CVE-2022-45458
📋 TL;DR
This vulnerability allows attackers to bypass certificate validation in Acronis products, potentially leading to man-in-the-middle attacks, sensitive information disclosure, and unauthorized data manipulation. It affects Acronis Agent and Acronis Cyber Protect 15 across Windows, macOS, and Linux platforms.
💻 Affected Systems
- Acronis Agent
- Acronis Cyber Protect 15
📦 What is this software?
Agent by Acronis
⚠️ Risk & Real-World Impact
Worst Case
Attackers could intercept and manipulate all communications between Acronis agents and management servers, steal credentials, deploy ransomware, or exfiltrate backup data.
Likely Case
Man-in-the-middle attacks leading to credential theft, backup data interception, or unauthorized access to managed systems.
If Mitigated
Limited impact if network segmentation, certificate pinning, or strict firewall rules prevent unauthorized network access.
🎯 Exploit Status
Exploitation requires network access and ability to intercept communications. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Acronis Agent build 29633+, Acronis Cyber Protect 15 build 30984+
Vendor Advisory: https://security-advisory.acronis.com/advisories/SEC-3952
Restart Required: Yes
Instructions:
1. Download latest version from Acronis portal. 2. Install update on all affected systems. 3. Restart Acronis services. 4. Verify successful update.
🔧 Temporary Workarounds
Network Segmentation
allIsolate Acronis management traffic to trusted networks only
Firewall Rules
allRestrict network access to Acronis management ports (9876, 443) to trusted IPs only
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit attack surface
- Monitor network traffic for unusual certificate validation failures or MITM indicators
🔍 How to Verify
Check if Vulnerable:
Check Acronis Agent version via GUI or command line: acronis_agent --versionCheck Version:
acronis_agent --versionVerify Fix Applied:
Verify version is 29633+ for Agent or 30984+ for Cyber Protect 15📡 Detection & Monitoring
Log Indicators:
- Certificate validation failures
- Unexpected certificate changes
- Failed authentication attempts
Network Indicators:
- Unusual traffic patterns on port 9876
- MITM detection alerts
- SSL/TLS certificate anomalies
SIEM Query:
source="acronis" AND (event="certificate_failure" OR event="auth_failed")