Security Resilience

CVE-2023-2685

Abb Ao-Opc 1.0.0 – 3.2.1

Published
28 July 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 7.2
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.0017 6th percentile
Risk Priority 48 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-2685 is a high-severity Unquoted Search Path or Element (CWE-428) vulnerability in Abb Ao-Opc. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique LSASS Memory (T1003.001); ranked at the 6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

A vulnerability was found in AO-OPC server versions mentioned above. As the directory information for the service entry is not enclosed in quotation marks, potential attackers could possibly call up another application than the AO-OPC server by starting the service.…

more

The service might be started with system user privileges which could cause a shift in user access privileges. It is unlikely to exploit the vulnerability in well maintained Windows installations since the attacker would need write access to system folders. An update is available that resolves the vulnerability found during an internal review in the product AO-OPC = 3.2.1

CWE(s)
CWE-428

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003.001 LSASS Memory Credential Access
Adversaries may attempt to access credential material stored in the process memory of the Local Security Authority Subsystem Service (LSASS).
attack.mitre.org →
T1003.002 Security Account Manager Credential Access
Adversaries may attempt to extract credential material from the Security Account Manager (SAM) database either through in-memory techniques or through the Windows Registry where the SAM database is stored.
attack.mitre.org →
T1003.006 DCSync Credential Access
Adversaries may attempt to access credentials and other sensitive information by abusing a Windows Domain Controller's application programming interface (API)(Citation: Microsoft DRSR Dec 2017) (Citation: Microsoft GetNCCChanges) (Citati…
attack.mitre.org →
T1007 System Service Discovery Discovery
Adversaries may try to gather information about registered local system services.
attack.mitre.org →
T1011 Exfiltration Over Other Network Medium Exfiltration
Adversaries may attempt to exfiltrate data over a different network medium than the command and control channel.
attack.mitre.org →
T1016.001 Internet Connection Discovery Discovery
Adversaries may check for Internet connectivity on compromised systems.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-5402Same vendor: Abb
CVE-2025-57227Shared CWE-428
CVE-2019-25285Shared CWE-428
CVE-2024-4461Shared CWE-428
CVE-2025-66461Shared CWE-428
CVE-2025-1984Shared CWE-428
CVE-2016-20092Shared CWE-428
CVE-2023-6631Shared CWE-428
CVE-2023-38408Shared CWE-428
CVE-2016-20058Shared CWE-428

Affected Assets

abb
ao-opc
1.0.0 — 3.2.1

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 partial match
blocks

Secure SDLC practices directly prevent path-handling flaws such as unquoted elements during development.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.5.14 Information transfer partial match
removes
A.5.15 Access control partial match
removes
A.5.16 Identity management partial match
removes
A.5.17 Authentication information partial match
removes
A.5.18 Access rights partial match
removes
A.5.4 Management responsibilities partial match
removes

References