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Any logged in user could edit any other logged in user.

High severity GitHub Reviewed Published Apr 16, 2021 in curveball/a12n-server • Updated Jan 27, 2023

Package

npm @curveball/a12n-server (npm)

Affected versions

>= 0.18.0, < 0.18.2

Patched versions

0.18.2

Description

Impact

Everyone who is running a12n-server.

A new HAL-Form was added to allow editing users. This feature should only have been accessible to admins. Unfortunately, privileges were incorrectly checked allowing any logged in user to make this change.

Patches

Patched in v0.18.2

References

@evert evert published to curveball/a12n-server Apr 16, 2021
Published by the National Vulnerability Database Apr 16, 2021
Reviewed Apr 16, 2021
Published to the GitHub Advisory Database Apr 19, 2021
Last updated Jan 27, 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
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
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:L/UI:N/S:U/C:H/I:H/A:N

EPSS score

0.050%
(21st percentile)

Weaknesses

CVE ID

CVE-2021-29452

GHSA ID

GHSA-8hw9-22v6-9jr9

Source code

No known source code
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