Vulnerability CVE-2007-0658
Published: 2007-02-01   Modified: 2012-02-12

Description:
The (1) Textimage 4.7.x before 4.7-1.2 and 5.x before 5.x-1.1 module for Drupal and the (2) Captcha 4.7.x before 4.7-1.2 and 5.x before 5.x-1.1 module for Drupal allow remote attackers to bypass the CAPTCHA test via an empty captcha element in $_SESSION.

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Drupal -> Drupal 
Drupal -> Textimage 

 References:
http://secunia.com/advisories/23985
http://secunia.com/advisories/23983
http://drupal.org/node/114519
http://drupal.org/node/114364
http://cvs.drupal.org/viewcvs/drupal/contributions/modules/textimage/captcha.inc?r1=1.1&r2=1.1.2.1
http://cvs.drupal.org/viewcvs/drupal/contributions/modules/captcha/captcha.module?r1=1.25.2.1&r2=1.25.2.2
http://www.vupen.com/english/advisories/2007/0431
http://www.securityfocus.com/bid/22329
http://osvdb.org/32138
http://osvdb.org/32137
http://xforce.iss.net/xforce/xfdb/31994
http://xforce.iss.net/xforce/xfdb/31984
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