CVE-2017-18122
8.1 · HIGHOverview
CVE-2017-18122 is a high-severity vulnerability affecting simplesamlphp simplesamlphp. It was published on February 2, 2018 and has a CVSS 3.0 base score of 8.1 (HIGH).
This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A signature-validation bypass issue was discovered in SimpleSAMLphp through 1.14.16. A SimpleSAMLphp Service Provider using SAML 1.1 will regard as valid any unsigned SAML response containing more than one signed assertion, provided that the signature of at least one of the assertions is valid. Attributes contained in all the assertions received will be merged and the entityID of the first assertion received will be used, allowing an attacker to impersonate any user of any IdP given an assertion signed by the targeted IdP.
Remediation
Check the references section for vendor advisories and patches from simplesamlphp. Update simplesamlphp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| simplesamlphp | simplesamlphp | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2017-18122?
CVE-2017-18122 is a high-severity vulnerability affecting simplesamlphp simplesamlphp. It was published on February 2, 2018 and has a CVSS 3.0 base score of 8.1 (HIGH).
How severe is CVE-2017-18122?
This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2017-18122?
Check the references section for vendor advisories and patches from simplesamlphp. Update simplesamlphp to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-18122?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-18122 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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