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pr-e2e.yml workflow is vulnerable

Low
JorTurFer published GHSA-w92x-gx4w-j5f2 Jul 26, 2023

Package

gomod e2e tests (Go)

Affected versions

v2.11

Patched versions

v2.11.2

Description

Summary

The pr-e2e.yml workflow is vulnerable to command injection attacks because of using an untrusted event.comment.body field.

Details

Line 140: MESSAGE="${{ github.event.comment.body }}"

PoC

Assigning the value of the issue comment body to any-body"; echo hacked can lead to command injection.

Impact

Since the permission is not restricted, the attacker has a write-access to the repository.

Severity

Low

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
High
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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:H/UI:R/S:U/C:L/I:N/A:N

CVE ID

No known CVE

Weaknesses

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Learn more on MITRE.

Credits