Vulnerability CVE-2014-8686
Published: 2017-09-19   Modified: 2017-09-20

Description:
CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-based encryption scheme when the Mcrypt extension for PHP is not available.

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/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
Partial
None
None
Affected software
Codeigniter -> Codeigniter 

 References:
http://packetstormsecurity.com/files/130609/Seagate-Business-NAS-Unauthenticated-Remote-Command-Execution.html
https://beyondbinary.io/articles/seagate-nas-rce/
https://codeigniter.com/userguide2/changelog.html
https://www.dionach.com/blog/codeigniter-session-decoding-vulnerability
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