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| v1.1 Alpha version | ||
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| _____ | ||
| |_ _| _ _ __ _ __ __ _ | ||
| | || | | | '_ \| '_ \ / _` | | ||
| | || |_| | | | | | | | (_| | | ||
| |_| \__,_|_| |_|_| |_|\__,_| | ||
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| Tunna 1.1a, for HTTP tunneling TCP connections by Nikos Vassakis | ||
| http://www.secforce.co.uk / nikos.vassakis <at> secforce.com | ||
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| ################################################################################################################ | ||
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| High level Diagram: | ||
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| +-------------------------------------------+ +-------------------------------------------+ | ||
| | Local Host | | Remote Host | | ||
| |-------------------------------------------| |-------------------------------------------| | ||
| | +----------+ +------------+ | +-------------+ | +------------+ +----------+ | | ||
| | |Client App|+----->|Tunna Client|<==========| Firewall |======>| Webshell |+------>|Server App| | | ||
| | +----------+ +------------+ | +-------------+ | +------------+ +----------+ | | ||
| +-------------------------------------------+ +------------------------------------------ + | ||
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| Technical Diagram: | ||
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| +-------------------------------------------+ +-------------------------------------------+ | ||
| | Local Host | | Remote Host | | ||
| |-------------------------------------------| |-------------------------------------------| | ||
| | | | | | ||
| | +-----------------+ | | +-----------------+ | | ||
| | | Tunna Client | | | | Web Shell (URL) | | | ||
| | |-----------------| | | |-----------------| | | ||
| | | +-------------+ | | | | | | | ||
| | | |HTTP encap. | | | HTTP Traffic | | +-----------+ | | | ||
| | | +------^------+ <=================================> |HTTP>Unwrap| | | | ||
| | | | | | | | +-----+-----+ | | | ||
| | | +-------------+ | | | | | | | | ||
| | | | SOCKS 4a | | | | | +-----v-----+ | | | ||
| | | +------^------+ | | | | | SOCKS 4a | | | | ||
| | | | | | | | +-----+-----+ | | | ||
| | | +------+------+ | | | | | | | | ||
| | +-| Local Port |-+ | | +--------v--------+ | | ||
| | +------^------+ | | | | | ||
| | | | | | | | ||
| | +----------------+ | | | | +----------------+ | | ||
| | |Local Client | | | | +--------> Remote Service | | | ||
| | |----------------| | | | |----------------| | | ||
| | |Connect to local| | | | |Connection | | | ||
| | |Socket | | | | |received from | | | ||
| | | +--------+ | | |localhost | | | ||
| | | | | | | | | | ||
| | | | | | | | | | ||
| | +----------------+ | | +----------------+ | | ||
| +-------------------------------------------+ +-------------------------------------------+ | ||
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| SOCKS 4a Diagram: | ||
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| Incoming Connections Remote Services | ||
| +--------+ +--------+ | ||
| |L Port +----+ +------> R Port | | ||
| +--------+ | | +--------+ | ||
| | | | ||
| +--------+ | +------------+ +------------| | +--------+ | ||
| |L Port +----+------>| SOCKS 4a L |-------------------------->| SOCKS 4a R |---+------> R Port | | ||
| +--------+ | +------------+ +------------| | +--------+ | ||
| | | | ||
| +--------+ | | +--------+ | ||
| |L Port +----+ +------> R Port | | ||
| +--------+ +--------+ | ||
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| Every "L Port" is mapped to a "R Port" in the remote server | ||
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