Horizon Alert
Summary of the vulnerability and why it matters
An improper input validation vulnerability was identified in the database layer of OTRS or ((OTRS)) Community Edition, potentially allowing unauthenticated attackers to bypass authentication. This issue is contingent on a specific MySQL/MariaDB server configuration.
- Vulnerability allows bypassing user logins.
- Critical risk to authentication if server setting is misconfigured.
- Confirm if your specific OTRS configuration is exposed.
Attack Path
How an attacker could exploit the issue
An attacker can initiate an SQL injection attack against the OTRS database layer without needing any credentials. This attack is possible if the MySQL/MariaDB server is configured with the `NO_BACKSLASH_ESCAPES` SQL mode. Successful exploitation could lead to an authentication bypass, granting the attacker unauthorized access to the system.
- No authentication required to initiate.
- SQL injection in database layer.
- Bypasses authentication, grants access.
Live Threat
Current exploitation, exposure, and threat context
When the MySQL/MariaDB server is configured with the NO_BACKSLASH_ESCAPES SQL mode, an unauthenticated SQL injection in OTRS or ((OTRS)) Community Edition's database layer module could allow an attacker to bypass authentication. This could expose sensitive system or user data accessible through the affected module.
- Sensitive system or user data.
- Unauthenticated SQL injection is possible.
- Authentication bypass could occur.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Real-world response for this critical vulnerability hinges on identifying the specific teams responsible for the OTRS or ((OTRS)) Community Edition instances. Typically, the application owners or a dedicated platform team would manage the OTRS application itself. The infrastructure or database administrators would be responsible for the MySQL/MariaDB server configuration, specifically the `NO_BACKSLASH_ESCAPES` SQL mode. The initial action should be to conduct an inventory of all OTRS deployments, confirm network exposure and business criticality, then engage the accountable owners to assess the risk and plan remediation within a suitable maintenance window.
- Application or Platform Owners.
- Verify MySQL/MariaDB SQL mode.
- Plan risk-based remediation.
