Cyber Resilience

CVE-2023-33873

HighLPE

Published: 15 November 2023

Published
15 November 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0014 33.2th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-33873 is a high-severity Execution with Unnecessary Privileges (CWE-250) vulnerability in Aveva Communication Drivers. Its CVSS base score is 7.8 (High).

Operationally, ranked at the 33.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

This privilege escalation vulnerability, if exploited, cloud allow a local OS-authenticated user with standard privileges to escalate to System privilege on the machine where these products are installed, resulting in complete compromise of the target machine.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

aveva
batch management
2020 · ≤ 2020
aveva
communication drivers
2020 · ≤ 2020
aveva
edge
≤ 20.1.101
aveva
enterprise licensing
≤ 3.7.002
aveva
historian
2020 · ≤ 2020
aveva
intouch
2020 · ≤ 2020
aveva
manufacturing execution system
2020 · ≤ 2020
aveva
mobile operator
2020 · ≤ 2020
aveva
plant scada
2020 · ≤ 2020
aveva
recipe management
2020 · ≤ 2020
+3 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-250

Policy promotes least privilege by defining necessary privileges and management commitment to them.

addresses: CWE-250

Supervision detects and allows removal of unnecessary privileges that enable execution with excess rights.

addresses: CWE-250

Reviewing accounts for compliance, disabling/removing unneeded accounts, and aligning with termination processes prevents execution with unnecessary privileges.

addresses: CWE-250

Separation of duties prevents any single user from holding all privileges needed to complete a critical task, directly reducing execution with unnecessary privileges.

addresses: CWE-250

Directly prevents execution with more privileges than needed for assigned tasks.

addresses: CWE-250

Role-based training on least privilege principles reduces the chance personnel assign or retain unnecessary privileges.

addresses: CWE-250

Analysis of audit records can identify execution with unnecessary privileges through unusual activity patterns.

addresses: CWE-250

Automatic termination after a defined period eliminates unnecessary privileges from persistent connections.

References