Description Preview
A stored cross-site scripting (XSS) vulnerability was discovered in cPanel versions prior to 62.0.4. The vulnerability exists in the WHM Account Suspension List interface, allowing attackers to inject malicious scripts that would be executed when administrators view the suspension list. This could lead to session hijacking, credential theft, or other malicious actions performed in the context of the administrator's browser session.
Overview
This vulnerability (CVE-2017-18481) affects cPanel installations prior to version 62.0.4. The issue is a stored XSS vulnerability (CWE-79) in the WHM Account Suspension List interface, identified internally as SEC-211. Stored XSS vulnerabilities are particularly dangerous as they don't require direct interaction with the victim - the malicious script is stored on the server and executed whenever a user accesses the affected page. In this case, attackers could potentially inject malicious JavaScript code that would execute in the browser of WHM administrators viewing the suspension list, potentially leading to unauthorized access to the administrator's session or other sensitive actions.
Remediation
To address this vulnerability, system administrators should:
- Update cPanel to version 62.0.4 or later as soon as possible
- Verify that the update has been successfully applied by checking the current version in WHM
- Review account suspension lists for any suspicious entries that might indicate previous exploitation attempts
- Consider implementing Content Security Policy (CSP) headers as an additional layer of protection against XSS attacks
- Monitor system logs for any unusual activities that might indicate exploitation attempts
References
- cPanel Security Technical Report: https://news.cpanel.com/tsr-2017-0001-full-disclosure/
- cPanel 62 Change Log: https://documentation.cpanel.net/display/CL/62+Change+Log
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'): https://cwe.mitre.org/data/definitions/79.html
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
