PHP 5.2.6 posix_access path traversal

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

A vulnerability classified as problematic was found in PHP 5.2.6 (Programming Language Software). This vulnerability affects the function posix_access. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. CVE summarizes:

Directory traversal vulnerability in the posix_access function in PHP 5.2.6 and earlier allows remote attackers to bypass safe_mode restrictions via a .. (dot dot) in an http URL, which results in the URL being canonicalized to a local filename after the safe_mode check has successfully run.

The bug was discovered 06/18/2008. The weakness was published 06/19/2008 by Maksymilian Arciemowicz with SecurityReason (Website). The advisory is available at us-cert.gov. This vulnerability was named CVE-2008-2665 since 06/10/2008. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 34089 (FreeBSD : php -- input validation error in safe_mode (ee6fa2bd-406a-11dd-936a-0015af872849)), 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185076 (HP-UX Running Apache Web Server Suite Multiple Vulnerabilities (HPSBUX02431)).

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

The vulnerability is also documented in the databases at X-Force (43196) and Tenable (34089). Similar entries are available at 3978, 23858, 30376 and 38768.

Productinfo

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Name

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

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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

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

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Current Price Estimation: 🔍

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Nessus ID: 34089
Nessus Name: FreeBSD : php -- input validation error in safe_mode (ee6fa2bd-406a-11dd-936a-0015af872849)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Port: 🔍

OpenVAS ID: 62847
OpenVAS Name: Slackware Advisory SSA:2008-339-01 php
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

06/10/2008 🔍
06/18/2008 +8 days 🔍
06/18/2008 +0 days 🔍
06/19/2008 +1 days 🔍
06/19/2008 +0 days 🔍
06/19/2008 +0 days 🔍
06/19/2008 +0 days 🔍
06/22/2008 +3 days 🔍
06/29/2008 +7 days 🔍
09/05/2008 +68 days 🔍
03/16/2015 +2383 days 🔍
08/12/2019 +1610 days 🔍

Sourcesinfo

Product: php.org

Advisory: us-cert.gov
Researcher: Maksymilian Arciemowicz
Organization: SecurityReason
Status: Not defined
Confirmation: 🔍

CVE: CVE-2008-2665 (🔍)
X-Force: 43196
SecurityTracker: 1020327
Vulnerability Center: 18688 - PHP Posix_access Function Allows Remote Attackers to Bypass Security Restrictions, Medium
SecurityFocus: 29797 - PHP 5 'posix_access()' Function 'safe_mode' Bypass Directory Traversal Vulnerability
Secunia: 32746
OSVDB: 46584 - CVE-2008-2665 - PHP - Directory Traversal Issue
Vupen: ADV-2009-1297

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/12/2019 09:04
Changes: 03/16/2015 17:00 (76), 08/12/2019 09:04 (12)
Complete: 🔍

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