🛡️ GHSA-j5g2-q29x-cw3h — simplesamlphp (CVE-2024-52596)

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-611 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

SimpleSAMLphp vulnerable to XXE in parsing SAML messages

Withdrawn Advisory

This advisory has been withdrawn because the vulnerability affects users of the SimpleSAMLphp tarball, not the SimpleSAMLphp Composer package. The underlying information about CVE-2024-52596 is still valid.

Original Description

# Summary

When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE.

Mitigation:

Remove the LIBXML_DTDLOAD | LIBXML_DTDATTR options from $options is in: https://github.com/simplesamlphp/saml2/blob/717c0adc4877ebd58428637e5626345e59fa0109/src/SAML2/DOMDocumentFactory.php#L41

Background / details

To be published on Dec 8th

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity low, availability low.

Weakness class

GHSA-j5g2-q29x-cw3h is classified as CWE-611: XML External Entity Reference (XXE). An XML parser resolves external entities, letting a crafted document read local files or reach internal services.

Affected software

GHSA-j5g2-q29x-cw3h is recorded against 1 package.

  • simplesamlphp/simplesamlphp (fixed in 2.0.15)

Timeline and source

Published on 2 December 2024 and last revised on 4 December 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Web)
nvd.nist.gov (Advisory)
github.com (Package)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
CWE CWE-611
Public Exploit ✅ No
Source OSV
Published 2024-12-02
Updated 2026-08-20
Modified 2024-12-04
Fix URL N/A

Affected Packages

Software From version Fixed in
simplesamlphp/simplesamlphp — 2.0.15

Similar Threats

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