WSSAT – Web Service Security Assessment Tool

WSSAT is an open source web service security scanning tool which provides a dynamic environment to add, update or delete vulnerabilities by just editing its configuration files. This tool accepts WSDL address list as input file and for each service, it performs both static and dynamic tests against the security vulnerabilities. It also makes information disclosure controls. With this tool, all web services could be analyzed at once and the overall security assessment could be seen by the organization.

Objectives of WSSAT are to allow organizations:

Perform their web services security analysis at once

See overall security assessment with reports

Harden their web services

WSSAT’s main capabilities include:

Dynamic Testing:

Insecure Communication – SSL Not Used

Unauthenticated Service Method

Error Based SQL Injection

Cross Site Scripting

XML Bomb

External Entity Attack – XXE

XPATH Injection

Verbose SOAP Fault Message

Static Analysis:

Weak XML Schema: Unbounded Occurrences

Weak XML Schema: Undefined Namespace

Weak WS-SecurityPolicy: Insecure Transport

Weak WS-SecurityPolicy: Insufficient Supporting Token Protection

Weak WS-SecurityPolicy: Tokens Not Protected

Information Leakage:

Server or technology information disclosure

WSSAT’s main modules are:


Vulnerabilities Loader



Report Generator

The main difference of WSSAT is to create a dynamic vulnerability management environment instead of embedding the vulnerabilities into the code.

This project has been developed as Term Project at Middle East Technical University (METU), Software Management master program.

Download WSSAT


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