PHP up to 4.4.5 Session Extension link following

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability classified as problematic was found in PHP up to 4.4.5 (Programming Language Software). This vulnerability affects an unknown functionality of the component Session Extension. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The session extension in PHP before 5.2.4 might allow local users to bypass open_basedir restrictions via a session file that is a symlink.

The bug was discovered 08/30/2007. The weakness was published 09/04/2007 by Maksymilian Arciemowicz (shinnai) (Website). The advisory is shared for download at secunia.com. This vulnerability was named CVE-2007-4652 since 09/04/2007. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 26038 (FreeBSD : php -- multiple vulnerabilities (71d903fc-602d-11dc-898c-001921ab2fa4)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading to version 4.4.6 eliminates this vulnerability. A possible mitigation has been published 1 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (36387), Exploit-DB (10557), Tenable (26038), SecurityFocus (BID 25498†) and OSVDB (36866†). Similar entries are available at VDB-3203, VDB-3288, VDB-3284 and VDB-3285. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

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: 26038
Nessus Name: FreeBSD : php -- multiple vulnerabilities (71d903fc-602d-11dc-898c-001921ab2fa4)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 58803
OpenVAS Name: FreeBSD Ports: php5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: PHP 4.4.6

Timelineinfo

08/30/2007 🔍
08/31/2007 +1 days 🔍
08/31/2007 +0 days 🔍
09/04/2007 +4 days 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/04/2007 +0 days 🔍
09/11/2007 +7 days 🔍
09/14/2007 +3 days 🔍
09/18/2007 +4 days 🔍
03/16/2015 +2736 days 🔍
04/13/2025 +3681 days 🔍

Sourcesinfo

Product: php.org

Advisory: secunia.com⛔
Researcher: Maksymilian Arciemowicz (shinnai)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-4652 (🔍)
GCVE (CVE): GCVE-0-2007-4652
GCVE (VulDB): GCVE-100-38620
X-Force: 36387
SecurityFocus: 25498 - PHP 5.2.3 and Prior Versions Multiple Vulnerabilities
Secunia: 26642
OSVDB: 36866 - CVE-2007-4652 - PHP - Security Bypass Issue
Vulnerability Center: 16074 - PHP < 5.2.4 Open_basedir Restrictions Bypass, High
Vupen: ADV-2007-3023

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

Entryinfo

Created: 03/16/2015 12:18 PM
Updated: 04/13/2025 09:32 PM
Changes: 03/16/2015 12:18 PM (76), 07/25/2019 08:23 PM (11), 04/13/2025 09:32 PM (19)
Complete: 🔍
Cache ID: 18:85E:40

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