Tuesday, May 06, 2008

A Quarter from Report to Disclosure: Respectable

From the CORE Advisory on Wonderware

WTF is Python?

* 2008-03-03: Core sends proof-of-concept code written in Python.
* 2008-03-05: Vendor asks for compiler tools required to use the PoC code.
* 2008-03-05: Core sends a link to http://www.python.org where a Python interpreter can be downloaded.

of the advisory is re-scheduled to March 31st 2008. With regards to the questions and requests about the contents of the security advisory, Core indicates that Core's technical publications are aimed at providing legitimate security practitioners worldwide with the technical details necessary to understand the nature of the security issues reported; so they are able to devise, by their own judgment, the risk mitigation approach that fits them the best. For that purpose, Core believes that it is fundamental that they have precise and accurate technical details about security issues -- as Wonderware itself has demonstrated with the request for further technical details and proof-of-concept code -- and that the whole reporting and disclosure process is transparent for scrutiny of all interested parties.

And back at ya..

The vendor says that is having trouble understanding what the value is in providing specific detail as to what technical issue is happening and asks for clarification to understand how this information would benefit organizations. The vendor acknowledges that the proof of concept code did help to replicate the issue and that without it, it would have needed more time to identify it from the report alone. The concern is that the details provided in the report may give a hacker a specific direction to look for the vulnerability. Finally, the vendor indicates that will have a better estimation for the rlease date of a fix by Friday March 28th, 2008.

A level playing field?

Thus, Core believes that it is necessary not only to indicate the mere existence of the bug, but also to explain how to uniquely identify it in the vulnerable software (to avoid confusion with all other known bugs or to differentiate it from others that may be discovered in the future). It is also important to determine how the vulnerability could be used by potential attackers so that proper detection mechanisms can be built, for example firewall rules, or IDS and antivirus signatures. While Core recognizes that this may provide some additional data to would-be attackers, clearly it also provides preciously needed information to the defenders thus, leveling a field on which Core believes the attackers are initially at advantage.

And all for just a DOS?

Welcome to the party!

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