Vulnerability Details : CVE-2021-32984
All programming connections receive the same unlocked privileges, which can result in a privilege escalation. During the time Automation Direct CLICK PLC CPU Modules: C0-1x CPUs with firmware prior to v3.00 is unlocked by an authorized user, an attacker can connect to the PLC and read the project without authorization.
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-32984
- cpe:2.3:o:automationdirect:c0-10dd1e-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-10dd2e-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-10dre-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-10are-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-11dd1e-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-11dd2e-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-11dre-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-11are-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dd1e-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dd2e-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dre-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12are-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dd1e-1-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dd2e-1-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dre-1-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12are-1-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dd1e-2-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dd2e-2-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12dre-2-d_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:automationdirect:c0-12are-2-d_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-32984
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-32984
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
ICS-CERT | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-32984
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: nvd@nist.gov (Primary)
-
The product requires authentication, but the product has an alternate path or channel that does not require authentication.Assigned by: ics-cert@hq.dhs.gov (Secondary)
References for CVE-2021-32984
-
https://www.cisa.gov/uscert/ics/advisories/icsa-21-166-02
Automation Direct CLICK PLC CPU Modules | CISAThird Party Advisory;US Government Resource
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