CVE-2007-2796:Arris Cadant C3 CMTS remote denial of service via malformed IP packet with an invalid IP option.

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This vulnerability allows remote attackers to cause a denial of service (service termination) on Arris Cadant C3 CMTS by sending a malformed IP packet that contains an invalid IP option. The issue can be exploited over the network, potentially terminating the CMTS services without requiring authentication. The CVE references indicate multiple advisories and discussions dating back to mid-2007.

Overview

The CVE describes a remote denial of service against Arris Cadant C3 CMTS triggered by processing a malformed IP packet containing an invalid IP option. An attacker could remotely induce a DoS condition, terminating services on the affected device. This vulnerability was disclosed in 2007, with multiple public advisories and references documenting the issue and related mitigations.

Remediation

  • Check with Arris for any firmware or software updates addressing this vulnerability and apply the recommended patch or firmware upgrade to the Cadant C3 CMTS.
  • If a patch is not available or cannot be applied, implement network-level mitigations:
    • Filter or drop IP packets that contain invalid or suspicious IP options at upstream routers or firewalls.
    • Restrict exposure of the CMTS management interfaces to trusted networks and limit management access to authorized hosts.
    • Enable DoS protections and rate-limiting on devices handling traffic to and from the CMTS.
    • Deploy IDS/IPS signatures or monitoring to detect anomalous packets containing invalid IP options and block as appropriate.
  • Regularly review vendor advisories (and related CVE references) for any updated guidance or fixes and verify systems after remediation.

References

  • OSVDB:37233 — http://osvdb.org/37233
  • ADV-2007-2162 (VUPEN) — http://www.vupen.com/english/advisories/2007/2162
  • cadant-c3-ip-dos(34822) (XForce) — https://exchange.xforce.ibmcloud.com/vulnerabilities/34822
  • SECUNIA Advisory 25611 — http://secunia.com/advisories/25611
  • SecurityFocus BID 24430 — http://www.securityfocus.com/bid/24430
  • BUGTRAQ:20070612 ZDI-07-036 — http://www.securityfocus.com/archive/1/471195/100/0/threaded
  • SECTRACK 1018220 — http://www.securitytracker.com/id?1018220
  • ZDI advisory (ZDI-07-036) — http://www.zerodayinitiative.com/advisories/ZDI-07-036.html

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. Accommodation & Food Services: Low
    Accommodation & Food Services
  2. Administrative, Support, Waste Management & Remediation Services: Low
    Administrative, Support, Waste Management & Remediation Services
  3. Agriculture, Forestry Fishing & Hunting: Low
    Agriculture, Forestry Fishing & Hunting
  4. Arts, Entertainment & Recreation: Low
    Arts, Entertainment & Recreation
  5. Construction: Low
    Construction
  6. Educational Services: Low
    Educational Services
  7. Finance and Insurance: Low
    Finance and Insurance
  8. Health Care & Social Assistance: Low
    Health Care & Social Assistance
  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

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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