Description Preview
A Cross-Site Scripting (XSS) vulnerability exists in OTRS Community Edition and OTRS 7.0.x. An attacker can craft a specific request for the appointment edit screen that could lead to execution of malicious JavaScript code in a victim's browser. This vulnerability could allow attackers to steal session cookies, perform actions on behalf of the victim, or redirect users to malicious websites.
Overview
This vulnerability (CVE-2021-36094) is a Cross-Site Scripting (XSS) vulnerability that affects the appointment edit screen in OTRS systems. The issue allows attackers to inject malicious scripts that execute when a user accesses the compromised appointment edit screen. The vulnerability impacts OTRS Community Edition 6.0.1 and later versions, as well as OTRS 7.0.x version 7.0.28 and prior versions. XSS attacks can lead to theft of sensitive information, session hijacking, credential theft, and other malicious activities that can compromise the security of the OTRS system and its users.
Remediation
To remediate this vulnerability, system administrators should:
- Update to the latest patched version of OTRS as recommended in the security advisory
- For OTRS Community Edition 6.0.x: Upgrade to a patched version if available
- For OTRS 7.0.x: Upgrade to version 7.0.29 or later
- If immediate patching is not possible, consider implementing web application firewall rules to filter potentially malicious inputs to the appointment edit screen
- Monitor system logs for suspicious activity related to the appointment edit functionality
- Implement Content Security Policy (CSP) headers to help mitigate the impact of XSS attacks
References
- OTRS Security Advisory 2021-17: https://otrs.com/release-notes/otrs-security-advisory-2021-17/
- CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'): https://cwe.mitre.org/data/definitions/79.html
- OWASP XSS Prevention Cheat Sheet: https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.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
