CVE-2024-9194: Octopus Server SQL Injection Vulnerability

CVE-2024-9194 Overview

CVE-2024-9194 is a SQL injection vulnerability affecting Octopus Server deployments on both Windows and Linux platforms. The flaw stems from improper neutralization of special elements used in an SQL command [CWE-89]. An authenticated attacker with low privileges can send crafted input over the network to manipulate backend SQL queries. Successful exploitation can compromise the confidentiality, integrity, and availability of data stored within the Octopus Server database. The issue affects Octopus Server versions 2024.1.0 before 2024.1.13038, 2024.2.0 before 2024.2.9482, and 2024.3.0 before 2024.3.12766.

Critical Impact

Authenticated attackers can inject arbitrary SQL commands into Octopus Server, exposing deployment secrets, pipeline configurations, and connected infrastructure credentials.

Affected Products

• Octopus Server 2024.1.0 before 2024.1.13038
• Octopus Server 2024.2.0 before 2024.2.9482
• Octopus Server 2024.3.0 before 2024.3.12766

Discovery Timeline

• 2024-09-30 - CVE-2024-9194 published to NVD
• 2025-07-02 - Last updated in NVD database

Technical Details for CVE-2024-9194

Vulnerability Analysis

The vulnerability resides in an Octopus Server code path that constructs SQL statements using unsanitized input. The application fails to apply parameterized queries or proper escaping for at least one user-controllable field. An attacker authenticated with low privileges can submit specially crafted values that break out of the intended query context.

Octopus Server is a deployment automation platform that orchestrates releases across enterprise infrastructure. Compromise of its database can expose deployment targets, API keys, service account credentials, environment variables, and signing material. This makes the server a high-value pivot point inside CI/CD pipelines.

The attack requires no user interaction and can be performed remotely over the network. With an EPSS probability of 0.522%, the vulnerability is more likely to attract opportunistic scanning than many lower-scored issues.

Root Cause

The root cause is improper neutralization of special elements in SQL commands [CWE-89]. Octopus Server concatenates attacker-supplied input directly into a SQL statement instead of binding values through prepared statements. Special characters such as single quotes and SQL meta-characters are not escaped before query execution.

Attack Vector

An attacker authenticated to Octopus Server submits crafted parameters to a vulnerable endpoint. The malicious payload alters query logic, allowing data extraction through boolean, time-based, or UNION techniques. Refer to the Octopus Security Advisory SA2024-09 for vendor-confirmed details.

// No verified public exploit code is available.
// See vendor advisory SA2024-09 for technical specifics.

Detection Methods for CVE-2024-9194

Indicators of Compromise

• Unexpected SQL syntax characters (single quotes, semicolons, UNION, SELECT, --) in Octopus Server HTTP request logs.
• Anomalous response time variance on authenticated Octopus API endpoints, indicative of time-based SQL injection.
• Database errors or stack traces in Octopus Server logs referencing malformed SQL statements.
• Sudden bulk reads from sensitive tables containing deployment secrets, accounts, or variable sets.

Detection Strategies

• Inspect web server and application logs for SQL meta-characters in query strings and POST bodies sent by authenticated users.
• Correlate authentication events with subsequent abnormal query patterns from the same Octopus user identity.
• Deploy database activity monitoring on the Octopus backend to flag queries that deviate from the application's known query fingerprints.

Monitoring Recommendations

• Forward Octopus Server audit logs and IIS or Kestrel access logs to a centralized SIEM for correlation.
• Alert on authenticated low-privilege accounts performing administrative-equivalent data reads.
• Monitor egress traffic from the Octopus Server host for unusual data exfiltration volumes.

How to Mitigate CVE-2024-9194

Immediate Actions Required

• Upgrade Octopus Server to 2024.1.13038, 2024.2.9482, 2024.3.12766, or later, depending on the deployed branch.
• Rotate API keys, deployment credentials, and service account passwords stored within Octopus Server.
• Audit Octopus user accounts and remove unused or over-privileged identities.
• Review recent deployment and variable activity for unauthorized changes.

Patch Information

Octopus has released fixed builds in versions 2024.1.13038, 2024.2.9482, and 2024.3.12766. Patch details are documented in the Octopus Security Advisory SA2024-09. Customers using Octopus Cloud receive updates automatically; self-hosted deployments must apply the upgrade manually.

Workarounds

• Restrict network access to the Octopus Server web interface to trusted management networks only.
• Enforce multi-factor authentication on all Octopus user accounts to limit credential-based access.
• Apply web application firewall rules to block SQL injection patterns targeting Octopus endpoints until patches are deployed.

# Example: restrict Octopus Server access via host firewall (Linux)
sudo ufw default deny incoming
sudo ufw allow from 10.0.0.0/24 to any port 443 proto tcp
sudo ufw enable