Cleartext transmission of sensitive information in Siemens SIMATIC HMI Panels



Published: 2020-07-15
Risk Medium
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2020-7592
CWE-ID CWE-319
Exploitation vector Local network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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SIMATIC HMI KTP700F
Server applications / SCADA systems

SIMATIC WinCC Runtime Advanced
Server applications / SCADA systems

SIMATIC HMI Basic Panels 1st Generation
Server applications / SCADA systems

SIMATIC HMI Basic Panels 2nd Generation
Server applications / SCADA systems

SIMATIC HMI Comfort Panels
Server applications / SCADA systems

SIMATIC HMI Mobile Panels 2nd Generation
Server applications / SCADA systems

Vendor Siemens

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Cleartext transmission of sensitive information

EUVDB-ID: #VU29926

Risk: Medium

CVSSv3.1: 5.4 [CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:U/RC:C]

CVE-ID: CVE-2020-7592

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to software uses insecure communication channel to transmit sensitive information. A remote attacker with ability to intercept network traffic can gain access to sensitive data.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

SIMATIC HMI KTP700F: All versions

SIMATIC WinCC Runtime Advanced: All versions

SIMATIC HMI Basic Panels 1st Generation: All versions

SIMATIC HMI Basic Panels 2nd Generation: All versions

SIMATIC HMI Comfort Panels: All versions

SIMATIC HMI Mobile Panels 2nd Generation: All versions

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-364335.pdf


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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