Vulnerability Description
Successful exploitation of this vulnerability could give an authenticated Metasys user an unintended level of access to the server file system, allowing them to access or modify system files by sending specifically crafted web messages to the Metasys system. This issue affects: Johnson Controls Metasys version 11.0 and prior versions.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Johnsoncontrols | Metasys | <= 11.0 |
Related Weaknesses (CWE)
References
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-01Third Party AdvisoryUS Government Resource
- https://us-cert.gov/ics/advisoriesThird Party AdvisoryUS Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesVendor Advisory
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-01Third Party AdvisoryUS Government Resource
- https://us-cert.gov/ics/advisoriesThird Party AdvisoryUS Government Resource
- https://www.johnsoncontrols.com/cyber-solutions/security-advisoriesVendor Advisory
FAQ
What is CVE-2021-27657?
CVE-2021-27657 is a vulnerability with a CVSS score of 8.8 (HIGH). Successful exploitation of this vulnerability could give an authenticated Metasys user an unintended level of access to the server file system, allowing them to access or modify system files by sendin...
How severe is CVE-2021-27657?
CVE-2021-27657 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-27657?
Check the references section above for vendor advisories and patch information. Affected products include: Johnsoncontrols Metasys.