s)

Fortinet FortiClientWindows FortiClientWindows 7.0.0, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0

References

https://fortiguard.com/advisory/FG-IR-20-127
x_refsource_CONFIRM

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.