SAML traffic interception via certificate validation failure
Published Sep 10, 2024 · Updated Sep 10, 2024
Improper certificate validation in Fortinet FortiClient SAML SSO allows man-in-the-middle attackers to intercept authentication traffic. The client-side SAML SSO path does not properly validate certificates when communicating with the service provider and identity provider. Exploitation requires network positioning between the client and either SAML endpoint and exposes or permits alteration of exchanged SSO data, without reported service interruption.
Summary
What happened
Improper certificate validation in Fortinet FortiClient SAML SSO allows man-in-the-middle attackers to intercept authentication traffic. The client-side SAML SSO path does not properly validate certificates when communicating with the service provider and identity provider. Exploitation requires network positioning between the client and either SAML endpoint and exposes or permits alteration of exchanged SSO data, without reported service interruption.
The record
- CVE
- CVE-2022-45856
- Published
- Sep 10, 2024
- Updated
- Sep 10, 2024
- Vendor
- Fortinet
- Product
- FortiClient iOS
- Classifications
- CWE-295, T1557
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 10, 2024CVE publishedPublication date reported by the CVE source.
- Sep 10, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.0.0 <=2.0.1
- Affected versionversion=4.0.0 <=4.0.2
- Affected versionversion=5.0.0 <=5.0.3
- Affected versionversion=5.2.0 <=5.2.3
- Affected versionversion=5.4.0 <=5.4.1
- Affected versionversion=5.4.3 <=5.4.4
- Affected versionversion=5.6.0 <=5.6.1
- Affected versionversion=5.6.5 <=5.6.6
- Affected versionversion=6.0.0 <=6.0.1
- Affected versionversion=7.0.0 <=7.0.1
- Affected versionversion=7.0.3 <=7.0.6
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.
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo