PHP 5.5.1 Sessions Subsystem session_regenerate_id access control

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability was found in PHP 5.5.1 (Programming Language Software). It has been classified as problematic. Affected is the function session_regenerate_id of the component Sessions Subsystem. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Session fixation vulnerability in the Sessions subsystem in PHP before 5.5.2 allows remote attackers to hijack web sessions by specifying a session ID.

The weakness was presented 12/02/2011 as Request for Comments: Strict Sessions as confirmed posting (Wiki). The advisory is available at wiki.php.net. This vulnerability is traded as CVE-2011-4718 since 12/09/2011. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

A public exploit has been developed in HTTP Request. 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 69402 (PHP 5.5.x < 5.5.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350520 (Amazon Linux Security Advisory for php54: ALAS-2013-224).

Upgrading to version 5.5.2 or 5.5.3 eliminates this vulnerability. The upgrade is hosted for download at git.php.net. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.php.net. It is possible to mitigate the problem by applying the configuration setting use_strict_session = On. The problem might be mitigated by replacing the product with ASP, JSP or CGI as an alternative. The best possible mitigation is suggested to be upgrading to the latest version. OSVDB hält fäst: "[C]ontradictory reports from the vendor's bug report say that the fix was 'applied to 5.5.3', which had not yet been released as of 2013-08-17. It is currently unclear which is correct."

The vulnerability is also documented in the databases at X-Force (86379) and Tenable (69402). Further details are available at bugs.php.net.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69402
Nessus Name: PHP 5.5.x < 5.5.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 866845
OpenVAS Name: Fedora Update for php FEDORA-2013-14998
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 5.5.2/5.5.3
Patch: git.php.net
Config: use_strict_session = On
Alternative: ASP/JSP/CGI

Timelineinfo

12/02/2011 🔍
12/09/2011 +7 days 🔍
02/21/2013 +440 days 🔍
08/04/2013 +164 days 🔍
08/13/2013 +9 days 🔍
08/19/2013 +6 days 🔍
08/21/2013 +2 days 🔍
08/26/2013 +5 days 🔍
05/21/2021 +2825 days 🔍

Sourcesinfo

Product: php.org

Advisory: Request for Comments: Strict Sessions
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4718 (🔍)
IAVM: 🔍

X-Force: 86379
Vulnerability Center: 41207 - PHP Before 5.5.2 Remote Hijacking of Web Sessions Using a Session ID, Medium
SecurityFocus: 58224 - PHP 'soap.wsdl_cache_dir' Validation Arbitrary File Write Vulnerability
Secunia: 54562 - PHP Unspecified Session Fixation Vulnerability, Less Critical
OSVDB: 96316

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

Entryinfo

Created: 08/19/2013 15:15
Updated: 05/21/2021 15:20
Changes: 08/19/2013 15:15 (93), 05/09/2017 10:31 (2), 05/21/2021 15:20 (3)
Complete: 🔍
Cache ID: 3:A7A:103

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