CVE-2016-3957

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Published Feb 6, 2018 CVSS 3.0 · 9.8 Critical EPSS 4.9% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

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

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
Ubuntu USN	USN-4030-1	web2py vulnerabilities

Metrics

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 4.9% (4.937% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
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.py#L200
https://usn.ubuntu.com/4030-1/

History

No history.

Subscriptions

Web2py Web2py

Weaknesses

CWE-502

Sources

CVE record Updated: Aug 6, 2024, 12:10 AM

Status: PUBLISHED
Assigner: mitre
Published: Feb 6, 2018, 6:00 PM
Updated: Aug 6, 2024, 12:10 AM
Reserved: Apr 5, 2016, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 12:46 AM

Status: Modified
Published: Feb 6, 2018, 6:29 PM
Modified: Jun 17, 2026, 12:46 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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