CVE-2013-4701 PHP OpenID Library Denial of Service vulnerability

High 7.5 Published Updated

Remote attackers can read arbitrary files, access intranet servers, or cause denial of service via XML External Entity injection in the PHP OpenID Library.

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

What is CVE-2013-4701?

CVE-2013-4701 is a high-severity vulnerability in n/a, published on 21 Aug 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Auth/Yadis/XML.php in PHP OpenID Library 2.2.2 and earlier allows remote attackers to read arbitrary files, send HTTP requests to intranet servers, or cause a denial of service (CPU and memory consumption) via XRDS data containing an external entity declaration in conjunction with an entity reference, related to an XML External Entity (XXE) issue.

Which versions are affected by CVE-2013-4701?

4 open source packages ship an affected version, including openid/php-openid and typo3/cms. It affects 1 product.

PackageAffectedFixed in
openid/php-openid PackagistAll versions2.3.0
openid/php-openid PackagistAll versions2.3.0
typo3/cms PackagistFrom 6.2.06.2.6
typo3/cms PackagistFrom 6.2.06.2.6

Products include Janrain Php-Openid.

How do I fix CVE-2013-4701?

Upgrade openid/php-openid to 2.3.0 or later.

Is CVE-2013-4701 being exploited?

There is no known exploitation of CVE-2013-4701 in the wild and no public exploit code.

Sources

Also known as GHSA-5qp6-78pr-gv8c, MGASA-2013-0272.

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