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Elevation of Privilege Vulnerability

High
justschen published GHSA-54p6-6j68-j5vr Mar 12, 2024

Package

No package listed

Affected versions

< 1.87.1

Patched versions

1.87.2

Description

VS Code - Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists in VS Code 1.87.1 and earlier versions for users of the code serve-web command. An attacker who has access to view process information from a lower-privilege account on a machine can inspect a connection token used to secure code server-web being run in an elevated process, and potentially access the server over the network.

Patches

The fix is available starting with VS Code 1.87.2. The fix (778a5ed) mitigates this attack by transmitting the connection token in an appropriately-permissioned file rather than as part of the process arguments.

Workarounds

Do not run code serve-web as an elevated user on a machine where untrusted users can view process information.

References

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

CVE ID

CVE-2024-26165

Weaknesses

No CWEs