An issue in Aranda Service Desk Web Edition (ASDK API 8.6) allows authenticated attackers to achieve remote code execution due to improper validation of uploaded files. An authenticated user can upload a crafted web.config file by sending a crafted POST request to /ASDKAPI/api/v8.6/item/addfile, which is processed by the ASP.NET runtime. The uploaded configuration file alters the execution context of the upload directory, enabling compilation and execution of attacker-controlled code (e.g., generation of an .aspx webshell).
This allows remote command execution on the server without user interaction beyond authentication, impacting both On-Premise and SaaS deployments. The vendor has fixed the issue in Aranda Service Desk V8 8.30.6.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
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