MyBB prior 1.2.0 Remote Code Execution

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.
9.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as very critical, was found in MyBB. Affected by this vulnerability is an unknown functionality. Such manipulation leads to Remote Code Execution. This vulnerability is uniquely identified as CVE-2011-5133. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in MyBB (Content Management System) and classified as very critical. Affected by this issue is some unknown functionality. The manipulation with an unknown input leads to a remote code execution vulnerability. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Unspecified vulnerability in MyBB before 1.6.5 has unknown impact and attack vectors, related to an "unparsed user avatar in the buddy list."

The weakness was disclosed 08/30/2012 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2011-5133 since 08/30/2012. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/20/2019).

Upgrading to version 1.2.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 50816†), OSVDB (77325†) and Secunia (SA46951†). The entries VDB-61951 and VDB-61950 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Content Management System

Name

• MyBB

License

• open-source

Website

• Product: https://mybb.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.4

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
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: Remote Code Execution
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MyBB 1.2.0

Timelineinfo

11/25/2011 🔍
11/25/2011 +0 days 🔍
08/30/2012 +279 days 🔍
08/30/2012 +0 days 🔍
08/30/2012 +0 days 🔍
03/23/2015 +935 days 🔍
02/20/2019 +1430 days 🔍

Sourcesinfo

Product: mybb.com

Advisory: securityfocus.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-5133 (🔍)
GCVE (CVE): GCVE-0-2011-5133
GCVE (VulDB): GCVE-100-61952
SecurityFocus: 50816 - MyBB Multiple Security Vulnerabilities
Secunia: 46951 - MyBB Multiple Vulnerabilities, Moderately Critical
OSVDB: 77325

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 02/20/2019 12:27
Changes: 03/23/2015 16:50 (48), 02/20/2019 12:27 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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