Vulnerability · Published Sep 15, 2021 · Assigned by jci
CVE-2021-27662KT-1 Capture-replay
High 8.6
In plain English
A high-severity security flaw in KT-1 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 0.8% (higher than 58% of all known vulnerabilities).
Severity (CVSS 3.1)8.6High
Exploit odds (30 days)0.8%top 41.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The KT-1 door controller is susceptible to replay or man-in-the-middle attacks where an attacker can record and replay TCP packets. This issue affects Johnson Controls KT-1 all versions up to and including 3.01
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Johnson Controls | KT-1 | all versions up to and including 3.01 – through 3.01 |
Weakness: CWE-294 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
References
- https://www.johnsoncontrols.com/cyber-solutions/security-advisories x_refsource_CONFIRM
- ICS-CERT Advisory third-party-advisory, x_refsource_CERT