Description Preview
SLICAN WebCTI version 1.01 from 2015 contains a Cross-Site Scripting (XSS) vulnerability that allows attackers to inject and execute malicious JavaScript code in the context of other users' browsers. This vulnerability can be exploited to steal user sessions, leading to session hijacking and potential theft of user credentials. The vulnerability occurs because the application fails to properly sanitize user-supplied input before reflecting it in web pages, allowing attackers to embed script code that executes when viewed by other users.
Overview
This vulnerability (CVE-2021-45813) is classified as CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). The affected software, SLICAN WebCTI 1.01 2015, is susceptible to XSS attacks where malicious actors can inject client-side scripts into web pages viewed by other users. When successful, the attacker can bypass same-origin policy restrictions, access sensitive information from the victim's session, manipulate the website content, or redirect users to malicious sites. The primary risk is session hijacking, where attackers can steal authentication cookies and impersonate legitimate users, potentially gaining unauthorized access to the system.
Remediation
To address this vulnerability, system administrators should:
- Update SLICAN WebCTI to the latest version if a patch is available.
- Implement proper input validation and output encoding to prevent script injection.
- Consider implementing Content Security Policy (CSP) headers to restrict script execution.
- Use HTTP-only and secure flags for session cookies to prevent JavaScript access.
- Implement proper character escaping for all user-controlled inputs before rendering them in HTML.
- Consider using a web application firewall (WAF) that can detect and block XSS attempts.
- Regularly audit web applications for similar security vulnerabilities.
References
- MITRE CVE Entry: CVE-2021-45813
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Exploit and Advisory Information: https://drive.google.com/file/d/1oKuzCZob9-LOAp-pdGN0MYYBx8y9FnHK/view?usp=sharing
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
