Vulnerability CVE-2014-9117
Published: 2014-12-06   Modified: 2014-12-07

Description:
MantisBT before 1.2.18 uses the public_key parameter value as the key to the CAPTCHA answer, which allows remote attackers to bypass the CAPTCHA protection mechanism by leveraging knowledge of a CAPTCHA answer for a public_key parameter value, as demonstrated by E4652 for the public_key value 0.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Mantis BugTracker 1.2.17 XSS / DoS / Redirect
Alejo Popovici
06.01.2015

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
Mantisbt -> Mantisbt 

 References:
http://secunia.com/advisories/62101
http://www.debian.org/security/2015/dsa-3120
http://www.openwall.com/lists/oss-security/2014/11/26/19
http://www.openwall.com/lists/oss-security/2014/11/27/8
http://www.securityfocus.com/bid/71321
https://exchange.xforce.ibmcloud.com/vulnerabilities/99004
https://github.com/mantisbt/mantisbt/commit/7bb78e45
https://www.mantisbt.org/bugs/view.php?id=17811
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