phpBB up to 2.0.21 privmsg.php cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in phpBB. It has been declared as problematic. The affected element is an unknown function of the file privmsg.php. The manipulation results in cross site scripting. This vulnerability is reported as CVE-2006-6421. The attack can be launched remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in phpBB (Forum Software). Affected is some unknown processing of the file privmsg.php. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Cross-site scripting (XSS) vulnerability in the private message box implementation (privmsg.php) in phpBB 2.0.x allows remote authenticated users to inject arbitrary web script or HTML via the "Message body" field in a message to a non-existent user.

The bug was discovered 12/07/2006. The weakness was disclosed 12/10/2006 (Website). The advisory is shared for download at xforce.iss.net. This vulnerability is traded as CVE-2006-6421 since 12/09/2006. It is possible to launch the attack remotely. Required for exploitation is a authentication. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1059.007.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:privmsg.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 23968 (phpBB < 2.0.22 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (30776), Tenable (23968), SecurityFocus (BID 22001†), OSVDB (31859†) and Secunia (SA23283†). The entry VDB-33799 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 23968
Nessus Name: phpBB < 2.0.22 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/07/2006 🔍
12/07/2006 +0 days 🔍
12/08/2006 +1 days 🔍
12/09/2006 +1 days 🔍
12/10/2006 +1 days 🔍
12/10/2006 +0 days 🔍
01/03/2007 +24 days 🔍
01/08/2007 +5 days 🔍
01/11/2007 +3 days 🔍
03/12/2015 +2982 days 🔍
07/13/2019 +1584 days 🔍

Sourcesinfo

Product: phpbb.com

Advisory: xforce.iss.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-6421 (🔍)
GCVE (CVE): GCVE-0-2006-6421
GCVE (VulDB): GCVE-100-33732
X-Force: 30776
SecurityFocus: 22001 - phpBB Privmsg.PHP HTML Injection Vulnerability
Secunia: 23283 - phpBB privmsg.php Cross-Site Request Forgery and Cross-Site Scripting, Less Critical
OSVDB: 31859 - phpBB privmsg.php cross-site scripting
Vulnerability Center: 13865 - phpBB XSS via privmsg.php, Medium

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

Entryinfo

Created: 03/12/2015 22:21
Updated: 07/13/2019 10:51
Changes: 03/12/2015 22:21 (70), 07/13/2019 10:51 (8)
Complete: 🔍
Cache ID: 216::103

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