Beware of Zero-Day Microsoft Security Vulnerability: Sophos

IT security and data protection firm Sophos is advising computer users and administrators to exercise caution following the discovery of an as-yet un-patched security vulnerability in Microsoft software.
By Computerworld
News Jun 27th 2012

SophosLabs has determined that the website of a European aeronautical parts supplier - which is currently not being named due to the sensitivity of the situation - had been hacked, and a malicious attack planted on the website which exploits zero-day Microsoft security vulnerability.

Sophos was alerted to the security problem when a Sophos customer attempted to visit the affected website, and received a warning message that a file on the site was infected by code which attempts to exploit a vulnerability in Microsoft XML Core Services which could allow Remote Code Execution - a vulnerability known as CVE-2012-1889 - which has been linked to recent warnings from Google about 'state-sponsored attacks'.

Graham Cluley, Senior Technology Consultant at Sophos said "One way that hackers break into large companies and organizations is to target their supply chain. The theory goes that rather than try to hack a company which may have robust security practices and security teams, the bad actor can instead attack a smaller supplier who are less well placed to notice the security breach."