Mahara up to 16.9.x/17.04.6/17.10.3 TinyMCE POST Request cross site scripting

Summaryinfo

A vulnerability classified as critical has been found in Mahara up to 16.9.x/17.04.6/17.10.3. This issue affects some unknown processing of the component TinyMCE. This manipulation as part of POST Request causes cross site scripting. This vulnerability appears as CVE-2018-6182. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mahara up to 16.9.x/17.04.6/17.10.3 (Content Management System) and classified as critical. Affected by this vulnerability is some unknown processing of the component TinyMCE. The manipulation as part of a POST Request leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Mahara 16.10 before 16.10.9 and 17.04 before 17.04.7 and 17.10 before 17.10.4 are vulnerable to bad input when TinyMCE is bypassed by POST packages. Therefore, Mahara should not rely on TinyMCE's code stripping alone but also clean input on the server / PHP side as one can create own packets of POST data containing bad content with which to hit the server.

The bug was discovered 01/24/2018. The weakness was presented 04/09/2018 (Website). The advisory is shared at bugs.launchpad.net. This vulnerability is known as CVE-2018-6182 since 01/24/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 75 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 16.10.0, 17.04.7 or 17.10.4 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Name

• Mahara

Version

• 16.0
• 16.1
• 16.2
• 16.3
• 16.4
• 16.5
• 16.6
• 16.7
• 16.8
• 16.9
• 17.04.0
• 17.04.1
• 17.04.2
• 17.04.3
• 17.04.4
• 17.04.5
• 17.04.6
• 17.10.0
• 17.10.1
• 17.10.2
• 17.10.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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CVSSv3info

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Entryinfo

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