#VU41968 Permissions, Privileges, and Access Controls in Google Chrome - CVE-2013-6666

Vulnerability identifier: #VU41968

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-6666

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Google Chrome
Client/Desktop applications / Web browsers

Vendor: Google

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The PepperFlashRendererHost::OnNavigate function in renderer/pepper/pepper_flash_renderer_host.cc in Google Chrome before 33.0.1750.146 does not verify that all headers are Cross-Origin Resource Sharing (CORS) simple headers before proceeding with a PPB_Flash.Navigate operation, which might allow remote attackers to bypass intended CORS restrictions via an inappropriate header.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Chrome: 33.0.1750.0 - 33.0.1750.136

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External links
https://googlechromereleases.blogspot.com/2014/03/stable-channel-update.html
https://www.debian.org/security/2014/dsa-2883
https://www.securityfocus.com/bid/65930
https://code.google.com/p/chromium/issues/detail?id=332023
https://src.chromium.org/viewvc/chrome?revision=249114&view=revision

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.