Showing posts with label Attacks. Show all posts
Showing posts with label Attacks. Show all posts

Monday, November 25, 2013

Another case of what is old is new again

It has happened again and one has to ask what it takes for companies to learn from their mistakes.

I think everyone has read the articles on the latest Adobe breach and the disclosure of records of users. Of course we are not talking about a small number of users - we are talking 150 Million accounts, 38 Million of them active and 2.9 Million accounts with credit card information. The data that was taken included:

  • clear-text email addresses
  • hashed passwords
  • encrypted credit card information
  • clear-text hint lists
It is unknown how well protected the encrypted credit card information is but certainly the clear-text email addresses/usernames and clear-text hint lists create significant threat to users especially when some of the hints were "Same as bank account". 

The hashed password list is a significant issue as it appears that these were just hashed - no salt values were used to make the hashed password more complex.

Of course this is not a good situation for Adobe customers or Adobe itself. Even worse for Adobe - this is not the first time this has happened - not even the first time recently. In 2012 the Connect conferencing forum back-end was hacked and a similar data trove taken. In 2012 approximately 150,000 users were exposed. The data taken - clear-text email addresses and MD5 hashed passwords with no salt values used. It was not like this breach was not made public as the purported perpetrator released a screenshot of 230 of the user accounts. 

So why has Adobe not fixed their back-end for storing of customer data? Adobe does know that they are a target - these were not the first attacks against Adobe - in the same 2012-2013 period you also had the hack into the signing process that allowed malware to be signed using Adobe credentials and; the theft of source code for Acrobat, Cold Fusion and Photoshop that eventually led to two well known attacks against PR Newswire and the Washington State Court System.

We have talked about the simple processes before - be aware of what you are doing and using in your systems such that when vulnerabilities are being exploited against those same tools and processes you use you can be aware and implement changes to protect yourself. Adobe did not even do this when it was a vulnerability that they had before.

I am not suggesting here that Adobe needs to be put in the corner with the dunce hat on but for users that may have accounts with Adobe learn the lesson that Adobe did not - and rather than exposing yourself to attacks because of password reuse use a methodology of unique passphrases across your essential accounts. If Adobe cannot do anything to protect your data - you certainly can.

Tuesday, January 17, 2012

Sykipot Update

As I mentioned in my last post - one of my concerns was the possibility that a hacker could leverage the PIN access and the card update capability of the ActivClient to introduce malware on the card. After some investigation it appears that with the use of the Global Platform implementation it would be an extremely complex feat to execute. I do not believe it is impossible but the level of effort does not appear to have been taken and it would only be capable of happening during an actual card update which in most cases would be CMS initiated. There does not appear to be anything the data that has been released to indicate that there is a trigger for the action - so maybe one less concern.

Friday, January 13, 2012

Is this Sykipot something new?

Undoubtedly you have all seen the news of the alleged attack via Sykipot against US government smartcards. Of course the press has taken ahold of this with all of its usual gusto but is this really something new?

Well yes there are new elements to it - it appears to be the first Sykipot variant that appears to have specifically targeted a specific client and middleware to access smartcards for the purpose of utilizing the private keys for access to data. That being said the actually attack vector is not new and has been looked at for many years. This attack has the same sort of path as any man-in-the-browser style attack - deliver command and control elements to the target; install a key logger to capture and; once having determined that the target is viable then deliver the elements necessary to execute a complete attack. The major issue here is that fundamentally this was once again initiated through spear-phishing to deliver the required infrastructure to build the attack and possibly leverage it.

We are once again facing a massive push against a technology that fundamentally is not at fault here. If we look back at some of the attacks like this that occurred last year - it was not the technology but the implementation and the processes around the technology that are being leveraged to attack. It fundamentally did not matter what the underlying technology was. This Sykipot attack, ten years ago, would have been a key logger capturing userid and passwords, and just as likely could have been that today for many systems. However because it is smartcards it is now big news.

So is there really an issue - well quite possibly yes - and it could be big. Yes it is a problem that the card can be used when inserted without the user knowing it is being used - this is of course a major issue. There is however a potentially larger issue and the outcome of the investigations will determine if it is a real issue or not. The ActivClient does have a variant that is deployed to allow the local user to update their card. If in fact this Sykipot variant is hijacking the interaction with the ActivClient is it possible that the card can then be infected with malware? The threat of malware on the card is likely the worse case scenario. I know of no virus software that scans cards on insertion and it could be possible that this malware could be transmitted to devices via the contact and contact-less interface which would mean delivery to many platforms, possibly without knowledge. Of course right now this is speculation but hopefully one of the paths that is being investigated.

It will be interesting to see what comes out of the investigations and what gets publicized. For this interested in getting a base set of info on the attack check out the Alienvault article.


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