VDB-2201 · CVE-2006-3016 · BID 17843

PHP up to 5.1.2 Session Extension memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

A vulnerability was found in PHP up to 5.1.2 (Programming Language Software) and classified as critical. This issue affects an unknown part of the component Session Extension Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Unspecified vulnerability in session.c in PHP before 5.1.3 has unknown impact and attack vectors, related to "certain characters in session names," including special characters that are frequently associated with CRLF injection, SQL injection, cross-site scripting (XSS), and HTTP response splitting vulnerabilities. NOTE: while the nature of the vulnerability is unspecified, it is likely that this is related to a violation of an expectation by PHP applications that the session name is alphanumeric, as implied in the PHP manual for session_name().

The weakness was released 05/04/2006 by Stefan Esser with PHP Group (Website). The advisory is shared at php.net. The identification of this vulnerability is CVE-2006-3016 since 06/14/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 22443 (RHEL 3 / 4 : php (RHSA-2006:0669)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Red Hat Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156244 (Oracle Enterprise Linux Update for PHP (ELSA-2006:0730,ELSA-2006:0669)).

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 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (22443). Entries connected to this vulnerability are available at 2200, 2199, 2202 and 2423.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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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
ATT&CK: Unknown

Local: No
Remote: Yes

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

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 22443
Nessus Name: RHEL 3 / 4 : php (RHSA-2006:0669)
Nessus File: 🔍
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Patch: php.net

Timelineinfo

05/04/2006 🔍
05/04/2006 +0 days 🔍
05/04/2006 +0 days 🔍
05/05/2006 +0 days 🔍
06/14/2006 +40 days 🔍
06/14/2006 +0 days 🔍
06/15/2006 +1 days 🔍
09/21/2006 +98 days 🔍
09/22/2006 +1 days 🔍
04/27/2019 +4600 days 🔍

Sourcesinfo

Product: php.org

Advisory: php.net
Researcher: Stefan Esser
Organization: PHP Group
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-3016 (🔍)
OVAL: 🔍

SecurityTracker: 1016306
SecurityFocus: 17843 - PHP Multiple Unspecified Vulnerabilities
Secunia: 19927 - PHP Multiple Vulnerabilities, Moderately Critical
OSVDB: 25253 - PHP Session Name Unspecified Character Weakness

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

Entryinfo

Created: 05/05/2006 17:56
Updated: 04/27/2019 16:27
Changes: 05/05/2006 17:56 (89), 04/27/2019 16:27 (2)
Complete: 🔍

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