Zend Engine up to 2.2.1a mod_cluster memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Zend Engine up to 2.2.1a. The impacted element is an unknown function of the component mod_cluster. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2006-4431. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Zend Engine up to 2.2.1a. This affects an unknown functionality of the component mod_cluster. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Multiple buffer overflows in the (a) Session Clustering Daemon and the (b) mod_cluster module in the Zend Platform 2.2.1 and earlier allow remote attackers to cause a denial of service (crash) or execute arbitrary code via a (1) empty or (2) crafted PHP session identifier (PHPSESSID).

The bug was discovered 08/21/2006. The weakness was presented 08/25/2006 by Stefan Esser with Hardened PHP Project (Website). The advisory is shared at hardened-php.net. This vulnerability is uniquely identified as CVE-2006-4431 since 08/28/2006. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly 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 $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 22273 (Zend Session Clustering Daemon PHP Session Identifier Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely and running in the context r.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at zend.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (28571), Tenable (22273), SecurityFocus (BID 19692†), OSVDB (28230†) and Secunia (SA21573†). See VDB-2492, VDB-32001, VDB-32000 and VDB-84506 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

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Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 22273
Nessus Name: Zend Session Clustering Daemon PHP Session Identifier Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: zend.com

Timelineinfo

08/21/2006 🔍
08/24/2006 +3 days 🔍
08/24/2006 +0 days 🔍
08/25/2006 +1 days 🔍
08/25/2006 +0 days 🔍
08/25/2006 +0 days 🔍
08/28/2006 +2 days 🔍
08/28/2006 +0 days 🔍
08/29/2006 +1 days 🔍
08/29/2006 +0 days 🔍
09/04/2006 +6 days 🔍
06/24/2019 +4676 days 🔍

Sourcesinfo

Advisory: hardened-php.net
Researcher: Stefan Esser
Organization: Hardened PHP Project
Status: Not defined

CVE: CVE-2006-4431 (🔍)
GCVE (CVE): GCVE-0-2006-4431
GCVE (VulDB): GCVE-100-2493
X-Force: 28571
SecurityFocus: 19692 - Zend Platform Multiple Remote Vulnerabilities
Secunia: 21573 - Zend Platform Multiple Vulnerabilities, Highly Critical
OSVDB: 28230 - Zend Platform Session Clustering Daemon PHP Session Identifier Overflow
Vulnerability Center: 12621 - Zend Platform Multiple Buffer Overflows in mod_cluster and in the Session Clustering Daemon, High
Vupen: ADV-2006-3388

See also: 🔍

Entryinfo

Created: 08/29/2006 16:23
Updated: 06/24/2019 17:55
Changes: 08/29/2006 16:23 (74), 06/24/2019 17:55 (13)
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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