Description Preview
Overview
This vulnerability (CVE-2021-20028) is classified as a SQL injection vulnerability in SonicWall's Secure Remote Access (SRA) appliances. The vulnerability stems from improper neutralization of SQL commands in the application, allowing attackers to potentially inject and execute malicious SQL statements. This could lead to unauthorized access to the database, data theft, data manipulation, or even complete system compromise. The vulnerability specifically affects SRA appliances running all 8.x firmware versions and those running firmware version 9.0.0.9-26sv or earlier.
Remediation
Since the affected SonicWall SRA products are end-of-life, there are no firmware updates available to patch this vulnerability. Organizations still using these devices should take the following actions:
- Migrate to supported SonicWall products such as SMA (Secure Mobile Access) appliances.
- If immediate migration is not possible, implement network segmentation to limit exposure of the vulnerable devices.
- Monitor logs for suspicious activities that might indicate exploitation attempts.
- Implement strong access controls to limit who can access the SRA appliance.
- Consider placing the SRA appliance behind a web application firewall (WAF) that can detect and block SQL injection attempts.
References
- SonicWall PSIRT Advisory: https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0017
- CWE-89: SQL Injection: https://cwe.mitre.org/data/definitions/89.html
Early Warning
Armis Early Warning customers received an advanced alert on this vulnerability.
- Armis Alert Date
- Jan 26, 2022
- CISA KEV Date
- Mar 28, 2022
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.
- 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
