ATutor up to 2.2.1 create_course.php icon path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in ATutor up to 2.2.1. The affected element is an unknown function of the file /mods/_core/courses/users/create_course.php. Performing a manipulation of the argument icon results in path traversal. This vulnerability is known as CVE-2016-10400. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in ATutor up to 2.2.1 (Learning Management Software). This affects an unknown functionality of the file /mods/_core/courses/users/create_course.php. The manipulation of the argument icon with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Directory Traversal exists in ATutor before 2.2.2 via the icon parameter to /mods/_core/courses/users/create_course.php. The attacker can read an arbitrary file by visiting get_course_icon.php?id= after the traversal attack.

The bug was discovered 02/24/2016. The weakness was published 07/22/2017 (Website). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2016-10400 since 07/22/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 514 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:mods/_core/courses/users/create_course.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.2.2 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Learning Management Software

Name

• ATutor

Version

• 2.2.0
• 2.2.1

License

• free

Website

• Product: https://github.com/atutor/ATutor/

CPE 2.3info

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CPE 2.2info

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• 🔍

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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