PHP 5.2.x Session Extension 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 described as problematic has been identified in PHP 5.2.x. Affected is an unknown function of the component Session Extension. The manipulation results in memory corruption. This vulnerability was named CVE-2007-1285. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in PHP 5.2.x (Programming Language Software). Affected is an unknown code block of the component Session Extension. 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. CVE summarizes:

The Zend Engine in PHP 4.x before 4.4.7, and 5.x before 5.2.2, allows remote attackers to cause a denial of service (stack exhaustion and PHP crash) via deeply nested arrays, which trigger deep recursion in the variable destruction routines.

The bug was discovered 03/01/2007. The weakness was presented 08/31/2007 by C.I. Morris (Website). The advisory is shared for download at php.net. This vulnerability is traded as CVE-2007-1285 since 03/06/2007. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at exploit-db.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 $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 28372 (Ubuntu 6.06 LTS / 6.10 / 7.04 / 7.10 : php5 vulnerabilities (USN-549-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156177 (Oracle Enterprise Linux Update for PHP (ELSA-2007-0155)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at php.net. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (32920), Exploit-DB (10557), Tenable (28372), SecurityFocus (BID 22764†) and OSVDB (36866†). See VDB-2587, VDB-2887, VDB-3281 and VDB-3287 for similar entries. 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: 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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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 28372
Nessus Name: Ubuntu 6.06 LTS / 6.10 / 7.04 / 7.10 : php5 vulnerabilities (USN-549-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60386
OpenVAS Name: Slackware Advisory SSA:2008-045-03 php
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: php.net

Timelineinfo

03/01/2007 🔍
03/01/2007 +0 days 🔍
03/01/2007 +0 days 🔍
03/06/2007 +5 days 🔍
03/06/2007 +0 days 🔍
03/14/2007 +8 days 🔍
04/23/2007 +40 days 🔍
08/31/2007 +130 days 🔍
08/31/2007 +0 days 🔍
08/31/2007 +0 days 🔍
09/03/2007 +2 days 🔍
11/29/2007 +87 days 🔍
11/30/2007 +1 days 🔍
04/07/2025 +6338 days 🔍

Sourcesinfo

Product: php.org

Advisory: php.net
Researcher: C.I. Morris
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-1285 (🔍)
GCVE (CVE): GCVE-0-2007-1285
GCVE (VulDB): GCVE-100-3288

OVAL: 🔍

X-Force: 32920
SecurityFocus: 22764 - PHP ZendEngine Variable Destruction Remote Denial of Service Vulnerability
Secunia: 26642
OSVDB: 36866 - PHP Session File Symlink open_basedir Restriction Bypass
SecurityTracker: 1017771
Vulnerability Center: 14917 - PHP Zend Engine Denial of Service via Deeply Nested Arrays, Medium

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

Entryinfo

Created: 09/03/2007 18:13
Updated: 04/07/2025 14:10
Changes: 09/03/2007 18:13 (100), 07/18/2019 10:53 (1), 04/07/2025 14:10 (18)
Complete: 🔍
Cache ID: 216:2EA:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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