CVE-2021-41025

HIGH

FortiWeb 6.0.0-6.0.7, 6.1.0-6.1.2, 6.2.0-6.2.6, 6.3.0-6.3.15, 6.4.0-6.4.1 - Authentication Bypass via Capture-Replay

Title source: llm
STIX 2.1

Description

Multiple vulnerabilities in the authentication mechanism of confd in FortiWeb versions 6.4.1, 6.4.0, 6.3.0 through 6.3.15, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 thorugh 6.0.7, including an instance of concurrent execution using shared resource with improper synchronization and one of authentication bypass by capture-replay, may allow a remote unauthenticated attacker to circumvent the authentication process and authenticate as a legitimate cluster peer.

References (1)

Core 1
Core References
Patch, Vendor Advisory x_refsource_confirm
https://fortiguard.com/advisory/FG-IR-21-130

Scores

CVSS v3 7.3
EPSS 0.0025
EPSS Percentile 48.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-362
Status published
Products (7)
fortinet/fortiweb 6.1.0
fortinet/fortiweb 6.1.1
fortinet/fortiweb 6.1.2
fortinet/fortiweb 6.4.0
fortinet/fortiweb 6.4.1
fortinet/fortiweb 6.4.2
fortinet/fortiweb 6.0.0 - 6.0.7
Published Dec 08, 2021
Tracked Since Feb 18, 2026