Acronis Cyber Protect 15: Improper Privilege Management
CVE-2022-3405 is a high-severity improper privilege management vulnerability in Acronis Cyber Protect 15 from Acronis, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited from the same local network by an unauthenticated attacker, without any action from a user. The record lists version 29486 as the first without the flaw, so updating Acronis Cyber Protect 15 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 5.33% chance of exploitation within 30 days, which is in the top 7.26% of all scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Acronis Cyber Protect 15 to 29486 or a later version.
- Update Acronis Cyber Backup 12.5 to 16545 or a later version.
- Read the advisory on herolab.usd.de for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Acronis | Acronis Cyber Protect 15 | before 29486 | 29486 |
| Acronis | Acronis Cyber Backup 12.5 | before 16545 | 16545 |
| Acronis | Cyber Backup | 12.5 | Not stated |
| Acronis | Cyber Protect | 15 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 3.0 | 9.3 | Critical | CNA (acronis.com) |
Official description
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.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
More Improper Privilege Management vulnerabilities (CWE-269)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- herolab.usd.de/security-advisories/usd-2022-0008/Exploit, Third Party Advisory
- security-advisory.acronis.com/advisories/SEC-4092
Other vulnerabilities in Acronis Cyber Protect 15
- 10.0 Critical severity
- 10.0 Critical severity
- 10.0 Critical severity
- 9.8 Critical severity
- 9.1 Critical severity
- 7.5 High severity
Recent Improper Privilege Management vulnerabilities
- 9.8 Critical severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 8.8 High severity
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