Microsoft SharePoint Server CVE-2014-2816 Remote Privilege Escalation Vulnerability

2014-08-12T00:00:00
ID SMNTC-69099
Type symantec
Reporter Symantec Security Response
Modified 2014-08-12T00:00:00

Description

Description

Microsoft SharePoint Server is prone to a remote privilege-escalation vulnerability. An attacker can exploit this issue to execute arbitrary code with elevated privileges in the context of the currently logged-in user. Successful exploits may aid in further attacks.

Technologies Affected

  • Microsoft SharePoint Foundation 2013
  • Microsoft SharePoint Foundation 2013 SP1
  • Microsoft SharePoint Server 2013
  • Microsoft SharePoint Server 2013 SP1

Recommendations

Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.

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 such as 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.

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