Apache HTTP Server up to 2.2 mod_proxy_balancer balancer_handler bb resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Apache HTTP Server up to 2.2. It has been rated as problematic. Impacted is the function balancer_handler of the component mod_proxy_balancer. The manipulation of the argument bb leads to resource management. This vulnerability is uniquely identified as CVE-2007-6422. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.2 (Web Server) and classified as problematic. This issue affects the function balancer_handler of the component mod_proxy_balancer. The manipulation of the argument bb with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is integrity, and availability. The summary by CVE is:

The balancer_handler function in mod_proxy_balancer in the Apache HTTP Server 2.2.0 through 2.2.6, when a threaded Multi-Processing Module is used, allows remote authenticated users to cause a denial of service (child process crash) via an invalid bb variable.

The bug was discovered 01/04/2008. The weakness was disclosed 01/08/2008 by sp3x (Website). The advisory is shared at redhat.com. The identification of this vulnerability is CVE-2007-6422 since 12/17/2007. The exploitation is known to be easy. The attack may be initiated remotely. The successful exploitation requires a simple authentication. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 31118 (Apache 2.2.x < 2.2.8 Multiple Vulnerabilities (XSS, DoS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Web Servers and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165680 (SUSE Enterprise Linux Security Update Apache,Apache2 Security Problems (SUSE-SA:2008:021)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (39476), Tenable (31118), SecurityFocus (BID 27236†), OSVDB (40264†) and Secunia (SA28526†). The entries VDB-4582, VDB-4583, VDB-7810 and VDB-8308 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

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Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
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: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 31118
Nessus Name: Apache 2.2.x < 2.2.8 Multiple Vulnerabilities (XSS, DoS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 60388
OpenVAS Name: Slackware Advisory SSA:2008-045-01 httpd
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2007 🔍
01/04/2008 +18 days 🔍
01/04/2008 +0 days 🔍
01/08/2008 +4 days 🔍
01/08/2008 +0 days 🔍
01/09/2008 +1 days 🔍
01/13/2008 +4 days 🔍
02/20/2008 +38 days 🔍
03/16/2015 +2581 days 🔍
08/03/2019 +1601 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: redhat.com
Researcher: sp3x
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-6422 (🔍)
GCVE (CVE): GCVE-0-2007-6422
GCVE (VulDB): GCVE-100-40397

OVAL: 🔍

X-Force: 39476
SecurityFocus: 27236 - Apache 'mod_proxy_balancer' Multiple Vulnerabilities
Secunia: 28526
OSVDB: 40264 - Apache mod_proxy_balancer balancer_handler function denial of service
Vulnerability Center: 17312 - Apache HTTP Server 2.2.0 - 2.2.6 Remote Users Can Cause Denial of Service via a Crafted Request, Medium
Vupen: ADV-2008-0048

See also: 🔍

Entryinfo

Created: 03/16/2015 13:43
Updated: 08/03/2019 10:14
Changes: 03/16/2015 13:43 (67), 08/03/2019 10:14 (17)
Complete: 🔍
Cache ID: 216::103

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

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