phpBB 2.0.21 avatar_path privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in phpBB 2.0.21 and classified as problematic. This affects an unknown function. Executing a manipulation of the argument avatar_path can lead to privilege escalation. This vulnerability is registered as CVE-2006-4758. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

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), Tenable (22502), SecurityFocus (BID 21806†), OSVDB (29493†) and Secunia (SA22188†). Similar entries are available at VDB-32261, VDB-34146, VDB-34145 and VDB-34144. 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: 5.0
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
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: Privilege escalation
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 (🔍)
GCVE (CVE): GCVE-0-2006-4758
GCVE (VulDB): GCVE-100-32260

OVAL: 🔍

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

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: 🔍
Cache ID: 216::103

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