CVE-2018-7711

published 2018-03-05

CVE-2018-7711: 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…

Priority P3 41 high 8.1 CVSS 3.0

AV N AC H PR N UI N S U C H I H A H

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.

Affected

11 ranges

Vendor	Product	Version range	Fixed in
debian	debian_linux	—	—
debian	simplesamlphp	< simplesamlphp 1.15.4-1 (bookworm)	simplesamlphp 1.15.4-1 (bookworm)
simplesamlphp	saml2	>= 0 < 1.10.6	1.10.6
simplesamlphp	saml2	>= 1.0.0 < 1.10.6	1.10.6
simplesamlphp	saml2	>= 2.0 < 2.3.8	2.3.8
simplesamlphp	saml2	>= 2.0.0 < 2.3.8	2.3.8
simplesamlphp	saml2	>= 3.0 < 3.1.4	3.1.4
simplesamlphp	saml2	>= 3.0.0 < 3.1.4	3.1.4
simplesamlphp	simplesamlphp	< 1.15.4	1.15.4
simplesamlphp	simplesamlphp	>= 0 < 1.15.4-1	1.15.4-1
simplesamlphp	simplesamlphp	>= 0 < 1.15.4-1	1.15.4-1

CVSS provenance

nvd v3.0 8.1 HIGH CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 6.8 MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P

osv 8.1 HIGH

vendor_debian 8.1 HIGH

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CWE-347