Vulnerability Details : CVE-2021-27657
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.
Products affected by CVE-2021-27657
- cpe:2.3:a:johnsoncontrols:metasys:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27657
0.28%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27657
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
Johnson Controls |
CWE ids for CVE-2021-27657
-
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.Assigned by:
- nvd@nist.gov (Primary)
- productsecurity@jci.com (Secondary)
References for CVE-2021-27657
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-01
Johnson Controls Metasys | CISAThird Party Advisory;US Government Resource
-
https://us-cert.gov/ics/advisories
ICS-CERT Advisories | CISAThird Party Advisory;US Government Resource
-
https://www.johnsoncontrols.com/cyber-solutions/security-advisories
Product Security AdvisoriesVendor Advisory
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