Security Resilience

CVE-2023-40050

RCE in Chef Automate ≤ 4.10.29

Published
31 October 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 9.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score 0.012 67th percentile
Risk Priority 80 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-2023-40050 is a critical-severity Code Injection (CWE-94) vulnerability in Chef Automate. Its CVSS base score is 9.9 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Data Obfuscation (T1001); ranked in the top 33% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

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-2023-40050 is a remote code execution vulnerability affecting Chef Automate versions up to and including 4.10.29. It stems from insufficient validation when users upload InSpec profiles through either the API or the web interface; a maliciously crafted profile supplied to the InSpec check command can cause arbitrary code to execute on the server. The flaw is tracked under CWE-94 and CWE-434 and carries a CVSS 3.1 score of 9.9.

An attacker who already possesses low-privileged credentials can exploit the issue over the network without user interaction. Successful exploitation grants the ability to run arbitrary commands with high impact on confidentiality, integrity, and availability, and the changed scope indicates the compromise can affect resources beyond the Automate instance itself.

Progress Chef has published a Product Alert Bulletin and updated release notes that direct customers to apply the remediation contained in versions newer than 4.10.29. The current and peak EPSS score for the CVE is 0.1727; no material rise after disclosure is recorded in the available data.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Upload profile either through API or user interface in Chef Automate prior to and including version 4.10.29 using InSpec check command with maliciously crafted profile allows remote code execution.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001 Data Obfuscation Command And Control
Adversaries may obfuscate command and control traffic to make it more difficult to detect.
T1001.001 Junk Data Command And Control
Adversaries may add junk data to protocols used for command and control to make detection more difficult.
T1001.003 Protocol or Service Impersonation Command And Control
Adversaries may impersonate legitimate protocols or web service traffic to disguise command and control activity and thwart analysis efforts.
T1003.004 LSA Secrets Credential Access
Adversaries with SYSTEM access to a host may attempt to access Local Security Authority (LSA) secrets, which can contain a variety of different credential materials, such as credentials for service accounts.
T1003.005 Cached Domain Credentials Credential Access
Adversaries may attempt to access cached domain credentials used to allow authentication to occur in the event a domain controller is unavailable.
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…
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-42658Same vendor: Chef
CVE-2023-6846Shared CWE-434, CWE-94
CVE-2025-22133Shared CWE-434, CWE-94
CVE-2025-34086Shared CWE-434, CWE-94
CVE-2023-48217Shared CWE-434, CWE-94
CVE-2026-25510Shared CWE-434, CWE-94
CVE-2023-5604Shared CWE-434, CWE-94
CVE-2024-40546Shared CWE-434, CWE-94
CVE-2024-7559Shared CWE-434, CWE-94
CVE-2021-25003Shared CWE-434, CWE-94

Affected Assets

chef
automate
≤ 4.10.29

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.1.1
  • V1.3.1

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-434 CWE-94

Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.

addresses: CWE-434

Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.

addresses: CWE-94

Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.

addresses: CWE-434

Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.

addresses: CWE-94

Validates inputs used in dynamic code generation to block injected directives.

addresses: CWE-94

Directly prevents execution of attacker-supplied code written into data memory regions.

addresses: CWE-434

Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.

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 mostly match
blocks

PR.PS-06's SDLC practices directly target injection flaws via secure coding and testing (mostly), yet as a single broad outcome it leaves many code-generation specifics unaddressed (partial).

PR.PS-01 partial match
blocks

Hardened configuration baselines can enforce allowed file types and processing rules.

PR.PS-05 partial match
blocks

Restricting execution of unauthorized software directly blocks dangerous uploaded files from running.

PR.DS-10 none match
blocks

PR.DS-10 protects runtime data confidentiality/integrity but has no bearing on neutralizing externally influenced input during code generation, so neither direction shows any preventive effect.

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.

References