Published: 06/02/2018 Updated: 21/06/2019

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 668

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

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

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Debian Bug report logs - #891220 web2py: CVE-2016-3952 CVE-2016-3953 CVE-2016-3954 CVE-2016-3957 Package: src:web2py; Maintainer for src:web2py is José L Redrejo Rodríguez <jredrejo@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Fri, 23 Feb 2018 14:09:02 UTC Severity: grave Tags: fixed-up ...

Several security issues were fixed in web2py ...

CWE-502 https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200 https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/https://usn.ubuntu.com/4030-1/https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891220 https://usn.ubuntu.com/4030-1/https://nvd.nist.gov

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CVE-2016-3957

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