Critical XXE Vulnerability Discovered in Lantronix Provisioning Manager 7.10.3

Critical XXE Flaw Exposed in Lantronix Provisioning Manager

Security researchers have uncovered a severe XML External Entity (XXE) injection vulnerability in Lantronix Provisioning Manager version 7.10.3, which could allow attackers to access sensitive data or compromise affected systems. The flaw, tracked under Exploit-DB ID 52417, was disclosed via the Exploit Database on [insert date if available].

Technical Details of the Vulnerability

The XXE vulnerability (CWE-611) stems from improper restriction of XML external entity references in the application’s input processing. Attackers can exploit this flaw by submitting maliciously crafted XML input, potentially leading to:

• Unauthorized file disclosure (e.g., reading sensitive system files)
• Server-side request forgery (SSRF) attacks
• Denial-of-service (DoS) conditions via resource exhaustion
• Remote code execution (RCE) in certain configurations

The vulnerability affects Lantronix Provisioning Manager 7.10.3, a widely used network device management platform for provisioning, monitoring, and maintaining IT infrastructure. No CVE ID has been assigned at the time of disclosure.

Impact and Risk Assessment

XXE vulnerabilities are particularly dangerous due to their potential to bypass authentication mechanisms and exfiltrate sensitive data. In the case of Lantronix Provisioning Manager, successful exploitation could grant attackers access to:

• Configuration files containing credentials or network topology details
• System logs with operational data
• Internal APIs or backend services

Given the platform’s role in managing critical network devices, this flaw poses a high risk to enterprises relying on Lantronix for infrastructure automation.

Mitigation and Recommendations

Lantronix has not yet released an official patch for this vulnerability. Security teams are advised to:

1. Restrict access to the Provisioning Manager interface to trusted networks only.
2. Disable XML external entity processing in the application’s XML parser if feasible.
3. Monitor for suspicious XML input in logs, particularly requests containing DOCTYPE declarations or external entity references.
4. Apply network segmentation to limit lateral movement in case of exploitation.
5. Review Exploit-DB ID 52417 for technical indicators of compromise (IoCs) and proof-of-concept (PoC) details.

Organizations using Lantronix Provisioning Manager should prioritize this vulnerability and implement compensating controls until an official fix is available. Further updates will be provided as the situation develops.