Acronis Agent: Improper Verification of Cryptographic Signature
CVE-2023-41744 is a high-severity improper verification of cryptographic signature vulnerability in Acronis Agent from Acronis, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 30600 as the first without the flaw, so updating Acronis Agent to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.14% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Acronis Agent to 30600 or a later version.
- Update Acronis Cyber Protect 15 to 35979 or a later version.
- Update agent to 30600 or a later version.
- Read the advisory on security-advisory.acronis.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Acronis | Acronis Agent | before 30600 | 30600 |
| Acronis | Acronis Cyber Protect 15 | before 35979 | 35979 |
| Acronis | agent | before 30600 | 30600 |
| Acronis | cyber_protect | before 35979 | 35979 |
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
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- 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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.8 | High | NVD |
| CVSS 3.0 | 7.8 | High | CNA (acronis.com) |
Official description
Local privilege escalation due to unrestricted loading of unsigned libraries. The following products are affected: Acronis Agent (macOS) before build 30600, Acronis Cyber Protect 15 (macOS) before build 35979.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
More Improper Verification of Cryptographic Signature vulnerabilities (CWE-347)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- security-advisory.acronis.com/advisories/SEC-4728Release Notes
Other vulnerabilities in Acronis Agent
- 7.1 High severity
- 7.5 High severity
- 7.5 High severity
- 7.8 High severity
- 7.5 High severity
- 7.5 High severity
Recent Improper Verification of Cryptographic Signature vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
- 8.8 High severity
- 7.5 High severity
- 7.5 High severity
- 9.8 Critical severity
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