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According to DreamHost’s Status and Blog, staff noticed some unusual activity on one of their databases that held user login information for shell accounts. While the passwords were mostly encrypted, hackers “hacker found a legacy pool of unencrypted FTP/shell passwords in a database table that we had not previously deleted,” according to DreamHost CEO Simon Anderson.
As a precaution, ALL shell/FTP account passwords were reset by DreamHost. While it will cause some inconvenience for users trying to access their sites over SSH/FTP, the implications are much more serious. A lot of CMS systems store their database username and passwords in plaintext on configuration files. If whoever gained access to DreamHost’s shell account database and managed to decrypt the information, then they would have unmitigated access to not only sites’ files, but they could potentially (and most likely) gain access to the back-end database driving those sites with all user data. This could be a very major breach of user data from one of the largest web hosts in the United States.
DreamHost is being unusually mum about the technical details about the hack and is angering customers over their negligence regarding out-dated server software. While most front-end software is kept up-to-date, their back-end software is grossly outdated and there appears to be no real effort nor care by DreamHost to keep OS and back-end software updated. What makes things worse is that DreamHost’s official stance on their security solution is to not disclose what technologies they use. Rather than taking a proactive and relatively transparent stance to their own security systems, the company has decided to take-up a reactive and a “security through obscurity” stance.
Related articles
- DreamHost Security Issue Prompts FTP Password Resets (sucuri.net)
- Changing Shell/FTP Passwords due to Security Issue (dreamhoststatus.com)
- Security Update (dreamhost.com)
An older vulnerability in phpMyAdmin (CVE-2009-1151) is now being exploited by a botnet known as dd_ssh. Details are still emerging, but it appears that this new bot originated from 91.193.157.206 according to SANS. If the exploit of CVE-2009-1151 is successful on vulnerable phpMyAdmin installs, the files vmsplice.txt, dd.txt, and, in some instances, vm.c are downloaded from the aforementioned IP. The last of those files mentioned contains the vmsplice local root exploit (CVE2008-0600). After being compromised, the infected installations start making connections to multiple addresses on ports 54509 and 54510; most likely for command & control. SANS ISC is actively monitoring this apparent new botnet and has noticed a notable up-tick in machines scanning SSH lately.
More Info Over at SANS ISC and thanks goes to Briareos over at BroadBand Reports for the quick fact-finding and possible discovery.
