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Vulnerable juju hook tool abstract UNIX domain socket

Moderate
hpidcock published GHSA-8v4w-f4r9-7h6x Oct 2, 2024

Package

No package listed

Affected versions

<= 3.5.3, <= 3.4.5, <= 3.3.6, <= 3.2.4, <= 3.1.9, <= 2.9.50

Patched versions

3.5.4, 3.4.6, 3.3.7, 3.1.10, 2.9.51

Description

Impact

When combined with an attack of JUJU_CONTEXT_ID, any user on the local system with access to the default network namespace may connect to the @/var/lib/juju/agents/unit-xxxx-yyyy/agent.socket and perform actions that are normally reserved to a juju charm.

Patches

Patch: 2f2ec12
Patched in:

  • 3.5.4
  • 3.4.6
  • 3.3.7
  • 3.1.10
  • 2.9.51

Workarounds

No workarounds available.

References

GHSA-mh98-763h-m9v4

juju/worker/uniter/paths.go

Line 222 in 7258009

path = "@" + path

Severity

Moderate

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
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
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:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:H

CVE ID

CVE-2024-8037

Weaknesses

Credits