Glances is an open-source system cross-platform monitoring tool. Prior to version 4.5.3, Glances supports dynamic configuration values in which substrings enclosed in backticks are executed as system commands during configuration parsing. This behavior occurs in Config.get_value() and is implemented without validation or restriction of the executed commands.
If an attacker can modify or influence configuration files, arbitrary commands will execute automatically with the privileges of the Glances process during startup or configuration reload. In deployments where Glances runs with elevated privileges (e.g., as a system service), this may lead to privilege escalation. This issue has been patched in version 4.5.3.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Nicolargo Glances
cpe:2.3:a:nicolargo:glances:*:*:*:*:*:*:*:*
|
— |
4.5.3
|
References 3
https://github.com/nicolargo/glances/commit/358d76a225fc21a9f95d2c4d7e46fafe64a…
security-advisories@github.com
https://github.com/nicolargo/glances/releases/tag/v4.5.3
security-advisories@github.com
https://github.com/nicolargo/glances/security/advisories/GHSA-qhj7-v7h7-q4c7
security-advisories@github.com