Mozilla Necko information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Necko. It has been classified as problematic. The impacted element is an unknown function. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2009-4630. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mozilla Necko (Web Browser) (unknown version). This issue affects an unknown code block. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

Mozilla Necko, as used in Firefox, SeaMonkey, and other applications, performs DNS prefetching of domain names contained in links within local HTML documents, which makes it easier for remote attackers to determine the network location of the application's user by logging DNS requests. NOTE: the vendor disputes the significance of this issue, stating "I don't think we necessarily need to worry about that case."

The weakness was disclosed 01/29/2010 as Bug 492196 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.mozilla.org. The identification of this vulnerability is CVE-2009-4630 since 01/29/2010. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Vulnerability Center (SBV-27902†). The entry VDB-51706 is pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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OpenVAS ID: 800454
OpenVAS Name: Mozilla Products Information Disclosure Vulnerability (Win)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/29/2010 🔍
01/29/2010 +0 days 🔍
01/29/2010 +0 days 🔍
01/29/2010 +0 days 🔍
10/26/2010 +270 days 🔍
03/18/2015 +1604 days 🔍
04/29/2026 +4060 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: Bug 492196
Status: Not defined

CVE: CVE-2009-4630 (🔍)
GCVE (CVE): GCVE-0-2009-4630
GCVE (VulDB): GCVE-100-51707
Vulnerability Center: 27902 - Mozilla Necko in Firefox and SeaMonkey Remote Information Disclosure Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 04/29/2026 18:14
Changes: 03/18/2015 15:15 (51), 03/08/2017 21:18 (7), 04/29/2026 18:14 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

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