Information disclosure via certificate hostname mismatch
Published Jul 18, 2022 · Updated Oct 22, 2024
Improper certificate validation in FortiToken Mobile 5.0.3 and earlier allows remote attackers to disclose information via man-in-the-middle attacks. The client accepts certificates whose host name does not match the validation server, enabling an attacker on the adjacent network to impersonate that server and intercept protected exchanges. Exploitation requires a man-in-the-middle position and user interaction; the documented impact is information disclosure without integrity impact.
Summary
What happened
Improper certificate validation in FortiToken Mobile 5.0.3 and earlier allows remote attackers to disclose information via man-in-the-middle attacks. The client accepts certificates whose host name does not match the validation server, enabling an attacker on the adjacent network to impersonate that server and intercept protected exchanges. Exploitation requires a man-in-the-middle position and user interaction; the documented impact is information disclosure without integrity impact.
The record
- CVE
- CVE-2021-22131
- Published
- Jul 18, 2022
- Updated
- Oct 22, 2024
- Vendor
- Fortinet
- Product
- FortiToken Mobile
- Classifications
- CWE-297, T1557
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 18, 2022CVE publishedPublication date reported by the CVE source.
- Oct 22, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=FortiTokenAndroid 5.0.3, 5.0.2, 4.5.0, 4.4.0, 4.3.0, 4.2.2, 4.2.1, 4.1.1, 4.0.1, 4.0.0, 3.0.4, 3.0.3, 3.0.2, 3.0.1, 3.0.0, 0.4.20, 0.4.10, FortiTokeniOS 5.2.0, 4.3.0, 4.2.0, 4.1.1, 3.0.5, 3.0.4, 3.0.3, 3.0.2, 3.0.1, FortiTokenWinApp 4.0.3, 3.0.1, 3.0.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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