{"id":5346,"date":"2012-06-12T10:51:12","date_gmt":"2012-06-12T10:51:12","guid":{"rendered":"https:\/\/www.heartinternet.uk\/blog\/?p=5346"},"modified":"2012-06-12T10:51:12","modified_gmt":"2012-06-12T10:51:12","slug":"important-mysql-vulnerability","status":"publish","type":"post","link":"https:\/\/www.heartinternet.uk\/blog\/important-mysql-vulnerability\/","title":{"rendered":"Important: MySQL Vulnerability"},"content":{"rendered":"

Late yesterday evening, a security flaw was discovered in MySQL’s authentication system.<\/p>\n

Without going into too much detail (links explaining the technical details of the exploit are at the end of this post), some versions of MySQL will allow a successful login 1 in 256 times regardless of password (the username does seemingly have to be correct). Please note that this is not a vulnerability exclusive to Heart Internet in any way; it’s within MySQL’s authentication system.<\/b><\/p>\n

Most MySQL installations don’t allow root access over the network in a default install (and indeed are recommended not to be enabled), so the username part is still providing some protection.<\/p>\n

After checking our own database servers and our customer webservers (the servers you use to host your sites), we can confirm that we are not<\/b> vulnerable. If you’re hosted on the shared<\/i> platform (so Starter Pro, Home Pro, Business Pro and Reseller Pro hosting on either Linux or Windows) or you have a dedicated server, then you do not need to worry or take any action.<\/p>\n

Upgrading MySQL for VPS with Ubuntu<\/h4>\n

However, as part of responsible disclosure, we do know that some MySQL versions bundled with Ubuntu are affected; if you have an Ubuntu VPS<\/b> with us, you should upgrade MySQL immediately. From a command prompt:<\/p>\n

As root:<\/p>\n

apt-get install mysql-server<\/p>\n

Or, using sudo (the more ‘Ubuntu’ type way):<\/p>\n

sudo apt-get install mysql-server<\/p>\n

More information<\/h4>\n

For more information on the exploit, please see:<\/p>\n

• MySQL Password Flaw<\/a><\/p>\n

• A tragically comedic security flaw in MySQl<\/a><\/p>\n

If you have any questions or concerns, please do not hesitate to contact us by raising a support ticket.<\/p>\n

If you have web hosting elsewhere, you should contact your web host to find out if you need to take any steps to secure your websites.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

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