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OS Command Injection in pulverizr

Critical severity GitHub Reviewed Published May 7, 2021 to the GitHub Advisory Database • Updated Sep 6, 2023

Package

npm pulverizr (npm)

Affected versions

<= 0.7.0

Patched versions

None

Description

pulverizr through 0.7.0 allows execution of arbitrary commands. Within lib/job.js, the variable filename can be controlled by the attacker. This function uses the variable "filename" to construct the argument of the exec call without any sanitization. In order to successfully exploit this vulnerability, an attacker will need to create a new file with the same name as the attack command.

References

Published by the National Vulnerability Database Mar 15, 2020
Reviewed May 4, 2021
Published to the GitHub Advisory Database May 7, 2021
Last updated Sep 6, 2023

Severity

Critical

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
Low
Privileges required
None
User interaction
None
Scope
Unchanged
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:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

1.023%
(84th percentile)

Weaknesses

CVE ID

CVE-2020-7604

GHSA ID

GHSA-fmf5-j5j9-99pp

Source code

No known source code
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