Microsoft Office CVE-2017-0195 Privilege Escalation Vulnerability

2017-04-11T00:00:00
ID SMNTC-97417
Type symantec
Reporter Symantec Security Response
Modified 2017-04-11T00:00:00

Description

Description

Microsoft Office is prone to a privilege-escalation vulnerability. An attackers may exploit this issue to gain elevated privileges.

Technologies Affected

  • Microsoft Excel Services on Microsoft SharePoint Server 2010 Service Pack 2
  • Microsoft Excel Services on Microsoft SharePoint Server 2013 Service Pack 1
  • Microsoft Excel Web App 2010 Service Pack 2
  • Microsoft Office Online Server
  • Microsoft Office Web Apps 2010 SP2
  • Microsoft Office Web Apps Server 2013 SP1

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 suspicious or anomalous activity. This may help detect malicious actions that an attacker may take after successfully exploiting vulnerabilities in applications. Review all applicable logs regularly.

Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.

Implement multiple redundant layers of security.
Since this issue may be leveraged to execute code, we recommend memory-protection schemes, such as nonexecutable stack/heap configurations and randomly mapped memory segments. This tactic may complicate exploits of memory-corruption vulnerabilities.

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