× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. July 2023

Re: DDM security issue.

Hello Rob,

Am 05.07.2023 um 21:45 schrieb Rob Berendt <robertowenberendt@xxxxxxxxx>:

Apparently IBM has this thing where if you try to log in with DDM and it fails it let's it run but runs it under QUSER. They have a fix to stop it.
But if you want to see how simple the hack is take a look at
https://blog.silentsignal.eu/2023/07/03/ibm-i-dde-vulnerability-cve-2023-30990/

Get the listed fix at:
https://www.ibm.com/support/pages/node/7008573?_ga=2.95221343.2134875826.1688585573-419637653.1688585573

Wow, finally! After this has been known for *ages*!

I wonder when they'll fix a similar issue with ObjectConnect (SAVRST*), spawning restore commands on the remote machine as QSECOFR when the local user is also QSECOFR. At least when using SNA as transport. I think this can be exploited for malevolently overwriting things.

:wq! PoC


As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.