This post was written by Jaeson Schultz.
On October 14th information related to a new Windows vulnerability, CVE-2014-4114, was published. This new vulnerability affects all supported versions of Microsoft Windows. Windows XP, however, is not affected by this vulnerability. The problem lies in Windows’ OLE package manager. When triggered it allows for remote code execution.
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Tags: 0-day, malware, Talos
This post was authored by Yves Younan
Microsoft Tuesday is here once again and this month they are releasing a total of eight bulletins. Three of which are rated as critical, while the remaining five are rated as important. There’s a total of 24 CVEs this month, 20 of which were privately disclosed to Microsoft and four which are either publicly known or under active attack, making them 0-day vulnerabilities. Of those four, two are being actively attacked, while two have been publicly disclosed but do not seem to be under attack for supported software. Of the 24 CVEs, 15 are categorized as allowing remote code execution, four as elevation of privilege and three as security feature bypasses.
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Tags: 0-day, coverage, ms tuesday, rules, security, Talos
Update 5-1-2014: We can confirm Cisco customers have been targets of this attack. For the latest coverage information and additional details see our new post on the VRT blog.
The recent discovery of a new Internet Explorer zero-day exploit underlines how exposed web browsers are to vulnerabilities for which a patch is yet to be released. Cisco is aware of the issue and is releasing IPS signature 4256-0 and Snort signatures 30794, 30803 to detect the exploitation of this vulnerability. You can read more details from Cisco here.
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Tags: 0-day, CVE-2014-1776, TRAC
We’re seeing reports of exploitation of this vulnerability. We can confirm Global Correlation - Network Participation telemetry is seeing multiple exploitation attempts across many customers. Customers who participate in Global Correlation -- Inspection have a higher chance of this signature blocking in the default configuration since the sensor will take the reputation of an attacker into account during the risk rating evaluation. One of the reports mentioned the use of an IRC-based botnet as a payload for a large number of compromised machines. Since this report is similar to one I previously blogged about, I examined the IRC payloads in depth. Many of the variable names and functions are identical, with the new bot’s source code indicating that it is a later revision of the one we saw previously. Additional features have been added in this revision, which can allow the bots to transfer files directly to other bots via the command and control channel. Given the nature of this vulnerability and the ease of exploitation, it is very likely that unpatched machines will continue to be compromised if not remediated.
A 0-day vulnerability has been publicly posted which affects older versions of the Parallels Plesk software. The author of the exploit included an informational text file, which appears to indicate public servers have already been exploited. This vulnerability does not affect the latest major version of the software; nevertheless we expect to see widespread exploitation, due to the age of the affected versions — sites still running these versions of Plesk, which should enter End of Life of June 9, are unlikely to be regularly maintained.
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Tags: 0-day, exploits, malware, security, TRAC