Opera Web Browser up to 12.00 Small Window Download Dialog Box Display 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.
3.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Opera Web Browser. This affects an unknown part of the component Small Window Download Dialog Box Display. The manipulation leads to code injection. This vulnerability is traded as CVE-2012-4143. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Opera Web Browser (Web Browser) and classified as problematic. This issue affects an unknown functionality of the component Small Window Download Dialog Box Display. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is integrity. The summary by CVE is:

Opera before 12.01 on Windows and UNIX, and before 11.66 and 12.x before 12.01 on Mac OS X, allows user-assisted remote attackers to trick users into downloading and executing arbitrary files via a small window for the download dialog, a different vulnerability than CVE-2012-1924.

The weakness was shared 08/02/2012 by Jordi Chancel as 1027 as confirmed knowledge base article (Website). The advisory is shared at opera.com. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2012-4143 since 08/06/2012. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a private exploit is available. MITRE ATT&CK project uses the attack technique T1059 for this issue.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 62301 (GLSA-201209-11 : Opera: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

Upgrading to version 12.01 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 Tenable (62301), OSVDB (84448†), Secunia (SA50044†), SecurityTracker (ID 1027337†) and Vulnerability Center (SBV-35841†). The entries VDB-5908, VDB-5910, VDB-5911 and VDB-61946 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 62301
Nessus Name: GLSA-201209-11 : Opera: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 803002
OpenVAS Name: Opera Multiple Vulnerabilities - August12 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Web Browser 12.01

Timelineinfo

01/01/2012 🔍
08/02/2012 +214 days 🔍
08/02/2012 +0 days 🔍
08/02/2012 +0 days 🔍
08/02/2012 +0 days 🔍
08/03/2012 +1 days 🔍
08/06/2012 +3 days 🔍
08/06/2012 +0 days 🔍
08/13/2012 +7 days 🔍
08/14/2012 +1 days 🔍
03/27/2021 +3147 days 🔍

Sourcesinfo

Vendor: opera.com

Advisory: 1027
Researcher: Jordi Chancel
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-4143 (🔍)
GCVE (CVE): GCVE-0-2012-4143
GCVE (VulDB): GCVE-100-5909

OVAL: 🔍

Secunia: 50044 - Opera Multiple Vulnerabilities, Moderately Critical
OSVDB: 84448
SecurityTracker: 1027337 - Opera URL Bug Lets Remote Users Execute Arbitrary Code and Other Bugs Permit Cross-Site Scripting Attacks
Vulnerability Center: 35841 - Opera Before 12.01 Remote XSS Vulnerability (CVE-2012-4143), Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 08/13/2012 12:48
Updated: 03/27/2021 09:37
Changes: 08/13/2012 12:48 (74), 04/22/2019 10:45 (10), 03/27/2021 09:37 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!