CVE-2016-9814 SimpleSAMLphp SAML2 spoof SAML responses

Critical 9.1 Published Updated

Remote attackers can spoof SAML responses or cause denial of service via improper boolean conversion in SimpleSAMLphp and saml2 libraries.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2016-9814?

CVE-2016-9814 is a critical vulnerability in n/a, published on 16 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The validateSignature method in the SAML2\Utils class in SimpleSAMLphp before 1.14.10 and simplesamlphp/saml2 library before 1.9.1, 1.10.x before 1.10.3, and 2.x before 2.3.3 allows remote attackers to spoof SAML responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.

Weakness: CWE-399

Which versions are affected by CVE-2016-9814?

8 open source packages ship an affected version, including simplesamlphp/saml2. It affects 2 products.

PackageAffectedFixed in
simplesamlphp/saml2 PackagistAll versions1.8.1
simplesamlphp/saml2 PackagistAll versions1.8.1
simplesamlphp/saml2 PackagistFrom 1.101.10.3
simplesamlphp/saml2 PackagistFrom 1.101.10.3
simplesamlphp/saml2 PackagistFrom 1.9.01.9.1
simplesamlphp/saml2 PackagistFrom 1.9.01.9.1
2 more packages
simplesamlphp/saml2 PackagistFrom 2.02.3.3
simplesamlphp/saml2 PackagistFrom 2.02.3.3

Products include Simplesamlphp Saml2, Simplesamlphp Simplesamlphp.

How do I fix CVE-2016-9814?

Upgrade simplesamlphp/saml2 to a fixed version for your release line: 1.8.1, 1.10.3, 1.9.1 or 2.3.3.

Is CVE-2016-9814 being exploited?

There is no known exploitation of CVE-2016-9814 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2016-9814, GHSA-r8v4-7vwj-983x, UBUNTU-CVE-2016-9814.

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