Opera Web Browser up to 11.01 on Windows HTTP HTTP Replies/Redirects memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

A vulnerability was found in Opera Web Browser up to 11.01 on Windows (Web Browser). It has been rated as very critical. This issue affects some unknown functionality of the component HTTP Handler. The manipulation as part of a HTTP Replies/Redirects leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The downloads manager in Opera before 11.01 on Windows does not properly determine the pathname of the filesystem-viewing application, which allows user-assisted remote attackers to execute arbitrary code via a crafted web site that hosts an executable file.

The weakness was published 01/26/2011 by Jordi Chancel with Opera (Website). The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2011-0450 since 01/14/2011. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/18/2021).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 51774 (Opera < 11.01 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118943 (Opera Web Browser Prior to 11.01 Multiple Vulnerabilities).

Upgrading to version 11.01 eliminates this vulnerability. A possible mitigation has been published 1 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (51774). Similar entries are available at 4263, 4264, 4267 and 4266.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 51774
Nessus Name: Opera < 11.01 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 68952
OpenVAS Name: FreeBSD Ports: opera, opera-devel, linux-opera
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Web Browser 11.01

Timelineinfo

01/14/2011 🔍
01/21/2011 +7 days 🔍
01/26/2011 +5 days 🔍
01/27/2011 +1 days 🔍
01/27/2011 +0 days 🔍
01/31/2011 +4 days 🔍
02/02/2011 +2 days 🔍
02/14/2011 +11 days 🔍
03/18/2021 +3685 days 🔍

Sourcesinfo

Vendor: opera.com

Advisory: jvn.jp
Researcher: Jordi Chancel
Organization: Opera
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-0450 (🔍)
OVAL: 🔍

SecurityFocus: 45951 - Opera Web Browser 'Select' HTML Element Integer Overflow Vulnerability
Secunia: 43023 - Opera Multiple Vulnerabilities, Highly Critical
OSVDB: 70726 - Opera on Windows Downloads Manager Filesystem Viewing Application Pathname Verification Weakness Arbitrary Code Execution
Vupen: ADV-2011-0231

See also: 🔍

Entryinfo

Created: 02/14/2011 15:25
Updated: 03/18/2021 17:05
Changes: 02/14/2011 15:25 (74), 04/22/2019 10:52 (9), 03/18/2021 17:00 (7), 03/18/2021 17:05 (2)
Complete: 🔍

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