Comodo Chromodo browser, version 18.104.22.1681, and possibly earlier, bundles the Ad Sanitizer extension, version 22.214.171.124, which disables the same origin policy, allowing for the possibility of cross-domain attacks by malicious or compromised web hosts. Chromodo is based on an outdated release of Chromium with known vulnerabilities.
Comodo Chromodo is a web browser that comes packaged with Comodo Internet Security. It is based on Chromium 45.0.2454.93, which was released in September 2015. By default, the browser uses the Ad Sanitizer extension by AdtrustMedia, which disables same origin protections and allows for an attacker to access a victim user's web content from other domains via a specially crafted web page.
According to the original disclosure by the Project Zero team at Google, version 126.96.36.1992 was released to address attacks based on the use of execCode. Version 188.8.131.522 appears to remove Ad Sanitizer.
By convincing a user to visit a specially crafted web page, an attacker can obtain access to web content from another domain.
The CERT/CC is currently unaware of a practical solution to this problem and recommends the following workarounds.
Disable or remove Ad Sanitizer
The CERT/CC acknowledges Tavis Ormandy of the Project Zero team at Google for disclosing this issue.
This document was written by Joel Land.
|Date First Published:||2016-02-04|
|Date Last Updated:||2016-02-08 19:09 UTC|