SB2017051217 - Buffer overflow in Microsoft Windows RDP for Windows XP/2003
Published: May 12, 2017 Updated: June 29, 2017
Security Bulletin ID
SB2017051217
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2017-0176)
The vulnerability allows a remote attacker to compromise vulnerable system.The vulnerability exists due to a boundary error in the Smart Card authentication code in gpkcsp.dll within Windows Remote Desktop services. A remote attacker can send specially crafted packets to the vulnerable system, trigger buffer overflow and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to gain complete control over the affected system.
Note: this vulnerability was publicly disclosed by the Shadow Brokers hacking team along with a fully functional exploit known as "“EsteemAudit".
The vulnerability is being exploited in the wild.
Remediation
Install update from vendor's website.