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symantecSymantec Security ResponseSMNTC-111123
HistoryDec 10, 2019 - 12:00 a.m.

Microsoft Git for Visual Studio CVE-2019-1349 Remote Code Execution Vulnerability

2019-12-1000:00:00
Symantec Security Response
www.symantec.com
22

Description

Microsoft Git for Visual Studio is prone to a remote code-execution vulnerability. Successful exploits allow attackers to execute arbitrary code in the context of the vulnerable application. Failed exploit attempts will result in a denial-of-service condition.

Technologies Affected

  • Microsoft Visual Studio 2017 15.0
  • Microsoft Visual Studio 2017 15.1
  • Microsoft Visual Studio 2017 15.8
  • Microsoft Visual Studio 2017 15.9
  • Microsoft Visual Studio 2019 16.0
  • Microsoft Visual Studio 2019 16.1
  • Microsoft Visual Studio 2019 16.2
  • Microsoft Visual Studio 2019 16.3
  • Microsoft Visual Studio 2019 16.4

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, block access at the network perimeter to computers hosting the vulnerable operating system.

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 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.
Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker’s ability to exploit this vulnerability to execute arbitrary code.

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