Authentication Bypass
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
How It Works
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications. Instead of cracking passwords through brute force, attackers manipulate the authentication process itself to gain unauthorized entry. This typically occurs through one of several pathways: exploiting hardcoded credentials embedded in source code or configuration files, manipulating parameters in authentication requests to skip verification steps, or leveraging broken session management that fails to properly validate user identity.
The attack flow often begins with reconnaissance to identify authentication endpoints and their underlying logic. Attackers may probe for default administrative credentials that were never changed, test whether certain URL paths bypass login requirements entirely, or intercept and modify authentication tokens to escalate privileges. In multi-step authentication processes, flaws in state management can allow attackers to complete only partial verification steps while still gaining full access.
More sophisticated variants exploit single sign-on (SSO) or OAuth implementations where misconfigurations in trust relationships allow attackers to forge authentication assertions. Parameter tampering—such as changing a "role=user" field to "role=admin" in a request—can trick poorly designed systems into granting elevated access without proper verification.
Impact
- Complete account takeover — attackers gain full control of user accounts, including administrative accounts, without knowing legitimate credentials
- Unauthorized data access — ability to view, modify, or exfiltrate sensitive information including customer data, financial records, and intellectual property
- System-wide compromise — admin-level access enables installation of backdoors, modification of security controls, and complete infrastructure takeover
- Lateral movement — bypassed authentication provides a foothold for moving deeper into networks and accessing additional systems
- Compliance violations — unauthorized access triggers breach notification requirements and regulatory penalties
Real-World Examples
CrushFTP suffered a critical authentication bypass allowing attackers to access file-sharing functionality without any credentials. The vulnerability enabled direct server-side template injection, leading to remote code execution on affected systems. Attackers actively exploited this in the wild to establish persistent access to enterprise file servers.
Palo Alto's Expedition migration tool contained a flaw permitting attackers to reset administrative credentials without authentication. This allowed complete takeover of the migration environment, potentially exposing network configurations and security policies being transferred between systems.
SolarWinds Web Help Desk (CVE-2024-28987) shipped with hardcoded internal credentials that could not be changed through normal administrative functions. Attackers discovering these credentials gained full administrative access to helpdesk systems containing sensitive organizational information and user data.
Mitigation
- Implement multi-factor authentication (MFA) — requires attackers to compromise additional verification factors beyond bypassed primary authentication
- Eliminate hardcoded credentials — use secure credential management systems and rotate all default credentials during deployment
- Enforce authentication on all endpoints — verify every request requires valid authentication; no "hidden" administrative paths should exist
- Implement proper session management — use cryptographically secure session tokens, validate on server-side, enforce timeout policies
- Apply principle of least privilege — limit damage by ensuring even authenticated users only access necessary resources
- Regular security testing — conduct penetration testing specifically targeting authentication logic and flows
Recent CVEs (33030)
Vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware (component: Layout Templates). Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Rated medium severity (CVSS 5.3). No vendor patch available.
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Rated medium severity (CVSS 5.3). No vendor patch available.
Vulnerability in the Oracle Insurance Accounting Analyzer product of Oracle Financial Services Applications (component: User Interface). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Financial Services Loan Loss Forecasting and Provisioning product of Oracle Financial Services Applications (component: User Interface). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Financial Services Liquidity Risk Management product of Oracle Financial Services Applications (component: User Interface). Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component: Analytics Actions). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Common Applications product of Oracle E-Business Suite (component: CRM User Management Framework). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle iSupport product of Oracle E-Business Suite (component: Others). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Financial Services Analytical Applications Infrastructure product of Oracle Financial Services Applications (component: Infrastructure). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Financial Services Analytical Applications Infrastructure product of Oracle Financial Services Applications (component: Infrastructure). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Depot Repair product of Oracle E-Business Suite (component: Estimate and Actual Charges). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle E-Business Intelligence product of Oracle E-Business Suite (component: DBI Setups). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Rated medium severity (CVSS 5.3). No vendor patch available.
Vulnerability in the Oracle Advanced Outbound Telephony product of Oracle E-Business Suite (component: User Interface). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Advanced Outbound Telephony product of Oracle E-Business Suite (component: Settings). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Configurator product of Oracle Supply Chain (component: UI Servlet). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle E-Business Intelligence product of Oracle E-Business Suite (component: DBI Setups). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle CRM Technical Foundation product of Oracle E-Business Suite (component: Preferences). Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Email Center product of Oracle E-Business Suite (component: Message Display). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Trade Management product of Oracle E-Business Suite (component: Invoice). Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle CRM Technical Foundation product of Oracle E-Business Suite (component: Preferences). Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle CRM Technical Foundation product of Oracle E-Business Suite (component: Preferences). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle CRM Technical Foundation product of Oracle E-Business Suite (component: Preferences). Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Marketing product of Oracle E-Business Suite (component: Marketing Administration). Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle CRM Technical Foundation product of Oracle E-Business Suite (component: Preferences). Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Security Service product of Oracle Fusion Middleware (component: SSL API). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Primavera P6 Enterprise Project Portfolio Management product of Oracle Construction and Engineering (component: Web Access). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Rated medium severity (CVSS 5.3). No vendor patch available.
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Rated medium severity (CVSS 5.3). No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Roles). Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Sample apps). Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Sample apps). Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Sample apps). Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Sample apps). Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Sample apps). Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Application Object Library product of Oracle E-Business Suite (component: Logging). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Query). Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: JAXP). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Primavera Unifier product of Oracle Construction and Engineering (component: Mobile App). Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.
Vulnerability in the Primavera Unifier product of Oracle Construction and Engineering (component: Platform, Mobile App). Rated medium severity (CVSS 5.7), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle Hospitality Reporting and Analytics product of Oracle Food and Beverage Applications (component: Reporting). Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the PeopleSoft Enterprise HRMS product of Oracle PeopleSoft (component: Time and Labor). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle Applications Framework product of Oracle E-Business Suite (component: Attachments / File Upload). Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component: Analytics Web Answers). Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle Fusion Middleware MapViewer product of Oracle Fusion Middleware (component: Tile Server). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle Financial Services Analytical Applications Infrastructure product of Oracle Financial Services Applications (component: Infrastructure). Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle Financial Services Analytical Applications Infrastructure product of Oracle Financial Services Applications (component: Infrastructure). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle Financial Services Analytical Applications Infrastructure product of Oracle Financial Services Applications (component: Infrastructure). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle Financial Services Analytical Applications Infrastructure product of Oracle Financial Services Applications (component: Infrastructure). Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Portal). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle CRM Gateway for Mobile Devices product of Oracle E-Business Suite (component: Setup of Mobile Applications). Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle CRM Gateway for Mobile Devices product of Oracle E-Business Suite (component: Setup of Mobile Applications). Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle iStore product of Oracle E-Business Suite (component: Address Book). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Vulnerability in the Oracle iLearning product of Oracle iLearning (component: Assessment Manager). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: 2D). Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle Applications Framework product of Oracle E-Business Suite (component: Page Request). Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Container). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the PeopleSoft Enterprise FIN Expenses product of Oracle PeopleSoft (component: Expenses). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware (component: Mobile Service). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware (component: BI Publisher Security). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Vulnerability in the Oracle iStore product of Oracle E-Business Suite (component: User Registration). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: 2D). Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required.
Vulnerability in the Oracle Communications Session Border Controller product of Oracle Communications Applications (component: System Admin). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: JSSE). Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required.
Vulnerability in the Oracle Communications Interactive Session Recorder product of Oracle Communications Applications (component: FACE). Rated medium severity (CVSS 4.7).
Vulnerability in the Java SE product of Oracle Java SE (component: Hotspot). Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required.
Vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware (component: Mobile Service). Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware (component: Mobile Service). Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle FLEXCUBE Investor Servicing product of Oracle Financial Services Applications (component: Infrastructure). Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Primavera Portfolio Management product of Oracle Construction and Engineering (component: Web Access). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Environment Mgmt Console). Rated low severity (CVSS 2.7), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle Hyperion BI+ product of Oracle Hyperion (component: UI and Visualization). Rated medium severity (CVSS 4.2), this vulnerability is remotely exploitable.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Information Schema). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Portal). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Container). Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, no authentication required.
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Libraries). Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required.
Vulnerability in the Oracle Marketing product of Oracle E-Business Suite (component: Marketing Administration). Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the Oracle Application Object Library product of Oracle E-Business Suite (component: Diagnostics). Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Pluggable Auth). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Security Framework). Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Oracle AutoVue product of Oracle Supply Chain (component: Security). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.
Vulnerability in the Primavera Portfolio Management product of Oracle Construction and Engineering (component: Web Server). Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Fusion Middleware (component: Analytics Web General). Rated low severity (CVSS 3.4), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Hyperion Financial Close Management product of Oracle Hyperion (component: Close Manager). Rated medium severity (CVSS 4.2), this vulnerability is remotely exploitable. No vendor patch available.
Quick Facts
- Typical Severity
- CRITICAL
- Category
- auth
- Total CVEs
- 33030