PHP 4.4.0/5.2.0 Restriction input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in PHP 4.4.0/5.2.0. This issue affects some unknown processing of the component Restriction Handler. Such manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2006-6383. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in PHP 4.4.0/5.2.0 (Programming Language Software). Affected by this issue is an unknown code block of the component Restriction Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

PHP 5.2.0 and 4.4 allows local users to bypass safe_mode and open_basedir restrictions via a malicious path and a null byte before a ";" in a session_save_path argument, followed by an allowed path, which causes a parsing inconsistency in which PHP validates the allowed path but sets session.save_path to the malicious path.

The weakness was disclosed 12/10/2006 by Maksymilian Arciemowicz (Website). The advisory is shared for download at securityreason.com. This vulnerability is handled as CVE-2006-6383 since 12/06/2006. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 27390 (openSUSE 10 Security Update : php5 (php5-2687)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165086 (SUSE Security Update for PHP4, PHP5 (SUSE-SA:2007:020)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (30795), Exploit-DB (29239), Tenable (27390), SecurityFocus (BID 21508†) and OSVDB (32768†). The entries VDB-2920, VDB-2911, VDB-2914 and VDB-2917 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 27390
Nessus Name: openSUSE 10 Security Update : php5 (php5-2687)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 830303
OpenVAS Name: Zoho ManageEngine Support Center Plus Multiple Fields XSS Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

12/06/2006 🔍
12/07/2006 +1 days 🔍
12/07/2006 +0 days 🔍
12/10/2006 +2 days 🔍
12/10/2006 +0 days 🔍
02/26/2007 +78 days 🔍
03/01/2007 +3 days 🔍
10/17/2007 +229 days 🔍
03/12/2015 +2703 days 🔍
06/08/2025 +3741 days 🔍

Sourcesinfo

Product: php.org

Advisory: securityreason.com
Researcher: Maksymilian Arciemowicz
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-6383 (🔍)
GCVE (CVE): GCVE-0-2006-6383
GCVE (VulDB): GCVE-100-33752
X-Force: 30795
SecurityFocus: 21508 - PHP Session.Save_Path() Safe_Mode and Open_Basedir Restriction Bypass Vulnerability
Secunia: 24022
OSVDB: 32768
Vulnerability Center: 14422 - PHP Restriction Bypass via sessions_save_path Argument, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/12/2015 22:21
Updated: 06/08/2025 10:22
Changes: 03/12/2015 22:21 (71), 09/20/2018 12:52 (9), 06/08/2025 10:22 (27)
Complete: 🔍
Cache ID: 216::103

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