Security Resilience

CVE-2023-37243

Atera Agent Package Availability ≤ 0.15.0.0

Published
31 October 2023
Modified
21 November 2024
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0018 7th percentile
Risk Priority 55 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-2023-37243 is a high-severity Creation of Temporary File in Directory with Insecure Permissions (CWE-379) vulnerability in Atera Agent Package Availability. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steganography (T1001.002); ranked at the 7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability Data

The C:\Windows\Temp\Agent.Package.Availability\Agent.Package.Availability.exe file is automatically launched as SYSTEM when the system reboots. Since the C:\Windows\Temp\Agent.Package.Availability folder inherits permissions from C:\Windows\Temp and Agent.Package.Availability.exe is susceptible to DLL hijacking, standard users can write a malicious DLL to it and elevate their privileges.

CWE(s)
CWE-379NVD-CWE-Other

Related Threats

MITRE ATT&CK Enterprise Techniques

T1001.002 Steganography Command And Control
Adversaries may use steganographic techniques to hide command and control traffic to make detection efforts more difficult.
attack.mitre.org →
T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
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 →
T1003.003 NTDS Credential Access
Adversaries may attempt to access or create a copy of the Active Directory domain database in order to steal credential information, as well as obtain other information about domain members such as devices, users, and access rights.
attack.mitre.org →
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.
attack.mitre.org →
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.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-9950Same product: Microsoft Windows
CVE-2023-3181Same product: Microsoft Windows
CVE-2026-69482Same vendor: Microsoft
CVE-2023-26396Same product: Microsoft Windows
CVE-2023-21612Same product: Microsoft Windows
CVE-2025-21173Same vendor: Microsoft
CVE-2023-26077Same product: Microsoft Windows
CVE-2023-26078Same product: Microsoft Windows
CVE-2023-21611Same product: Microsoft Windows
CVE-2023-40438Shared CWE-379

Affected Assets

atera
agent package availability
≤ 0.15.0.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 1 hardening rule · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)
  • V15.4.2

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 developers from writing code that creates temp files in insecure directories.

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.7.6 Working in secure areas partial match
removes
A.8.19 Installation of software on operational systems partial match
removes
A.8.26 Application security requirements partial match
removes

A.8.26 only requires that security requirements (including for file permissions) be identified and specified during development or acquisition; it does not itself mandate, design, or implement the secure creation of temporary files that would remove the CWE-379 flaw from the resulting product.

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

A.8.27 mandates security-by-design, hardening, least privilege, default-deny and distrust-external-input principles plus design reviews that can catch and block insecure temp-file permissions during architecture and implementation; this stops exploitation for many but not all instances (e.g. third-party libraries, runtime OS defaults, or post-deployment changes outside the engineering process).

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require safe temporary-file creation with restrictive permissions.

A.8.9 Configuration management partial match
removes

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` (higher-evidence rows only; rows rated `none` are excluded).

Oracle Linux 8 (1 rule)
  • V-248577 OL 8 must enable kernel parameters to enforce Discretionary Access Control (DAC) on symlinks. blocks CWE-379

References