Microsoft VBScript and JScript CVE-2015-6135 Information Disclosure Vulnerability

ID SMNTC-78540
Type symantec
Reporter Symantec Security Response
Modified 2015-12-08T00:00:00



Microsoft VBScript and JScript are prone to a remote information disclosure vulnerability. Successful exploits will allow attackers to obtain sensitive information that may aid in further attacks. 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


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.