SB2018032603 - Security restrictions bypass in SIMATIC WinCC OA UI
Published: March 26, 2018
Security Bulletin ID
SB2018032603
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2018-4844)
The vulnerability allows an adjacent attacker to bypass security restrictions on the target system.The weakness exists due to insufficient limitation of CONTROL script capabilities. An adjacent attacker can trick the victim into connecting to a malicious WinCC OA server and read and write data from and to the app’s project cache folder.
Remediation
Install update from vendor's website.