CVE-2016-3957 Information

Description

The secure_load function in gluon/utils.py in web2py before 2.14.2 uses pickle.loads to deserialize session information stored in cookies which might allow remote attackers to execute arbitrary code by leveraging knowledge of encryption_key.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/ https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.pyL200 https://usn.ubuntu.com/4030-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8