Opera Web Browser 12.00 up to 12.12 CORS Request Parser code injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.

A vulnerability, which was classified as critical, has been found in Opera Web Browser 12.00 up to 12.12 (Web Browser). Affected by this issue is an unknown code of the component CORS Request Parser. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-94. Impacted is confidentiality, and integrity.

The weakness was presented 01/30/2013 by Arthur Gerkis with iSIGHT as not defined advisory (Website). The advisory is shared for download at opera.com. The public release was coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2013-1637 since 02/08/2013. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but an exploit is available.

It is declared as proof-of-concept. The exploit is available at exploit-db.com. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 64363 (Opera < 12.13 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context local.

Upgrading to version 12.13 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 57633), Secunia (SA52005) and Tenable (64363). See 7506, 7507, 7509 and 63527 for similar entries.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Privilege escalation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 64363
Nessus Name: Opera < 12.13 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 803310
OpenVAS Name: Opera Multiple Vulnerabilities -01 Feb 13 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍


Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Web Browser 12.13


01/30/2013 🔍
01/30/2013 +0 days 🔍
01/30/2013 +0 days 🔍
01/30/2013 +0 days 🔍
02/01/2013 +2 days 🔍
02/08/2013 +7 days 🔍
02/08/2013 +0 days 🔍
05/04/2021 +3007 days 🔍


Vendor: https://www.opera.com/

Advisory: opera.com
Researcher: Arthur Gerkis
Organization: iSIGHT
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-1637 (🔍)

SecurityFocus: 57633 - Opera Web Browser Prior to 12.13 Multiple Security Vulnerabilities
Secunia: 52005 - Opera Multiple Vulnerabilities, Highly Critical
OSVDB: 89616

See also: 🔍


Created: 02/01/2013 10:54 AM
Updated: 05/04/2021 08:06 AM
Changes: (3) source_exploitdb exploit_price_0day vulnerability_cvss2_nvd_basescore
Complete: 🔍


No comments yet. Please log in to comment.

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!