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Backdoor.Win32.Kraimer.11 / Missing Authentication

CVE Category Price Severity
N/A CWE-200 N/A High
Author Risk Exploitation Type Date
Unknown High Remote 2021-01-23
CVSS EPSS EPSSP
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N 0.02192 0.50148

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021010169

Below is a copy:

Backdoor.Win32.Kraimer.11 / Missing Authentication
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/2a4fda4a6687981d32c2da7bdc1efcf1.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Kraimer.11
Vulnerability: Missing Authentication 
Description: Kraimer listens for commands on TCP port 6668, due to a lack of authentication anyone can telnet to the infected host. Seems only one established connection at a time is allowed, so if you telnet in then no other connections are honored. Therefore, if you make TCP connection and  theres already an established connection you will get refused.

Successful backdoor logon:

::KrAIMer 1.1:: 
-----MENU-----
 1) Help          
 2) View Log File            
 3) Start Key Logging                        
 4) Stop Key Logging 
 5) Time/Date
 6) View Saved Passwords                                         
 7) Reboot                                                                 
 8) Quit  

Type: PE32
MD5: 2a4fda4a6687981d32c2da7bdc1efcf1
Vuln ID: MVID-2021-0046
Disclosure: 01/22/2021

Exploit/PoC:
TELNET MALWARE_HOST_IP 6668


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