VDB-217652 · CVE-2012-6687 · GASA-2015-0184

FastCGI 2.4.0 Connection resource consumption

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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in FastCGI 2.4.0. The affected element is an unknown function of the component Connection Handler. Such manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2012-6687. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in FastCGI 2.4.0 and classified as problematic. Affected by this issue is an unknown functionality of the component Connection Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

FastCGI (aka fcgi and libfcgi) 2.4.0 allows remote attackers to cause a denial of service (segmentation fault and crash) via a large number of connections.

The weakness was disclosed 01/08/2023 as GASA-2015-0184. This vulnerability is handled as CVE-2012-6687 since 02/07/2015. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

The vulnerability scanner Nessus provides a plugin with the ID 83250 (Mandriva Linux Security Advisory : fcgi (MDVSA-2015:226)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (100696) and Tenable (83250). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

FastCGI

Version

2.4.0

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

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Nessus ID: 83250
Nessus Name: Mandriva Linux Security Advisory : fcgi (MDVSA-2015:226)
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/07/2015 🔍
05/05/2015 +86 days 🔍
01/08/2023 +2805 days 🔍
01/08/2023 +0 days 🔍
06/07/2024 +516 days 🔍

Sourcesinfo

Status: Confirmed

CVE: CVE-2012-6687 (🔍)
GCVE (CVE): GCVE-0-2012-6687
GCVE (VulDB): GCVE-100-217652
X-Force: 100696

Entryinfo

Created: 01/08/2023 18:24
Updated: 06/07/2024 19:51
Changes: 01/08/2023 18:24 (46), 06/07/2024 19:51 (18)
Complete: 🔍
Cache ID: 216::103