NetSupport Manager vulnerabilities

A heap-based buffer overflow in NetSupport Manager 14.x versions prior to 14.12.0000 allows a remote, unauthenticated attacker to cause a denial of service or execute arbitrary code.

NetSupport Manager < 14.12.0001 contains an arbitrary file write vulnerability in its Connectivity Server/Gateway PUTFILE request handler. An attacker with a valid Gateway Key can supply a crafted filename containing directory traversal sequences to write files to arbitrary locations on the server. This can be leveraged to place attacker-controlled DLLs or executables in privileged paths and achieve remote code execution in the context of the NetSupport Manager connectivity service.

NetSupport Manager before 14.12.0001 relies on a shared Gateway Key for authentication. The key is stored using a reversible encoding scheme, allowing an attacker with access to a client configuration file to recover the key and gain unauthorized access to connectivity services and remote control of systems.

NetSupport Manager < 14.12.0001 contains an unauthenticated SQL injection vulnerability in its Connectivity Server/Gateway HTTPS request handling. The server evaluates request URIs using an unsanitized SQLite query against the FileLinks table in gateway.db. By injecting SQL through the LinkName/URI value, a remote attacker can control the FileName field used by the server to read and return files from disk, resulting in arbitrary local file disclosure.

NetSupport Manager 14.x versions prior to 14.12.0000 have a stack-based buffer overflow vulnerability. A remote, unauthenticated attacker can cause a denial-of-service (DoS) or potentially leak a limited amount of memory.