CVE-2024-37373 Overview
CVE-2024-37373 is an improper input validation vulnerability [CWE-20] in the Central Filestore component of Ivanti Avalanche 6.3.1 and later versions. The flaw allows a remote authenticated attacker with administrative rights to achieve remote code execution (RCE) on the affected server. Ivanti addressed the issue in Avalanche 6.4.4 through a coordinated security advisory covering multiple CVEs.
The vulnerability affects Ivanti Avalanche, an enterprise mobility management (EMM) platform used to manage rugged mobile devices across warehouses, retail, and logistics environments. Compromise of an Avalanche server exposes managed device fleets and administrative infrastructure.
Critical Impact
Authenticated administrators can execute arbitrary code on the Avalanche server, resulting in full loss of confidentiality, integrity, and availability of the enterprise mobility management infrastructure.
Affected Products
- Ivanti Avalanche 6.3.1 through 6.3.4 (premise builds, including 6.3.1.1507, 6.3.2.3490, 6.3.3.101, and 6.3.4.153)
- Ivanti Avalanche 6.4.0, 6.4.1, and 6.4.2 (premise builds, including 6.4.1.207 and 6.4.1.236)
- Fixed in Ivanti Avalanche 6.4.4
Discovery Timeline
- 2024-08-14 - CVE-2024-37373 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-37373
Vulnerability Analysis
The Central Filestore is a component of Ivanti Avalanche responsible for storing and distributing files used by managed mobile devices, including deployment packages, configuration payloads, and firmware artifacts. The component fails to properly validate input supplied through its administrative interface. An attacker with valid administrator credentials can send crafted requests that bypass expected constraints and cause the server to process attacker-controlled data as executable content.
Successful exploitation grants code execution in the context of the Avalanche service account. From that foothold, attackers can pivot to managed devices, tamper with software distribution, and extract stored credentials or configuration data.
Root Cause
The root cause is improper input validation [CWE-20] in the Central Filestore handler. The component accepts values from privileged users without enforcing sufficient checks on file type, path, or content. This gap allows attacker-supplied data to influence server-side operations beyond the intended file management scope, ultimately enabling arbitrary command execution.
Attack Vector
The attack is network-based and requires high privileges. The attacker must already possess administrator credentials on the Avalanche console. No user interaction is required. Credentials may be obtained through prior phishing, credential reuse, or exploitation of separate authentication weaknesses in the same environment. Once authenticated, the attacker interacts with the Central Filestore over the network to trigger the flaw.
No public proof-of-concept exploit is available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Refer to the Ivanti Security Advisory for Avalanche for vendor technical details.
Detection Methods for CVE-2024-37373
Indicators of Compromise
- Unexpected files written to Central Filestore directories on the Avalanche server
- New or modified processes spawned by the Avalanche service account outside routine operations
- Outbound network connections from the Avalanche server to unknown external hosts
- Administrator logins from unusual source addresses or at atypical hours preceding filestore activity
Detection Strategies
- Audit Avalanche administrator authentication logs for unexpected sessions and correlate with filestore operations
- Monitor process creation on the Avalanche server for child processes of the Avalanche service that are not part of normal operation
- Inspect Central Filestore write operations for file extensions and payload types outside the documented set
- Baseline network traffic from the Avalanche server and alert on deviations, including unexpected outbound connections
Monitoring Recommendations
- Enable verbose logging on the Avalanche console and forward logs to a centralized SIEM for correlation
- Track changes to files under Central Filestore paths and alert on modifications outside change windows
- Monitor Windows event logs on the Avalanche host for process creation (Event ID 4688) and service account activity
- Review administrator account inventory and rotate credentials for accounts with Avalanche admin rights
How to Mitigate CVE-2024-37373
Immediate Actions Required
- Upgrade Ivanti Avalanche to version 6.4.4 or later, which contains the vendor fix
- Rotate credentials for all Avalanche administrator accounts and enforce strong, unique passwords
- Restrict network access to the Avalanche console to trusted management networks only
- Review recent administrator activity and Central Filestore contents for signs of tampering
Patch Information
Ivanti released Avalanche 6.4.4 addressing CVE-2024-37373 alongside CVE-2024-38652, CVE-2024-38653, CVE-2024-36136, and CVE-2024-37399. Administrators should apply the upgrade following vendor guidance in the Ivanti Security Advisory for Avalanche. Verify the upgraded build number after installation and confirm that all Avalanche services restart cleanly.
Workarounds
- Limit Avalanche console access to a small, audited set of administrator accounts until patching is complete
- Place the Avalanche server behind network segmentation that blocks direct access from user subnets and the internet
- Enable multi-factor authentication on any identity provider backing Avalanche administrator logins where supported
- Increase monitoring frequency on the Avalanche server and Central Filestore paths during the remediation window
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
