Opera Web Browser up to 8.54 Internationalized Domain Name authentication spoofing

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Opera Web Browser. Affected is an unknown function of the component Internationalized Domain Name. Such manipulation leads to authentication spoofing. This vulnerability is documented as CVE-2009-3049. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Opera Web Browser (Web Browser). It has been rated as critical. Affected by this issue is an unknown code block of the component Internationalized Domain Name. The manipulation with an unknown input leads to a authentication spoofing vulnerability. Using CWE to declare the problem leads to CWE-290. This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. Impacted is integrity. CVE summarizes:

Opera before 10.00 does not properly display all characters in Internationalized Domain Names (IDN) in the address bar, which allows remote attackers to spoof URLs and conduct phishing attacks, related to Unicode and Punycode.

The weakness was released 09/02/2009 by Dan Kaminsky with Casaba Security (Website). The advisory is shared for download at opera.com. This vulnerability is handled as CVE-2009-3049. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 59631 (GLSA-201206-03 : 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 116594 (Opera Web Browser Prior to 10.00 Multiple Security Vulnerabilities).

Upgrading to version 9.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (52961), Tenable (59631), SecurityFocus (BID 36202†) and Vulnerability Center (SBV-23421†). Entries connected to this vulnerability are available at VDB-4967, VDB-4968, VDB-4969 and VDB-4970. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Authentication spoofing
CWE: CWE-290 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 59631
Nessus Name: GLSA-201206-03 : Opera: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 800888
OpenVAS Name: Opera Multiple URL Spoofing Vulnerabilities - Sep09 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Browser 9.0

Timelineinfo

09/01/2009 🔍
09/01/2009 +0 days 🔍
09/02/2009 +0 days 🔍
09/02/2009 +0 days 🔍
09/02/2009 +0 days 🔍
09/08/2009 +6 days 🔍
03/18/2015 +2017 days 🔍
03/08/2025 +3643 days 🔍

Sourcesinfo

Vendor: opera.com

Advisory: opera.com
Researcher: Dan Kaminsky
Organization: Casaba Security
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-3049 (🔍)
GCVE (CVE): GCVE-0-2009-3049
GCVE (VulDB): GCVE-100-49796

OVAL: 🔍

X-Force: 52961
SecurityFocus: 36202 - Opera Web Browser prior to 10 Multiple Security Vulnerabilities
Vulnerability Center: 23421 - Opera \x3C 10.00 Incorrect Display of IDN in Address Bar Allows Remote Spoofing Attacks, Medium

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 03/08/2025 17:28
Changes: 03/18/2015 15:15 (60), 02/13/2017 16:55 (10), 08/21/2021 00:02 (4), 08/21/2021 00:11 (1), 03/08/2025 17:28 (19)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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