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Rewterz Threat Advisory – Siemens SIMATIC Panels and WinCC (TIA Portal) Multiple Vulnerabilities

Severity

Medium

Analysis Summary


CVE-2019-6572

The affected devices offer SNMP read/write capabilities with a hardcoded community string, which may allow an attacker to read/write variables over SNMP. This could compromise the confidentiality and integrity of the affected system.

CVE-2019-6576

An attacker with network access could potentially obtain a TLS session key and use it to decrypt TLS traffic. This could impact the confidentiality of communications between the device and a legitimate user.

CVE-2019-6577

The integrated web server could allow a cross-site scripting (XSS) attack if an attacker is able to modify certain device configuration settings via SNMP. This could impact confidentiality and integrity of the affected system.

Impact

  • Use of Hard-coded Credentials
  • Insufficient Protection of Credentials
  • Cross-site Scripting

Affected Vendors

Siemens

Affected Products

  • SIMATIC WinCC Runtime Advanced
  • WinCC Runtime Professional
  • WinCC (TIA Portal)
  • HMI Panels

Remediation

Siemens has updates at for the following products:

https://support.industry.siemens.com/cs/ww/en/view/109763890/