Vulnerability Details : CVE-2023-1256
The listed versions of AVEVA Plant SCADA and AVEVA Telemetry Server are vulnerable to an improper authorization exploit which could allow an unauthenticated user to remotely read data, cause denial of service, and tamper with alarm states.
Vulnerability category: BypassGain privilegeDenial of service
Products affected by CVE-2023-1256
- cpe:2.3:a:aveva:telemetry_server:2020r2:-:*:*:*:*:*:*
- cpe:2.3:a:aveva:telemetry_server:2020r2:sp1:*:*:*:*:*:*
- cpe:2.3:a:aveva:aveva_plant_scada:2020r2:-:*:*:*:*:*:*
- cpe:2.3:a:aveva:aveva_plant_scada:2020r2:update_10:*:*:*:*:*:*
- cpe:2.3:a:aveva:aveva_plant_scada:2023:-:*:*:*:*:*:*
- cpe:2.3:a:aveva:aveva_plant_scada:2023:update_10:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-1256
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-1256
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
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-2023-1256
-
The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.Assigned by: ics-cert@hq.dhs.gov (Primary)
References for CVE-2023-1256
-
https://www.cisa.gov/news-events/ics-advisories/icsa-23-073-04
AVEVA Plant SCADA and AVEVA Telemetry Server | CISAThird Party Advisory;US Government Resource
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