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Rockwell RSLogix 19 - Denial of Service

🗓️ 14 Sep 2011 00:00:00Reported by Luigi AuriemmaType 
exploitdb
 exploitdb
🔗 www.exploit-db.com👁 43 Views

Rockwell RSLogix 19 - Denial of Service vulnerabilit

Code
#######################################################################

                             Luigi Auriemma

Application:  Rockwell RSLogix
              http://www.rockwellautomation.com/rockwellsoftware/design/rslogix5000/
Versions:     <= 19 (RsvcHost.exe 2.30.0.23)
Platforms:    Windows
Bug:          Denial of Service
Exploitation: remote
Date:         13 Sep 2011
Author:       Luigi Auriemma
              e-mail: [email protected]
              web:    aluigi.org


#######################################################################


1) Introduction
2) Bug
3) The Code
4) Fix


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===============
1) Introduction
===============


From vendor's website:
"With RSLogix 5000 programming software, you need only one software
package for discrete, process, batch, motion, safety and drive-based
application."


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======
2) Bug
======


RsvcHost.exe and RNADiagReceiver.exe listen on ports 4446 and others.

These services use RnaUtility.dll which doesn't handle the 32bit size
field located in the "rna" packets with results like a memset zero
overflow and invalid read access.


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===========
3) The Code
===========


http://aluigi.org/poc/rslogix_1.zip
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/17843.zip

  nc SERVER 4446 < rslogix_1a.dat
  nc SERVER 4446 < rslogix_1b.dat


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======
4) Fix
======


No fix.


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14 Sep 2011 00:00Current
7.4High risk
Vulners AI Score7.4
43