Title: Van Dyke Technologies VShell Port Forwarding Vulnerability
Severity: HIGH
Description:
Van Dyke Technologies VShell server provides SSH access to NT servers and other network resources. Port Forwarding via SSH2 is also supported, allowing encrypted tunnelling of data.
Due to a flaw in VShell, it is possible for an authenticated user to gain access to unauthorized resources.
By default VShell is implemented with a port forwarding rule of 0.0.0.0/0.0.0.0 to any port. A valid user with an understanding of the internal addressing scheme in a network could connect to any service desired.
Successful exploitation of this vulnerability could assist in further attacks against the victim host.
Affected Products:
- Van Dyke Technologies VShell 1.0.0
- Van Dyke Technologies VShell 1.0.1
References:
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