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Vulnerability details: VCID-mfwu-mfhq-fkh8
Vulnerability ID VCID-mfwu-mfhq-fkh8
Aliases CVE-2017-18122
Summary Improper Verification of Cryptographic Signature A SimpleSAMLphp Service Provider using SAML 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-347 Improper Verification of Cryptographic Signature
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
There are no known severity scores.
Reference id Reference type URL
https://simplesamlphp.org/security/201710-01
CVE-2017-18122 https://nvd.nist.gov/vuln/detail/CVE-2017-18122
No exploits are available.
There are no known vectors.

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:37:30.199436+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/simplesamlphp/simplesamlphp/CVE-2017-18122.yml 38.6.0