Skip to content

Arbitrary Code Generation

High severity GitHub Reviewed Published Aug 13, 2020 in openapi-generators/openapi-python-client • Updated Jan 9, 2023

Package

pip openapi-python-client (pip)

Affected versions

< 0.5.3

Patched versions

0.5.3

Description

Impact

Clients generated with a maliciously crafted OpenAPI Document can generate arbitrary Python code. Subsequent execution of this malicious client is arbitrary code execution.

Giving this a CVSS of 8.0 (high) with CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:P/RL:U/RC:C .

Patches

Fix will be included in version 0.5.3

Workarounds

Inspect OpenAPI documents before generating, or inspect generated code before executing.

For more information

If you have any questions or comments about this advisory:

References

@dbanty dbanty published to openapi-generators/openapi-python-client Aug 13, 2020
Reviewed Aug 14, 2020
Published to the GitHub Advisory Database Aug 20, 2020
Last updated Jan 9, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS score

0.169%
(55th percentile)

Weaknesses

CVE ID

CVE-2020-15142

GHSA ID

GHSA-9x4c-63pf-525f

Source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.