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User authorization bug - privilege escalation

High
Eugeny published GHSA-c94j-vqr5-3mxr Nov 23, 2023

Package

warpgate (Binary)

Affected versions

<=0.8.1

Patched versions

0.9.0

Description

Summary

Privilege escalation through a non-admin user's account.

Limited users can impersonate another user's account if only single-factor authentication is configured.

PoC

If I know an admin username, and open the login screen and type the admin's username and enter the wrong password, then type any other valid user's name and password, it logs me in as the username that I entered initially with their permission. Even shows admin user's name in the upper left.

Impact

Users of 0.8.1

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
Adjacent
Attack complexity
High
Privileges required
Low
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:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE ID

CVE-2023-48712

Weaknesses

No CWEs

Credits