National Cyber-Alert System
Vulnerability Summary for CVE-2013-1639
Original release date:02/08/2013
Last revised:02/08/2013
Source:
US-CERT/NIST
Overview
Opera before 12.13 does not send CORS preflight requests in all required cases, which allows remote attackers to bypass a CSRF protection mechanism via a crafted web site that triggers a CORS request.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: http://www.opera.com/support/kb/view/1045/
Type: Advisory
External Source: CONFIRM
Name: http://www.opera.com/docs/changelogs/unified/1213/
Technical Details
- Cross-Site Request Forgery (CSRF) (CWE-352)