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cvelistMitreCVELIST:CVE-2017-18122
HistoryFeb 02, 2018 - 3:00 p.m.

CVE-2017-18122

2018-02-0215:00:00
mitre
www.cve.org

8.7 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

64.5%

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.

8.7 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

64.5%