Vulnerability identifier: #VU44822

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2008-7294

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 manipulate or delete data.

Google Chrome before 4.0.211.0 cannot properly restrict modifications to cookies established in HTTPS sessions, which allows man-in-the-middle attackers to overwrite or delete arbitrary cookies via a Set-Cookie header in an HTTP response, related to lack of the HTTP Strict Transport Security (HSTS) includeSubDomains feature, aka a "cookie forcing" issue.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Google Chrome: 0.1.38.1 - 3.0.195.37

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External links
http://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_cookies
http://lists.w3.org/Archives/Public/public-webapps/2009JulSep/1148.html
http://michael-coates.blogspot.com/2010/01/cookie-forcing-trust-your-cookies-no.html
http://scarybeastsecurity.blogspot.com/2008/11/cookie-forcing.html
http://scarybeastsecurity.blogspot.com/2011/02/some-less-obvious-benefits-of-hsts.html
http://bugzilla.mozilla.org/show_bug.cgi?id=660053

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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.