Risk
High

Date Discovered
February 9, 2016

Description
Microsoft Internet Explorer is prone to a remote memory-corruption vulnerability. Attackers can exploit this issue by enticing an unsuspecting user to view a specially crafted webpage. Attackers can exploit this issue to execute arbitrary code in the context of the currently logged-in user. Failed attacks will cause denial-of-service conditions. Internet Explorer 9, 10, and 11 are vulnerable.

Technologies Affected
Microsoft Internet Explorer 11
Microsoft Internet Explorer 10
Microsoft Internet Explorer 9

Recommendations

  • Run all software as a nonprivileged user with minimal access rights.
  • To reduce the impact of latent vulnerabilities, always run nonadministrative software as an unprivileged user with minimal access rights.

  • Deploy network intrusion detection systems to monitor network traffic for malicious activity.
  • Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits

  • Do not follow links provided by unknown or untrusted sources.
  • Web users should be cautious about following links to sites that are provided by unfamiliar or suspicious sources. Filtering HTML from emails may help remove a possible vector for transmitting malicious links to users.

  • Implement multiple redundant layers of security.
  • Memory-protection schemes (such as nonexecutable stack and heap configurations and randomly mapped memory segments) will complicate exploits of memory-corruption vulnerabilities.

    Updates are available. Please see the references or vendor advisory for more information.

    References
    Microsoft - Microsoft Homepage
    Microsoft - Microsoft Internet Explorer Homepage