Description
Kofax Capture, now referred to as Tungsten Capture, version 6.0.0.0 (other versions may be affected) exposes a deprecated .NET Remoting HTTP channel on port 2424 via the Ascent Capture Service that is accessible without authentication and uses a default, publicly known endpoint identifier. An unauthenticated remote attacker can exploit .NET Remoting object unmarshalling techniques to instantiate a remote System.Net.WebClient object and read arbitrary files from the server filesystem, write attacker-controlled files to the server, or coerce NTLMv2 authentication to an attacker-controlled host, enabling sensitive credential disclosure, denial of service, remote code execution, or lateral movement depending on service account privileges and network environment.
Problem types
CWE-306 Missing Authentication for Critical Function
CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')
Product status
6.0.0.0 (semver)
Timeline
| 2025-12-18: | The VulnCheck CNA conducted initial outreach to Tungsten Automation, thus initiating our 120-day disclosure timeline. |
Credits
Victor A. Morales, Senior Pentester Team Leader, GM Sectec, Corp.
VulnCheck
References
gist.github.com/VAMorales/3888941d6e5efdd4b2e673e999f68ca2
docshield.tungstenautomation.com/...11.1.0-40hy9nfk91/KC.htm
www.vulncheck.com/...ead-write-smb-coercion-via-net-remoting