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VULNERABILITIES

CVE-2016-3957 Details

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.

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CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/ CVEExploitTechnical DescriptionThird Party Advisory
https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200 CVEThird Party Advisory
https://usn.ubuntu.com/4030-1/ CVE
https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/ [email protected]ExploitTechnical DescriptionThird Party Advisory
https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200 [email protected]Third Party Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-502Deserialization of Untrusted Data[email protected]

Affected Products

ProductVersions
web2py web2py
< 2.14.2

CPE

  • cpe:2.3:a:web2py:web2py:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2016-3957
NVD Published Date:
Feb 6, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2016-3957 Details - Not Deferred