KLA10673 Security bypass vulnerabilties at Google Chrome

Multiple serious vulnerabilities have been found in Google Chrome. Malicious users can exploit these vulnerabilities to bypass security restrictions.

Below is a complete list of vulnerabilities

1. Improper method restrictions at Google V8 can be exploited remotely via a specially designed method call to bypass same origin policy;
2. Lack of information propagation at Blink can be exploited remotely via a specially designed HTML to bypass same origin policy.

Technical details

(1) located at object-observe.js and can be exploited via a observer or getNotifier calls.

(2) located at bindings/core/v8/V8DOMWrapper.h and caused by not performing a rethrow action about cross-context exception. Can be exploited via HTML containing IFRAME.

Original advisories

Google Chrome blog entry

Related products

Google-Chrome

CVE list

CVE-2015-1304 critical

CVE-2015-1303 critical

Solution

Update to the latest version. File with name old_chrome can be still detected after update. It caused by update policy which does not remove old versions when installing updates. Try to contact vendor for further delete instructions or ignore such kind of alerts at your own risk.

Google Chrome

Impacts

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

• Google Chrome versions earlier than 45.0.2454.101 (all branches)