CVE-2022-3405
Published: 03 May 2023
Summary
CVE-2022-3405 is a high-severity Improper Privilege Management (CWE-269) vulnerability in Acronis Cyber Backup. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 2.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2022-3405 is a privilege-related flaw that permits remote code execution and disclosure of sensitive information because the Acronis Agent component is granted excessive privileges. The vulnerability affects Acronis Cyber Protect 15 on Windows and Linux prior to build 29486 as well as Acronis Cyber Backup 12.5 on the same platforms prior to build 16545, and carries a CVSS 3.1 base score of 8.8 reflecting an adjacent-network attack vector with no required authentication.
An attacker positioned on the same network segment can exploit the agent without user interaction to run arbitrary code and access confidential data on the affected host. The issue stems from CWE-269 improper privilege management within the agent service itself.
Public advisories from Acronis and usd Herolab recommend immediate upgrade to the fixed builds listed above; the vendor security bulletin SEC-4092 and the coordinated usd-2022-0008 disclosure both identify the precise builds that resolve the excessive-privilege condition. The associated EPSS score has remained flat at 0.4004 with no material increase since publication.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-42782
Vulnerability details
Code execution and sensitive information disclosure due to excessive privileges assigned to Acronis Agent. The following products are affected: Acronis Cyber Protect 15 (Windows, Linux) before build 29486, Acronis Cyber Backup 12.5 (Windows, Linux) before build 16545.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
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.
Policy addresses roles, responsibilities, and privilege management to prevent improper privilege assignments.
Access supervision ensures privileges are assigned and managed without improper escalation or retention.
Assigning group/role memberships and access authorizations (privileges) while reviewing accounts addresses improper privilege management.
Enforces proper privilege management by requiring all decisions through the verified reference monitor.
By mandating division of duties across roles, the control enforces proper privilege management and prevents a single entity from controlling an entire sensitive process.
Implements core proper privilege management by restricting to only required rights.
Policy requires training on privilege management and least privilege, making it harder to exploit improper privilege management weaknesses.
Training covers proper privilege management practices, making incorrect privilege assignments less likely.