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GHSA-xqcf-vgqc-pcmgcritical9.1

Moodle blind Server-Side Request Forgery (SSRF) vulnerability in LTI provider library

Impact

A blind Server-Side Request Forgery (SSRF) vulnerability was found in Moodle. This flaw exists due to insufficient validation of user-supplied input in LTI provider library. The library does not utilise Moodle's inbuilt cURL helper, which resulted in a blind SSRF risk. An attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems. This vulnerability allows a remote attacker to perform SSRF attacks.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

moodle/moodle Packagist
Affected rangeRecorded fix
From 3.9 before 3.9.18Ecosystem versions3.9.18
From 3.11 before 3.11.11Ecosystem versions3.11.11
From 4.0 before 4.0.5Ecosystem versions4.0.5

Version evidence: OSV · GHSA-xqcf-vgqc-pcmg

View original version evidence (46 explicit versions)

Original source description

A blind Server-Side Request Forgery (SSRF) vulnerability was found in Moodle. This flaw exists due to insufficient validation of user-supplied input in LTI provider library. The library does not utilise Moodle's inbuilt cURL helper, which resulted in a blind SSRF risk. An attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems. This vulnerability allows a remote attacker to perform SSRF attacks.

References