CVE-2022-45451 — Local privilege escalation due to insecure driver communication port permissions

Local privilege escalation due to insecure driver communication port permissions. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40173, Acronis Agent (Windows) before build 30600, Acronis Cyber Protect 15 (Windows) before build 30984

01What is this vulnerability?

Local privilege escalation due to insecure driver communication port permissions. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40173, Acronis Agent (Windows) before build 30600, Acronis Cyber Protect 15 (Windows) before build 30984.

02Affected products

Vendor	Product	Versions
Acronis	Acronis Cyber Protect Home Office	unspecified
Acronis	Acronis Agent	unspecified
Acronis	Acronis Cyber Protect 15	unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-08-31T14:43:49.464Z
• Last modified: 2024-10-01T17:50:36.690Z

09References

• security-advisory.acronis.com — https://security-advisory.acronis.com/advisories/SEC-4858
• security-advisory.acronis.com — https://security-advisory.acronis.com/SEC-5487