Zend Zend Platform up to 2.2.1 Session Identifier path traversal

EntryHistoryDiffjsonxmlCTI

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.
6.9	$0-$5k	0.00

A vulnerability was found in Zend Zend Platform up to 2.2.1 and classified as critical. Affected by this issue is an unknown part of the component Session Identifier. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Directory traversal vulnerability in Zend Platform 2.2.1 and earlier allows remote attackers to overwrite arbitrary files via a .. (dot dot) sequence in the final component of the PHP session identifier (PHPSESSID). NOTE: in some cases, this issue can be leveraged to perform direct static code injection.

The bug was discovered 08/21/2006. The weakness was published 08/24/2006 by Stefan Esser as not defined posting (Bugtraq). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2006-4432 since 08/28/2006. 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 current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/14/2019). The MITRE ATT&CK project declares the attack technique as T1006.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

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 X-Force (28576). Similar entries are available at 2493, 2492, 32001 and 84506.

Productinfo

Vendor

Zend

Name

Zend Platform

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.3
VulDB Temp Score: 6.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Path traversal
CWE: CWE-22
ATT&CK: T1006

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/21/2006 🔍
08/24/2006 +3 days 🔍
08/24/2006 +0 days 🔍
08/24/2006 +0 days 🔍
08/25/2006 +0 days 🔍
08/28/2006 +2 days 🔍
08/28/2006 +0 days 🔍
07/17/2008 +689 days 🔍
03/12/2015 +2429 days 🔍
08/14/2019 +1616 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Stefan Esser
Status: Not defined

CVE: CVE-2006-4432 (🔍)
X-Force: 28576
Vulnerability Center: 18836 - Zend Platform <=2.2.1 Directory Traversal Vulnerability Can Allow File Overwriting, Medium
SecurityFocus: 19692 - Zend Platform Multiple Remote Vulnerabilities
Secunia: 21573
OSVDB: 28232 - Zend Platform PHP Session Identifier Traversal Arbitrary File Overwrite
Vupen: ADV-2006-3388

See also: 🔍

Entryinfo

Created: 03/12/2015 15:51
Updated: 08/14/2019 14:52
Changes: 03/12/2015 15:51 (62), 08/14/2019 14:52 (4)
Complete: 🔍