CVE-2017-1000071 Auth bypass in n/a

High 8.1 Published Updated

An authentication bypass in phpCAS allows attackers to bypass validation when configured against old CAS servers, requiring an upgrade to secure the application.

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

What is CVE-2017-1000071?

CVE-2017-1000071 is a high-severity authentication bypass vulnerability in n/a, published on 13 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Jasig phpCAS version 1.3.4 is vulnerable to an authentication bypass in the validateCAS20 function when configured to authenticate against an old CAS server.

Weakness: CWE-287

Which versions are affected by CVE-2017-1000071?

It affects 1 product.

Products include Apereo Phpcas.

How do I fix CVE-2017-1000071?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2017-1000071 being exploited?

There is no known exploitation of CVE-2017-1000071 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2017-1000071, GHSA-fwrj-8jg7-7jr6, UBUNTU-CVE-2017-1000071.

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