Opera Multiple Vulnerabilities

SA51183

CVE-2012-6462, CVE-2012-6463, CVE-2012-6464, CVE-2012-6465, CVE-2012-6466

06 Nov 2012

17 Jan 2013

Highly Critical

Vendor Patch

Opera 12.x

From remote

System access

This covers vulnerabilities where malicious people are able to gain system access and execute arbitrary code with the privileges of a local user.

Cross-Site Scripting

Cross-Site Scripting vulnerabilities allow a third party to manipulate the content or behaviour of a web application in a user's browser, without compromising the underlying system.

Different Cross-Site Scripting related vulnerabilities are also classified under this category, including "script insertion" and "cross-site request forgery".

Cross-Site Scripting vulnerabilities are often used against specific users of a website to steal their credentials or to conduct spoofing attacks.

Security Bypass

This covers vulnerabilities or security issues where malicious users or people can bypass certain security mechanisms of the application.

The actual impact varies significantly depending on the design and purpose of the affected application.

Unknown

Covers various weaknesses, security issues, and vulnerabilities not covered by the other impact types, or where the impact isn't known due to insufficient information from vendors and researchers.

Multiple vulnerabilities have been reported in Opera, where some have unknown impacts and other can be exploited by malicious people to conduct cross-site scripting attacks, bypass certain security restrictions, and compromise a user's system.

1) An unspecified error when handling CORS (Cross-Origin Resource Sharing) requests can be exploited to bypass the same origin policy and e.g. disclose sensitive information from another domain.

2) An error when handling Data URIs can be exploited to conduct cross-site scripting attacks.

3) An unspecified error exists. No further information if currently available.

4) An error when handling SVG images can be exploited to execute arbitrary code.

5) Another unspecified error exists. No further information if currently available.

The vulnerabilities are reported in versions prior to 12.10.

Update to version 12.10.

1) Reported by the vendor.
2) The vendor credits multiple people.
3) The vendor credits Gareth Heyes.
4) The vendor credits Attila Suszter.
5) The vendor credits the Google Security Group.

http://www.opera.com/docs/changelogs/unified/1210/
http://www.opera.com/support/kb/view/1030/
http://www.opera.com/support/kb/view/1031/
http://www.opera.com/support/kb/view/1033/