What is CVE-2018-7711?

CVE-2018-7711 is a high-severity vulnerability in Simplesamlphp Saml2, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.1/10. Published 2018-03-05.

How severe is CVE-2018-7711?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Simplesamlphp Saml2

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 attacker to get invalid signatures accepted as valid by forcing an error during…

EPSS: 0.012 (64.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Simplesamlphp Saml2
Simplesamlphp
Debian Debian_linux — versions 7.0
N/a — versions n/a

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

cve@mitre.org (x_refsource_CONFIRM, Patch)
cve@mitre.org (mailing-list, x_refsource_MLIST, Third Party Advisory)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-7711?: CVE-2018-7711 is a high-severity vulnerability in Simplesamlphp Saml2, classified under Improper Verification of Cryptographic Signature. CVSS score: 8.1/10. Published 2018-03-05.
How severe is CVE-2018-7711?: High severity. CVSS v3 base score is 8.1 out of 10.