Cyber Resilience

CVE-2024-56347

Ibm Aix 7.2 … 7.3

Published
18 March 2025
Modified
25 July 2025
Patch / advisory
View advisory
CVSS Score v3.1 9.6
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS Score 0.0086 55th percentile
Risk Priority 69 floored blend · peak EPSS

Summary

CVE-2024-56347 is a critical-severity Process Control (CWE-114) vulnerability in Ibm Aix. Its CVSS base score is 9.6 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Shared Modules (T1129); ranked in the top 45% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to CM-7 (Least Functionality) and SC-18 (Mobile Code) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2024-56347 is a high-severity vulnerability in the nimsh service of IBM AIX 7.2 and 7.3. It arises from improper process controls in the SSL/TLS protection mechanisms, potentially allowing a remote attacker to execute arbitrary commands. The issue has a CVSS v3.1 base score of 9.6 (AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H) and maps to CWE-114 (Process Control). The vulnerability was published on 2025-03-18.

A remote attacker can exploit this over the network with low attack complexity and no privileges required, though user interaction is necessary. Upon successful exploitation, the attacker gains high-impact access to confidentiality, integrity, and availability, with a changed scope, enabling arbitrary command execution on the affected AIX system.

IBM provides details on mitigation in their security bulletin at https://www.ibm.com/support/pages/node/7186621.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

IBM AIX 7.2 and 7.3 nimsh service SSL/TLS protection mechanisms could allow a remote attacker to execute arbitrary commands due to improper process controls.

CWE(s)
CWE-114

Related Threats

MITRE ATT&CK Enterprise Techniques

T1129 Shared Modules Execution
Adversaries may execute malicious payloads via loading shared modules.
attack.mitre.org →
T1505.005 Terminal Services DLL Persistence
Adversaries may abuse components of Terminal Services to enable persistent access to systems.
attack.mitre.org →
T1574 Hijack Execution Flow Stealth
Adversaries may execute their own malicious payloads by hijacking the way operating systems run programs.
attack.mitre.org →
T1574.001 DLL Stealth
Adversaries may abuse dynamic-link library files (DLLs) in order to achieve persistence, escalate privileges, and evade defenses.
attack.mitre.org →
T1574.004 Dylib Hijacking Stealth
Adversaries may execute their own payloads by placing a malicious dynamic library (dylib) with an expected name in a path a victim application searches at runtime.
attack.mitre.org →
T1574.006 Dynamic Linker Hijacking Stealth
Adversaries may execute their own malicious payloads by hijacking environment variables the dynamic linker uses to load shared libraries.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-56346Same product: Ibm Aix
CVE-2024-25021Same product: Ibm Aix
CVE-2025-36251Same product: Ibm Aix
CVE-2025-36250Same product: Ibm Aix
CVE-2025-1950Same vendor: Ibm
CVE-2023-45165Same product: Ibm Aix
CVE-2025-0160Same vendor: Ibm
CVE-2025-36244Same product: Ibm Aix
CVE-2023-45171Same product: Ibm Aix
CVE-2024-27260Same product: Ibm Aix

Affected Assets

ibm
aix
7.2, 7.3

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 8 hardening rules · 6 OS baselines
Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

CM-7 Least Functionality good match

Least functionality directly restricts execution of commands or loading of libraries to only approved capabilities, stopping untrusted sources from being used.

SC-18 Mobile Code good match

Mobile code control explicitly defines and enforces acceptable sources and technologies for code/commands loaded at runtime.

SI-3 Malicious Code Protection good match

Malicious code protection mechanisms block execution or loading of code from untrusted sources before it can run.

CM-11 User-installed Software partial match

Policies and enforcement for user-installed software prevent introduction and execution of untrusted libraries or commands.

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-05 mostly match
prevents

Explicitly prevents execution of unauthorized software, directly blocking untrusted commands or libraries.

ID.RA-09 partial match
prevents

Assessing authenticity/integrity before acquisition reduces use of untrusted sources for commands/libraries.

PR.PS-01 partial match
prevents

Hardened configuration baselines can enforce trusted paths and execution policies.

PR.PS-06 partial match
prevents

Secure SDLC practices can embed checks against dynamic loading from untrusted sources.

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.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect unsafe process or library loading but does not prevent it by itself.

A.8.19 Installation of software on operational systems partial match
prevents

Restricting software installation prevents loading untrusted libraries or executing commands from unknown sources.

A.8.25 Secure development life cycle partial match
mitigates

Secure development lifecycle practices include controls on external code and command execution paths.

A.8.26 Application security requirements partial match
prevents

Application security requirements can mandate validation of external inputs and libraries.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles discourage reliance on untrusted external processes or libraries.

A.8.28 Secure coding partial match
prevents

Secure coding standards explicitly forbid executing or loading code from untrusted sources.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (3 rules)
  • V-248568 OL 8 system commands must be owned by root. prevents CWE-114
  • V-248567 OL 8 system commands must have mode 755 or less permissive. prevents CWE-114
  • V-248569 OL 8 system commands must be group-owned by root or a system account. prevents CWE-114
Windows 10 (1 rule)
  • V-220828 The default autorun behavior must be configured to prevent autorun commands. prevents CWE-114
Windows 11 (1 rule)
  • V-253387 The default autorun behavior must be configured to prevent autorun commands. prevents CWE-114
Windows Server 2016 (1 rule)
  • V-224933 The default AutoRun behavior must be configured to prevent AutoRun commands. prevents CWE-114
Windows Server 2019 (1 rule)
  • V-205805 Windows Server 2019 default AutoRun behavior must be configured to prevent AutoRun commands. prevents CWE-114
Windows Server 2022 (1 rule)
  • V-254353 Windows Server 2022 default AutoRun behavior must be configured to prevent AutoRun commands. prevents CWE-114

References