CVE-2020-5301 Information

Description

SimpleSAMLphp versions before 1.18.6 contain an information disclosure vulnerability. The module controller in SimpleSAML\\Module that processes requests for pages hosted by modules has code to identify paths ending with .php and process those as PHP code. If no other suitable way of handling the given path exists it presents the file to the browser. The check to identify paths ending with .php does not account for uppercase letters. If someone requests a path ending with e.g. .PHP and the server is serving the code from a case-insensitive file system such as on Windows the processing of the PHP code does not occur and the source code is instead presented to the browser. An attacker may use this issue to gain access to the source code in third-party modules that is meant to be private or even sensitive. However the attack surface is considered small as the attack will only work when SimpleSAMLphp serves such content from a file system that is not case-sensitive such as on Windows. This issue is fixed in version 1.18.6.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Reference

https://github.com/simplesamlphp/simplesamlphp/commit/47968d26a2fd3ed52da70dc09210921d612ce44e https://github.com/simplesamlphp/simplesamlphp/security/advisories/GHSA-24m3-w8g9-jwpq

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

3.1