CVE-2020-11060 in GLPI
Summary
by MITRE
In GLPI before 9.4.6, an attacker can execute system commands by abusing the backup functionality. Theoretically, this vulnerability can be exploited by an attacker without a valid account by using a CSRF. Due to the difficulty of the exploitation, the attack is only conceivable by an account having Maintenance privileges and the right to add WIFI networks. This is fixed in version 9.4.6.
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Analysis
by VulDB Data Team • 01/12/2025
The vulnerability identified as CVE-2020-11060 represents a critical command execution flaw within the GLPI (Gestionnaire Libre de Parc Informatique) software platform, which is widely used for IT asset management and help desk operations. This vulnerability exists in versions prior to 9.4.6 and stems from improper input validation within the backup functionality module. The flaw allows for arbitrary command execution on the underlying system, potentially enabling attackers to gain full control over the affected server and its resources.
The technical exploitation of this vulnerability requires specific prerequisites that significantly limit its attack surface. While the initial description suggests theoretical exploitation without authentication through CSRF attacks, practical exploitation necessitates an account with Maintenance privileges and specific permissions to add WIFI networks. This privilege requirement aligns with CWE-264, which categorizes improper privileges as a fundamental security weakness, and demonstrates how insufficient access control can compound vulnerability exploitation. The attack vector leverages the backup functionality to inject malicious commands that are then executed by the system, bypassing normal security boundaries.
The operational impact of this vulnerability extends beyond simple command execution, as it provides attackers with complete system control capabilities. An attacker with the required privileges could potentially access sensitive data, modify system configurations, install malicious software, or even use the compromised system as a pivot point for attacking other network resources. This vulnerability particularly affects organizations that rely heavily on GLPI for their IT management operations, as the compromise of such a system could lead to widespread data breaches and service disruptions. The attack scenario requires a specific combination of privileges, making it less likely to be exploited by casual attackers but still poses a significant risk to organizations where privileged accounts might be compromised.
The remediation for this vulnerability involves upgrading to GLPI version 9.4.6 or later, which includes proper input sanitization and validation within the backup functionality. Organizations should also implement additional security measures such as regular security audits, privilege monitoring, and network segmentation to limit the potential impact of such vulnerabilities. The vulnerability's classification under CWE-78, which addresses OS command injection, underscores the importance of proper input validation and the principle of least privilege. Security teams should also consider implementing the ATT&CK framework's privilege escalation techniques to better understand and defend against potential exploitation paths. Regular patch management processes become crucial for maintaining system security, as this vulnerability demonstrates how seemingly isolated functionality can provide pathways for complete system compromise. Organizations should conduct thorough security assessments of their GLPI installations to identify and remediate similar vulnerabilities that might exist in other components of their IT management infrastructure.