Input validation error in Dameware Mini Remote Client agent and Dameware Remote Mini Control - CVE-2019-3980

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the affected software supports smart card authentication by default which allows a user to upload an executable to be executed on the DWRCS.exe host. The executable will be saved in C:\Windows\Temp\ as dwDrvInst.exe and executed with the privileges of the Local System account. An unauthenticated, remote attacker can request smart card login and upload and execute an arbitrary executable run under the Local System account.

PoC:

 python dwrcs_dwDrvInst_rce.py -t  -e 

Affected software

How to mitigate CVE-2019-3980

Links to Public Exploits and PoC-codes

• Exploit #6910 - CVE-2019-3980 (CVE-2019-3980 exploit written in win32/c++ (openssl dependency). Port of https://github.com/tenable/poc/blob/master/Solarwinds/Dameware/dwrcs_dwDrvInst_rce.py) (October 20, 2021)

External References

• https://github.com/tenable/poc/blob/master/Solarwinds/Dameware/dwrcs_dwDrvInst_rce.py
• https://www.tenable.com/security/research/tra-2019-43

Related Security Bulletins

• Remote code execution in Solarwinds Dameware Mini Remote Client agent