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PRIOn knowledge basePRION:CVE-2018-7711

HistoryMar 05, 2018 - 10:29 p.m.

Input validation

2018-03-0522:29:00

PRIOn knowledge base

www.prio-n.com

7.9 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.8%

JSON

HTTPRedirect.php in the saml2 library in SimpleSAMLphp before 1.15.4 has an incorrect check of return values in the signature validation utilities, allowing an attacker to get invalid signatures accepted as valid by forcing an error during validation. This occurs because of a dependency on PHP functionality that interprets a -1 error code as a true boolean value.

CPENameOperatorVersion
debian_linuxeq7.0
saml2ge2.0.0
saml2lt2.3.8
saml2ge3.0.0
saml2lt3.1.4
saml2ge1.0.0
saml2lt1.10.6
simplesamlphplt1.15.4

Name	Operator	Version
debian_linux	eq	7.0
saml2	ge	2.0.0
saml2	lt	2.3.8
saml2	ge	3.0.0
saml2	lt	3.1.4
saml2	ge	1.0.0
saml2	lt	1.10.6
simplesamlphp	lt	1.15.4

References

github.com/simplesamlphp/saml2/commit/4f6af7f69f29df8555a18b9bb7b646906b45924d

lists.debian.org/debian-lts-announce/2018/03/msg00017.html

simplesamlphp.org/security/201803-01