We hope some of you find this library useful when working with WCF Services. For example, an XML file like this: < example.xml wcf2xml.py example.bin./wcf2xml.py < example.bin The commandline interface consists of two python scripts: Script The library has a rudimentary commandline interface for converting XML to WCF binary and vice versa, as well as a plugin for our python-to-Burp plugin ( pyBurp). Thatâs why we decided to write a small python library according to Microsoftâs Open Specification which enables us to decode and encode WCF binary streams. Another disadvantage is the validation and auto-correction feature of such libraries⦠not very useful for penetration testing â¡ NET library which means one either has to work on MS Windows or with Mono. But all WCF binary plugins out there are based on the. Our first tool of choice for webapp pentests (Burp Suite) has also a plugin feature, and one can also find plugins for decoding (and encoding XML back to) WCF binary streams. Sadly, these plugins can only decode and display the binary content as XML text. One possibility is Fiddler.įiddlerâs strengths include its extensibility and its WCF binary plugins. If you have to (pen-) test such services, it would be nice to read (and modify) the communication between (for example) clients and servers. Microsoft uses this protocol to save some time parsing the transmitted XML data. NET environment WCF services can use the proprietary WCF binary XML protocol described here.
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