CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8	$0-$5k	0.00

A vulnerability has been found in phpBB 2.0.21 (Forum Software) and classified as problematic. This vulnerability affects an unknown code. The manipulation of the argument avatar_path with an unknown input leads to a privilege escalation vulnerability. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

phpBB 2.0.21 does not properly handle pathnames ending in %00, which allows remote authenticated administrative users to upload arbitrary files, as demonstrated by a query to admin/admin_board.php with an avatar_path parameter ending in .php%00.

The bug was discovered 09/11/2006. The weakness was published 09/13/2006 (Website). The advisory is shared for download at xforce.iss.net. This vulnerability was named CVE-2006-4758 since 09/13/2006. The exploitation appears to be difficult. The attack can be initiated remotely. A single authentication is needed for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 22502 (FreeBSD : phpbb -- NULL byte injection vulnerability (86526ba4-53c8-11db-8f1a-000a48049292)), 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.

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

The vulnerability is also documented in the databases at X-Force (28884) and Tenable (22502). Similar entries are available at 32261, 34146, 34145 and 34144.

Productinfo

Type

• Forum Software

Name

• phpBB

Version

• 2.0.21

License

• open-source

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Privilege Escalation
CWE: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 22502
Nessus Name: FreeBSD : phpbb -- NULL byte injection vulnerability (86526ba4-53c8-11db-8f1a-000a48049292)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 60361
OpenVAS Name: Debian Security Advisory DSA 1488-1 (phpbb2)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

09/11/2006 🔍
09/11/2006 +0 days 🔍
09/13/2006 +2 days 🔍
09/13/2006 +0 days 🔍
09/13/2006 +0 days 🔍
10/04/2006 +21 days 🔍
10/05/2006 +1 days 🔍
10/10/2006 +5 days 🔍
12/28/2006 +79 days 🔍
03/12/2015 +2996 days 🔍
07/09/2019 +1580 days 🔍

Sourcesinfo

Product: phpbb.com

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

CVE: CVE-2006-4758 (🔍)
OVAL: 🔍

X-Force: 28884
Vulnerability Center: 12865 - phpBB Error in Handling of Directory Pathnames Ending in %00, Medium
SecurityFocus: 21806 - PHPBB Multiple Input Validation Vulnerabilities
Secunia: 22188
OSVDB: 29493 - phpBB NULL byte file upload

See also: 🔍

Entryinfo

Created: 03/12/2015 15:51
Updated: 07/09/2019 08:42
Changes: 03/12/2015 15:51 (71), 07/09/2019 08:42 (8)
Complete: 🔍

Discussion

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