Use of hard-coded credentials in Siemens LOGO!



| Updated: 2019-06-19
Risk High
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2019-10920
CWE-ID CWE-798
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 LOGO!
Hardware solutions / Firmware

Vendor Siemens

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Use of hard-coded credentials

EUVDB-ID: #VU18843

Risk: High

CVSSv4.0: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2019-10920

CWE-ID: CWE-798 - Use of Hard-coded Credentials

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to vulnerable device.

The vulnerability exists due to presence of hard-coded credentials in application code. A remote unauthenticated attacker with access to port 10005/tcp can decrypt project data with a hardcoded encryption key.


Mitigation

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

Vendor's recommendation:
  • Apply Defense-in-Depth concept, including protection concept outlined in the system manual.

Vulnerable software versions

LOGO!: 1.0 - 8.2.1

CPE2.3 External links

https://cert-portal.siemens.com/productcert/pdf/ssa-542701.pdf


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.



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