Vulnerability · Published Jun 4, 2021 · Assigned by jci
CVE-2021-27657Metasys Improper Privilege Management
High 8.8
In plain English
A high-severity privilege mismanagement in Metasys from Johnson Controls. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.2%top 30.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Johnson Controls | Metasys | 11.0 – through 11.0 |
Weakness: CWE-269 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories x_refsource_CONFIRM
- ICS-CERT Advisory third-party-advisory, x_refsource_CERT
- ICS-CERT Advisory third-party-advisory, x_refsource_CERT