CVE-2021-32016 in AMS
Summary
by MITRE • 08/03/2021
An issue was discovered in JUMP AMS 3.6.0.04.009-2487. A JUMP SOAP endpoint permitted the writing of arbitrary files to a user-controlled location on the remote filesystem (with user-controlled content) via directory traversal, potentially leading to remote code and command execution.
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Analysis
by VulDB Data Team • 05/30/2025
The vulnerability identified as CVE-2021-32016 affects JUMP AMS version 3.6.0.04.009-2487 and represents a critical directory traversal flaw within the SOAP endpoint implementation. This security weakness stems from inadequate input validation and sanitization mechanisms that fail to properly restrict file path manipulation attempts. The vulnerability allows authenticated attackers with access to the SOAP interface to exploit path traversal techniques that enable them to write arbitrary files to any location on the target filesystem. The affected system processes user-supplied file paths without sufficient validation, creating an opportunity for malicious actors to bypass normal access controls and potentially execute arbitrary code on the affected server.
This vulnerability directly maps to CWE-22, which describes improper limitation of a pathname to a restricted directory, commonly known as directory traversal or path traversal attacks. The flaw enables attackers to manipulate file system access through specially crafted requests that leverage the SOAP endpoint's file handling capabilities. The security implications extend beyond simple file manipulation as the ability to write arbitrary files to arbitrary locations on the filesystem creates a potential pathway for remote code execution. Attackers can leverage this vulnerability to place malicious payloads such as web shells or backdoor executables in strategic locations within the target system's file hierarchy.
The operational impact of this vulnerability is severe and potentially catastrophic for organizations relying on JUMP AMS for their operations. Successful exploitation could result in complete system compromise, allowing attackers to establish persistent access, exfiltrate sensitive data, and potentially use the compromised system as a launch point for further attacks within the network. The vulnerability affects the integrity and confidentiality of the system, as unauthorized file creation and modification capabilities can be used to corrupt system files, install malware, or create unauthorized access points. Additionally, the attack surface expands when considering that the vulnerability can be exploited remotely, eliminating the need for physical access to the system.
Mitigation strategies for CVE-2021-32016 should focus on immediate patching of the affected JUMP AMS version to address the directory traversal vulnerability. Organizations should implement strict input validation and sanitization measures for all file path parameters received through the SOAP endpoint, ensuring that all user-supplied paths are properly normalized and validated against a whitelist of allowed directories. Network segmentation and access control measures should be strengthened to limit access to the SOAP endpoint to only authorized users and systems. The implementation of web application firewalls and intrusion detection systems can help detect and prevent exploitation attempts. Additionally, regular security audits and penetration testing should be conducted to identify and remediate similar vulnerabilities in the system architecture. The ATT&CK framework categorizes this vulnerability under T1059 for command and scripting interpreter and T1078 for valid accounts, as exploitation typically requires legitimate access to the SOAP interface and subsequent privilege escalation through file manipulation and code execution capabilities.