CVE-2021-27453

Mesa Labs AmegaView authentication bypass

Description

Mesa Labs AmegaView Versions 3.0 uses default cookies that could be set to bypass authentication to the web application, which may allow an attacker to gain access.

Remediation

Workaround:

  • MesaLabs has scheduled AmegaView for end-of-life at the end of 2021. Due to this discontinued service, MesaLabs does not plan to release an update to address these vulnerabilities. MesaLabs recommends users upgrade to the newer ViewPoint software that is compatible with AmegaView hardware.
  • CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. Locate control system networks and remote devices behind firewalls, and isolate them from the business network. When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.

Category

7.3
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.21%
Third-Party Advisory cisa.gov
Affected: Mesa Labs AmegaView
Published at:
Updated at:

References

Link Tags
https://us-cert.cisa.gov/ics/advisories/icsa-21-147-03 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2021-27453?
CVE-2021-27453 has been scored as a high severity vulnerability.
How to fix CVE-2021-27453?
As a workaround for remediating CVE-2021-27453: MesaLabs has scheduled AmegaView for end-of-life at the end of 2021. Due to this discontinued service, MesaLabs does not plan to release an update to address these vulnerabilities. MesaLabs recommends users upgrade to the newer ViewPoint software that is compatible with AmegaView hardware.
Is CVE-2021-27453 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-27453 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-27453?
CVE-2021-27453 affects Mesa Labs AmegaView.
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