MyBB language setting cross-site request forgery

mybb-language-setting-csrf (71462) The risk level is classified as MediumMedium Risk

Description:

MyBB is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed HTTP request to modify the language setting. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.7
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of MyBB (1.6.5 or later), available from the MyBB Web site. See References.

References:

  • MyBB Bug #1729: CSRF vulnerability in ?language=.
  • MyBB Development Blog: MyBB 1.6.5 Released Feature Update, Security & Maintenance Release.
  • MyBB Web Site: MyBB - Free and Open Source Forum Software.
  • BID-50816: MyBB Multiple Security Vulnerabilities
  • CVE-2011-5131: Cross-site request forgery (CSRF) vulnerability in global.php in MyBB before 1.6.5 allows remote attackers to hijack the authentication of a user for requests that change the user's language via the language parameter.
  • OSVDB ID: 77327: MyBB Language Setting Manipulation CSRF
  • SA46951: MyBB Multiple Vulnerabilities

Platforms Affected:

  • MyBB MyBB 1.6
  • MyBB MyBB 1.6.1
  • MyBB MyBB 1.6.2
  • MyBB MyBB 1.6.3
  • MyBB MyBB 1.6.4

Reported:

Nov 25, 2011

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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