Info

Disclosure

Jul 31, 2012

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Jul 31, 2012

Description

Google Chrome contains a flaw as the webRequest API receives certain requests made by https://chrome.google.com/webstore/. With a specially crafted extension, a context-dependent attacker can intercept requests and execute script code in the context of the Web Store page e.g. causing it to install whitelisted extensions, display nag screens, and potentially use it as a stepping stone for a sandbox bypass.

Classification

Location: Context Dependent
Attack Type: Misconfiguration
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Public
Disclosure: Vendor Verified, Coordinated Disclosure
OSVDB: Web Related

Solution

Upgrade to version 21.0.1180.57 or higher for Mac and Linux or 21.0.1180.60 or higher for Windows and Chrome Frame, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Google, Inc.

Chrome

20.0.1132.57

References

CVE ID: 2012-2853 (see also: NVD)
Secunia Advisory ID: 50105 50259 50337
Bugtraq ID: 54749
Related OSVDB ID: 84366 84367 84368 84369 84370 84371 84372 84374 84375 84376 84377 84378 84379 84380
Vendor Specific News/Changelog Entry: http://googlechromereleases.blogspot.com/2012/07/stable-channel-release.html
http://security.gentoo.org/glsa/glsa-201208-03.xml
Vendor Specific Advisory URL: http://www.srware.net/forum/viewtopic.php?f=18&t=4269
https://code.google.com/p/chromium/issues/detail?id=134101

Credit

Unknown or Incomplete

Direct URL: http://osvdb.org/84373