What is CVE-2021-27392?

CVE-2021-27392 is a high-severity vulnerability in Siemens Siveillance Video Open Network Bridge, classified under Use of Hard-coded Cryptographic Key. CVSS score: 8.8/10. Published 2021-04-22.

How severe is CVE-2021-27392?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Siemens Siveillance Video Open Network Bridge

CVE-2021-27392

A vulnerability has been identified in Siveillance Video Open Network Bridge (2020 R3), Siveillance Video Open Network Bridge (2020 R2), Siveillance Video Open Network Bridge (2020 R1), Siveillance Video Open Network Bridge (2019 R3), Siveillance Video Open Network Bridge (2019 R2), Siveillance Video Open Network Bridge (2019 R1), Siveillance Video Open Network Bridge (2018 R3), Siveillance Video Open Network Bridge (2018 R2). Affected Open Network Bridges store user credentials for the authentication between ONVIF clients and ONVIF server using a hard-coded key. The encrypted credentials can be retrieved via the MIP SDK. This could allow an authenticated remote attacker to retrieve and decrypt all credentials stored on the ONVIF server.

EPSS: 0.012 (64.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Siemens Siveillance Video Open Network Bridge — versions 2020 R3, 2020 R2, 2020 R1
Siemens Siveillance_video_open_network_bridge — versions 2018, 2019, 2020

Weakness classification (CWE)

References

productcert@siemens.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-27392?: CVE-2021-27392 is a high-severity vulnerability in Siemens Siveillance Video Open Network Bridge, classified under Use of Hard-coded Cryptographic Key. CVSS score: 8.8/10. Published 2021-04-22.
How severe is CVE-2021-27392?: High severity. CVSS v3 base score is 8.8 out of 10.