1. What is this vulnerability and why does it matter?

This vulnerability is an OS Command Injection in the GitHub repository gogs/gogs. Specifically, it affects versions prior to 0.12.11. OS Command Injection vulnerabilities are critical because they allow an attacker to execute arbitrary operating system commands on the server hosting the application. This can lead to complete system compromise, including data theft, data modification, and further network penetration. The impact of such an attack is severe, as it grants the attacker the same privileges as the vulnerable application itself.

2. What are the CVSS score, severity level, and disclosure details?

The CVSS score for this vulnerability is 9.8. This score indicates a Critical severity level. The vulnerability was Published on 2023-02-25 00:00:00 and was last Modified on 2025-03-11 15:39:29.

3. Which products, vendors, systems, and versions are affected?

The affected product is Gogs (Go Git Service), specifically within its GitHub repository gogs/gogs. The affected versions are all versions prior to 0.12.11.

4. What is the technical root cause and attack vector?

The technical root cause is CWE-78: OS Command Injection. This indicates that the application constructs all or part of an operating system command using externally-controlled input without neutralizing or incorrectly neutralizing special elements that could modify the command's meaning. The attack vector would typically involve an attacker providing specially crafted input to the Gogs application, likely through a web form, API endpoint, or configuration setting, which is then incorporated into a system command and executed by the underlying operating system.

5. How can this vulnerability be exploited?

This vulnerability can be exploited by an attacker injecting malicious operating system commands into input fields or parameters that are processed by the Gogs application. When the application constructs and executes a system command using this unsanitized input, the injected commands will be executed with the privileges of the Gogs application. This typically allows for arbitrary code execution, enabling an attacker to:

• Execute commands on the server (e.g., download malware, create new users).
• Read, write, or delete arbitrary files.
• Establish a reverse shell for persistent access.
• Pivot to other systems within the network.

6. What mitigation steps and patches are available?

The primary mitigation step is to upgrade Gogs to version 0.12.11 or later. This patched version contains the necessary fixes to address the OS Command Injection vulnerability. General mitigation strategies for OS Command Injection vulnerabilities include:

• Input Validation: Strictly validate and sanitize all user-supplied input before it is used in system commands.
• Whitelist Filtering: Only allow known-safe characters and patterns in input that will be passed to system calls.
• Use Safe APIs: Prefer using API functions that do not directly invoke a shell, or that handle arguments as a list of strings rather than a single command string.
• Principle of Least Privilege: Run the Gogs application with the lowest possible privileges required to function.

7. How can vulnerable systems be detected?

Vulnerable systems can be detected by identifying the installed version of Gogs. Any instance of Gogs with a version number less than 0.12.11 is considered vulnerable to CVE-2022-2024. System administrators should check the version reported by their Gogs instance, usually found in the application's admin panel, configuration files, or by checking the binary directly.

8. What are the indicators of compromise (IOCs)?

While specific IOCs for CVE-2022-2024 are not provided in the given data, general indicators of compromise for OS Command Injection vulnerabilities can include:

• Unusual outbound network connections from the server hosting Gogs.
• Creation of unexpected files or directories on the server's filesystem.
• Unexplained changes to system configuration files or user accounts.
• Unexpected process execution or high CPU/memory utilization by the Gogs process.
• Log entries showing unusual or suspicious input strings being processed by Gogs.

10. What public intelligence references and advisories exist?

The primary public intelligence reference for this vulnerability is CVE-2022-2024. Details can also be found in the GitHub repository gogs/gogs, specifically related to the fix implemented in version 0.12.11. This CVE entry serves as the official advisory.

11. What is the risk assessment and urgency level?

The risk assessment for CVE-2022-2024 is High, given its CVSS score of 9.8, which places it in the Critical severity category. An OS Command Injection vulnerability allows for arbitrary code execution, leading to potential complete compromise of the affected system and sensitive data. The urgency level is Critical; immediate action is required to patch affected systems. Organizations using Gogs versions prior to 0.12.11 should prioritize upgrading to the latest secure version to prevent exploitation.