Path Traversal Vulnerability in NAKIVO Backup Software Exposes Sensitive Credentials (CVE-2024-48248)
The hum of routine backup operations offers comfort to IT administrators. But behind this quiet hum, a single overlooked web request can open the doors to a devastating breach. In environments where NAKIVO Backup & Replication is deployed, attackers have discovered a troubling backdoor—one that allows them to tunnel through the application to read arbitrary files stored on the host system. Worse still, some of those files contain cleartext credentials.
This is not a hypothetical flaw. It’s CVE-2024-48248—an absolute path traversal vulnerability in the getImageByPath endpoint, now patched in version 11.0.0.88174. But before we get to remediation, let’s break down what makes this flaw especially dangerous in environments that rely on automated backups across enterprise infrastructure.
Executive Summary
getImageByPath parameter Technical Deep Dive
Vulnerability Mechanism:
CVE-2024-48248 stems from improper input validation in the getImageByPath endpoint exposed via the /c/router path. By injecting absolute paths into this parameter, an attacker can trick the server into retrieving and returning any file accessible to the running process. There are no guardrails to sanitize the input or restrict its scope to safe locations.
The consequences? If the accessed files contain plaintext credentials—as in the case of the PhysicalDiscovery configuration—attackers may elevate privileges or pivot deeper into the network, potentially achieving remote code execution.
Technical Details:
getImageByPath endpoint via /c/router This vulnerability relies on an attacker’s ability to craft HTTP requests over the network, inserting malicious path parameters to browse the underlying file system. With no restrictions in place, the server obediently serves up the contents—including configuration files with hardcoded passwords.
Current Threat Landscape
Recent Research Activity:
As of June 2024, there are no known GitHub discussions or public exploit proofs related to CVE-2024-48248. Likewise, no blog posts or detailed technical breakdowns have emerged from security researchers. However, given the class of vulnerability and its viability in enterprise environments, exploitation is likely to grow.
Security Community Insights:
No community contributions or published incident analysis have been noted yet. This might lull some into a false sense of security, but the high-value reward (credentials in plaintext) embedded in misconfigured backup systems is not something threat actors overlook for long.
Real-World Impact
Business Consequences:
This isn’t just about reading logs or leaking configuration files—this vulnerability makes credential harvesting and system pivoting a real, high-risk concern for any organization running outdated NAKIVO software.
Targeted Applications:
CVE-2024-48248 specifically threatens enterprise environments with these characteristics:
Threat Actors:
Actionable Remediation
Immediate Actions:
Upgrade NAKIVO Backup & Replication to version 11.0.0.88174 or later. This release includes the fix for CVE-2024-48248 and is currently available.
Priority Level:
High. Given the ease of exploitation and the risk of credential disclosure, organizations should treat patching as critical.
Configuration Hardening:
Even with the patch applied, defense-in-depth matters. Implement these hardening steps:
1. Restrict network access to the NAKIVO administrative interface—place it behind VPNs, or isolate it within management VLANs.
2. Enable a Web Application Firewall (WAF) with signatures capable of detecting and blocking path traversal attempts (e.g., sequences like ../).
3. Apply principle of least privilege—ensure that the NAKIVO service account has minimal file system permissions and cannot access other sensitive data stores.
Official References:
Timeline and Evolution
Disclosure Timeline:
Patch Availability:
Recent Activity:
No public exploit activity or code has been shared, but organizations should not underestimate the appeal of this vulnerability to well-resourced attackers.
Strategic Recommendations
1. Prioritize Patch Management: Perform immediate rollout of version 11.0.0.88174 to all NAKIVO management instances.
2. Audit File Permissions: Review the service account’s access rights—ensure it cannot reach user home directories, credential stores, or sensitive configurations.
3. Deploy Segmentation and Access Controls: Keep backup interfaces protected; isolate them from end-user traffic and restrict access to authorized personnel.
4. Monitor for Exploitation Attempts: Deploy intrusion detection systems and examine logs for suspicious HTTP requests to /c/router paths, particularly those containing sequences like ../.
5. Credential Rotation Policy: If you suspect that credential files were exposed due to this flaw prior to patching, rotate all affected service and admin credentials.
Conclusion
CVE-2024-48248 is a textbook example of how seemingly minor input validation oversights can turn into critical enterprise security threats. In a world where backups are often the last line of defense against ransomware and data loss, leaving this kind of flaw unpatched is akin to opening the vault and handing over the keys.
Remediation is straightforward—a vendor patch exists, and configuration improvements can mitigate residual risk. But organizations must act swiftly. The gap between public disclosure and exploitation is small, and the consequences for enterprise backup integrity are massive.
Key Takeaways:
Confidence Assessment: Medium
Analysis confidence: Medium | Research sources: Internal CVE research data and official release notes at https://www.nakivo.com/resources/releases/v11/
