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Remoteinventory task command injection when using ssh command mode

High
g-bougard published GHSA-39vc-hxgm-j465 Jun 21, 2023

Package

glpi-agent (glpi-agent)

Affected versions

<1.5

Patched versions

1.5

Description

Impact

If GLPI-Agent is running remoteinventory task against an Unix platform with ssh command, an administrator user on the remote can manage to inject a command in a specific workflow the agent would run with the privileges it uses. In the case, the agent is running with administration privileges, a malicious user could gain high privileges on the computer glpi-agent is running on. A malicious user could also disclose all remote accesses the agent is configured with for remoteinventory task.

Patches

Upgrade to GLPI-Agent 1.5

Workarounds

Upgrade to GLPI-Agent latest nightly build and force remoteinventory mode to libssh2 adding ?mode=libssh2 to the remote url.
Or you can disable the vulnerable code by setting no-category configuration to process,virtualmachine,video,drive,database,storage.

For more information

If you have any questions or comments about this advisory, mail us at [email protected].

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
High
User interaction
None
Scope
Changed
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:H/UI:N/S:C/C:H/I:H/A:H

CVE ID

CVE-2023-34254

Weaknesses

Credits