Kunena SQL Injection

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Vendor/Product: Kunena  
Vulnerable Versions: < 1.5.14; < 1.6.3  
Vulnerability Type: SQL Injection & information leakage  
Risk level: High  
  
Vulnerability Details:  
Because parameterized queries were not used, and adequate input  
sanitization was not done on the catids parameter on the advanced search  
page, it is possible for an attacker to run limited SQL commands on the  
server.  
  
Furthermore, when exploited with invalid SQL, it provides the full  
stacktrace. This gives the attacker the exact version of Kunena, PHP,  
and MySQL along with path to kunena.search.class.php. This path often  
starts with /home/username which discloses the username, which can then  
be used to launch further attacks. This can not be disabled in the  
1.5.x branch, in 1.6.x branch it can be disabled via "display_errors = off".  
  
  
Recommendations:  
If using the 1.5.x branch, upgrade to 1.5.14 and consider moving to the  
1.6.x branch.  
If using the 1.6.x branch, upgrade to 1.6.3 and set "display_errors =  
off" to mitigate any damage for potential future issues  
  
http://www.kunena.org/download  
  
  
Proof of Concept:  
http://localhost/index.php/forum/advsearch?q=hilfe&catids=5\%27  
  
  
Regards,  
Red Matter Inc.  
  
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