FortiMail Webmail Auth Bypass (CWE-863) v6.4.7-7.2.2 via crafted HTTP
CVE-2023-36556 Published on October 10, 2023
An incorrect authorization vulnerability [CWE-863] in FortiMail webmail version 7.2.0 through 7.2.2, version 7.0.0 through 7.0.5 and below 6.4.7 allows an authenticated attacker to login on other users accounts from the same web domain via crafted HTTP or HTTPs requests.
Vulnerability Analysis
CVE-2023-36556 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2023-36556 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2023-36556
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Affected Versions
Fortinet FortiMail:- Version 7.2.0, <= 7.2.2 is affected.
- Version 7.0.0, <= 7.0.5 is affected.
- Version 6.4.0, <= 6.4.7 is affected.
- Version 6.2.0, <= 6.2.9 is affected.
- Version 6.0.0, <= 6.0.12 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.