Vulnerability · Published Feb 16, 2023 · Assigned by fortinet

CVE-2021-42761

High 8.5

In plain English

A high-severity session fixation in FortiWeb from Fortinet. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)8.5High
Exploit odds (30 days)1.5%top 26.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A condition for session fixation vulnerability [CWE-384] in the session management of FortiWeb versions 6.4 all versions, 6.3.0 through 6.3.16, 6.2.0 through 6.2.6, 6.1.0 through 6.1.2, 6.0.0 through 6.0.7, 5.9.0 through 5.9.1 may allow a remote, unauthenticated attacker to infer the session identifier of other users and possibly usurp their session.

Affected products (as reported)

VendorProductVersions
Fortinet FortiWeb 6.4.0 – through 6.4.26.3.0 – through 6.3.166.2.0 – through 6.2.66.1.0 – through 6.1.26.0.0 – through 6.0.75.9.0 – through 5.9.15.8.5 – through 5.8.75.8.0 – through 5.8.3

Weakness: CWE-384 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:U/RC:C

References