CVE-2024-52806 SimpleSAMLphp SAML2 has an XXE in parsing SAML messages
Attackers can exploit XML External Entity vulnerabilities in the SimpleSAMLphp SAML2 library to read sensitive data or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-52806?
CVE-2024-52806 is a high-severity vulnerability in simplesamlphp saml2, published on 2 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 4.6.14 and 5.0.0-alpha.18.
Weakness: CWE-611
Which versions are affected by CVE-2024-52806?
4 open source packages ship an affected version, including simplesamlphp/saml2 and simplesamlphp/saml2-legacy.
| Package | Affected | Fixed in |
|---|---|---|
simplesamlphp/saml2 Packagist | All versions | 4.6.14 |
simplesamlphp/saml2 Packagist | All versions | 4.6.14 |
simplesamlphp/saml2-legacy Packagist | All versions | 4.6.14 |
simplesamlphp/saml2-legacy Packagist | All versions | 4.6.14 |
How do I fix CVE-2024-52806?
Upgrade simplesamlphp/saml2 to 4.6.14 or later.
Is CVE-2024-52806 being exploited?
There is no known exploitation of CVE-2024-52806 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as DEBIAN-CVE-2024-52806, GHSA-pxm4-r5ph-q2m2, UBUNTU-CVE-2024-52806.