CVE-2024-52538
📋 TL;DR
This SQL injection vulnerability in Dell Avamar allows low-privileged remote attackers to execute arbitrary SQL commands, potentially leading to script injection. Affected systems include Dell Avamar versions prior to 19.12 (excluding certain patched 19.10 versions).
💻 Affected Systems
- Dell Avamar
- Dell Avamar Virtual Edition
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the Avamar database, data exfiltration, privilege escalation to administrative access, and potential lateral movement within the environment.
Likely Case
Data leakage from the Avamar database, manipulation of backup metadata, and potential denial of service affecting backup operations.
If Mitigated
Limited impact due to network segmentation and proper access controls restricting low-privileged user access to vulnerable interfaces.
🎯 Exploit Status
Requires low-privileged credentials. SQL injection vulnerabilities are typically easy to exploit with readily available tools.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 19.12 with patch 338905, or 19.10/19.10SP1 with patch 338869
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Dell Support. 2. Apply patch 338905 for version 19.12 or patch 338869 for versions 19.10/19.10SP1. 3. Restart the Avamar services as required by the patch documentation.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Avamar management interfaces to only trusted administrative networks.
Access Control
allImplement strict access controls to limit low-privileged user access to vulnerable interfaces.
🧯 If You Can't Patch
- Isolate Avamar systems from untrusted networks using firewall rules
- Implement web application firewall (WAF) rules to detect and block SQL injection patterns
🔍 How to Verify
Check if Vulnerable:
Check Avamar version via administrative interface or CLI. If version is prior to 19.12 (and not 19.10/19.10SP1 with patch 338869), the system is vulnerable.Check Version:
On Avamar server: avmgr versionVerify Fix Applied:
Verify patch installation through Avamar patch management interface or by checking version/patch level matches the fixed versions.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns in Avamar logs
- Multiple failed authentication attempts followed by SQL errors
- Unexpected database access from non-administrative accounts
Network Indicators:
- SQL injection patterns in HTTP requests to Avamar management interfaces
- Unusual outbound database connections from Avamar servers
SIEM Query:
source="avamar" AND ("sql" OR "injection" OR "syntax error")