Vulnerability Details : CVE-2021-27662
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
Products affected by CVE-2021-27662
- cpe:2.3:o:johnsoncontrols:kantech_kt-1_door_controller_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-27662
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-27662
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST | |
|
8.6
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L |
3.9
|
4.7
|
Johnson Controls |
CWE ids for CVE-2021-27662
-
A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).Assigned by:
- nvd@nist.gov (Primary)
- productsecurity@jci.com (Secondary)
References for CVE-2021-27662
-
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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