Microsoft VBScript and JScript CVE-2015-6136 Remote Memory Corruption Vulnerability

Description

Microsoft VBScript and JScript are prone to a remote memory-corruption vulnerability. Attackers can exploit this issue by enticing an unsuspecting user to view a specially crafted web page. Attackers can take advantage of this vulnerability to execute arbitrary code in the context of the currently logged-in user. Failed attacks will cause denial-of-service conditions. The following products are vulnerable: Internet Explorer 8, 9, 10, and 11 Microsoft JScript 5.8 Microsoft VBScript 5.8

Technologies Affected

• Microsoft Internet Explorer 10
• Microsoft Internet Explorer 11
• Microsoft Internet Explorer 8
• Microsoft Internet Explorer 9
• Microsoft JScript 5.8
• Microsoft VBScript 5.8

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.