Description Preview
A Buffer Overflow vulnerability (CWE-120) has been discovered in multiple Netgear router models including R6900 v.1.0.2.26, R6700v3 v.1.0.4.128, and R6700 v.1.0.0.26. The vulnerability exists in the fwSchedule.cgi page, specifically in the handling of the getInputData parameter. Remote attackers can exploit this vulnerability to execute arbitrary code on the affected devices or cause a denial of service condition, potentially leading to complete system compromise.
Overview
This vulnerability affects several Netgear router models and versions, specifically the R6900 v.1.0.2.26, R6700v3 v.1.0.4.128, and R6700 v.1.0.0.26. The issue is a classic buffer overflow vulnerability in the fwSchedule.cgi page where improper validation of the getInputData parameter allows attackers to overflow the buffer and potentially execute malicious code with the privileges of the web server process. This could lead to complete compromise of the affected router, allowing attackers to intercept network traffic, modify router configurations, or use the router as a pivot point for further attacks on the internal network.
Remediation
- Update firmware to the latest version provided by Netgear that addresses this vulnerability.
- Check the Netgear security advisory page regularly for updates related to this vulnerability.
- If no patch is available, consider implementing network-level protections:
- Restrict remote administration access to the router
- Use a firewall to limit access to the router's web interface
- Change default credentials and use strong passwords
- Implement network segmentation to minimize potential impact
- Monitor router logs for suspicious activities that might indicate exploitation attempts.
References
- Netgear Security Advisory: https://www.netgear.com/about/security/
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'): https://cwe.mitre.org/data/definitions/120.html
- MITRE CVE-2023-30280: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-30280
Industry ExposureMost to leastThis 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.
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.
- Accommodation & Food ServicesAccommodation & Food Services
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- ConstructionConstruction
- Educational ServicesEducational Services
- Finance and InsuranceFinance and Insurance
- Health Care & Social AssistanceHealth Care & Social Assistance
- InformationInformation
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- ManufacturingManufacturing
- MiningMining
- Other Services (except Public Administration)Other Services (except Public Administration)
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- Public AdministrationPublic Administration
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- Retail TradeRetail Trade
- Transportation & WarehousingTransportation & Warehousing
- UtilitiesUtilities
- Wholesale TradeWholesale Trade
