CVE-2021-37162:Buffer overflow vulnerability in Swisslog Healthcare Nexus Panel HMI3 Control Panel allows remote code execution through malformed UDP messages.

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CVE-2021-37162 affects the HMI3 Control Panel in Swisslog Healthcare Nexus Panel running software versions prior to 7.2.5.7. The vulnerability involves a buffer overflow issue where malformed UDP messages can trigger a buffer underflow condition, resulting in an out-of-bounds copy operation. This vulnerability could potentially allow an attacker to execute arbitrary code remotely on the affected system, compromising the security and integrity of the healthcare pneumatic tube system.

Overview

This vulnerability exists in the Swisslog Healthcare Nexus Panel, specifically in the HMI3 Control Panel component. The issue is classified as CWE-120 (Buffer Copy without Checking Size of Input). When processing certain UDP messages, the system fails to properly validate input size, leading to a buffer underflow condition. This vulnerability is part of a larger set of security issues discovered in the Swisslog pneumatic tube systems, collectively referred to as "PwnedPiper" by security researchers at Armis. These systems are widely used in hospitals for transporting medications, lab samples, and other critical materials. A successful exploitation could potentially allow attackers to gain unauthorized access to the system, disrupt hospital operations, or potentially compromise patient care by interfering with the delivery of critical medical supplies.

Remediation

  1. Update to Nexus Software version 7.2.5.7 or later, which contains fixes for this vulnerability.
  2. If immediate patching is not possible, implement network segmentation to isolate the pneumatic tube system from other hospital networks.
  3. Monitor network traffic for suspicious UDP packets directed at the Nexus Panel system.
  4. Implement access controls to restrict who can communicate with the system.
  5. Contact Swisslog Healthcare for specific guidance related to your installation.
  6. Follow the detailed mitigation steps provided in the vendor's security bulletin.

References

  1. Armis PwnedPiper Research: https://www.armis.com/PwnedPiper
  2. Swisslog Healthcare Product Information: https://www.swisslog-healthcare.com
  3. Vendor Security Advisory: https://www.swisslog-healthcare.com/-/media/swisslog-healthcare/documents/customer-service/armis-documents/cve-2021-37162-bulletin---overflow-in-sccprocessmsg.pdf
  4. Swisslog Healthcare CVE Disclosures Page: https://www.swisslog-healthcare.com/en-us/customer-care/security-information/cve-disclosures

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Health Care & Social Assistance: Low
    Health Care & Social Assistance
  2. Educational Services: Low
    Educational Services
  3. Accommodation & Food Services: Low
    Accommodation & Food Services
  4. Administrative, Support, Waste Management & Remediation Services: Low
    Administrative, Support, Waste Management & Remediation Services
  5. Agriculture, Forestry Fishing & Hunting: Low
    Agriculture, Forestry Fishing & Hunting
  6. Arts, Entertainment & Recreation: Low
    Arts, Entertainment & Recreation
  7. Construction: Low
    Construction
  8. Finance and Insurance: Low
    Finance and Insurance
  9. Information: Low
    Information
  10. Management of Companies & Enterprises: Low
    Management of Companies & Enterprises
  11. Manufacturing: Low
    Manufacturing
  12. Mining: Low
    Mining
  13. Other Services (except Public Administration): Low
    Other Services (except Public Administration)
  14. Professional, Scientific, & Technical Services: Low
    Professional, Scientific, & Technical Services
  15. Public Administration: Low
    Public Administration
  16. Real Estate Rental & Leasing: Low
    Real Estate Rental & Leasing
  17. Retail Trade: Low
    Retail Trade
  18. Transportation & Warehousing: Low
    Transportation & Warehousing
  19. Utilities: Low
    Utilities
  20. Wholesale Trade: Low
    Wholesale Trade

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