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 (37837)
Vulnerability in the Oracle Marketing product of Oracle E-Business Suite (component: Marketing Administration). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Rated medium severity (CVSS 4.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Oracle Email Center product of Oracle E-Business Suite (component: Customer Search). 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 Customer Interaction History product of Oracle E-Business Suite (component: Outcome-Result). 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: Profile). 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: 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 One-to-One Fulfillment product of Oracle E-Business Suite (component: Print Server). 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 WebLogic Server product of Oracle Fusion Middleware (component: Console). Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Diagnostic Framework). 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: Web Container). 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: Installation). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle iSupplier Portal product of Oracle E-Business Suite (component: Accounts). Rated medium severity (CVSS 5.3), 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: User Interface). Rated high severity (CVSS 8.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle One-to-One Fulfillment product of Oracle E-Business Suite (component: Print Server). 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 high severity (CVSS 8.2), 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 high severity (CVSS 8.2), 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 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: 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: 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 iSupport product of Oracle E-Business Suite (component: Admin). 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: 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: Calendar). 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 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 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 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 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 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 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 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 iSupport product of Oracle E-Business Suite (component: Profile). 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 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 Knowledge Management product of Oracle E-Business Suite (component: Setup, Admin). 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 Service Intelligence product of Oracle E-Business Suite (component: Internal Operations- Search). 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 Gateway for Mobile Devices product of Oracle E-Business Suite (component: Setup of Mobile Applications). Rated high severity (CVSS 8.6), 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 high severity (CVSS 8.2), 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 high severity (CVSS 8.2), 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 high severity (CVSS 8.2), 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 high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Quoting product of Oracle E-Business Suite (component: Courseware). 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 One-to-One Fulfillment product of Oracle E-Business Suite (component: Print Server). 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 Marketing product of Oracle E-Business Suite (component: Marketing Administration). 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 WebLogic Server product of Oracle Fusion Middleware (component: Management Services). Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: WLS Web Services). 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 One-to-One Fulfillment product of Oracle E-Business Suite (component: Print Server). 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 One-to-One Fulfillment product of Oracle E-Business Suite (component: Print Server). 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 One-to-One Fulfillment product of Oracle E-Business Suite (component: Print Server). 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 One-to-One Fulfillment product of Oracle E-Business Suite (component: Print Server). 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 Calendar product of Oracle E-Business Suite (component: Notes). 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: Claims). 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: Budget). 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 Calendar product of Oracle E-Business Suite (component: Notes). 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 Universal Work Queue product of Oracle E-Business Suite (component: Work Provider Administration). 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 Universal Work Queue product of Oracle E-Business Suite (component: Work Provider Administration). 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 Scripting product of Oracle E-Business Suite (component: Miscellaneous). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). 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 iSupport product of Oracle E-Business Suite (component: Profile). 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 Email Center product of Oracle E-Business Suite (component: KB Search). 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 WebLogic Server product of Oracle Fusion Middleware (component: Console). 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 iStore product of Oracle E-Business Suite (component: Shopping Cart). 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 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 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 Marketing Encyclopedia System product of Oracle E-Business Suite (component: Administration). Rated high severity (CVSS 8.2), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Lightweight HTTP Server). Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Oracle GraalVM Enterprise Edition product of Oracle GraalVM (component: GraalVM Compiler). Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Process Scheduler). 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 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 Email Center product of Oracle E-Business Suite (component: Email Address list and 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 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. No vendor patch available.
Vulnerability in the Oracle iSupport product of Oracle E-Business Suite (component: User Interface). 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 Outside In Technology product of Oracle Fusion Middleware (component: Outside In Filters). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Hyperion Financial Management product of Oracle Hyperion (component: Security). Rated medium severity (CVSS 4.2), this vulnerability is remotely exploitable. No vendor patch available.
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. No vendor patch available.
Vulnerability in the Oracle Human Resources product of Oracle E-Business Suite (component: Absence Recording, Maintenance). Rated medium severity (CVSS 4.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Solaris product of Oracle Systems (component: Whodo). Rated low severity (CVSS 2.5). Public exploit code available and no vendor patch available.
Vulnerability in the Hyperion Financial Reporting product of Oracle Hyperion (component: Web Based Report Designer). Rated low severity (CVSS 2.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Java SE product of Oracle Java SE (component: JSSE). Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the Java SE product of Oracle Java SE (component: Advanced Management Console). Rated low severity (CVSS 3.7), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.
Vulnerability in the Oracle Workflow product of Oracle E-Business Suite (component: Workflow Notification Mailer). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Portal). 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 General Ledger product of Oracle E-Business Suite (component: Account Hierarchy Manager). 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 Solaris product of Oracle Systems (component: SMF command svcbundle). Rated low severity (CVSS 2.5). No vendor patch available.
Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: SSO Engine). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Hospitality Reporting and Analytics component of Oracle Food and Beverage Applications. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Vulnerability in the Oracle Transportation Management product of Oracle Supply Chain (component: Security). Rated medium severity (CVSS 5.4), 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 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 Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Rated medium severity (CVSS 4.6), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Quick Facts
- Typical Severity
- CRITICAL
- Category
- auth
- Total CVEs
- 37837