The async-git package before 1.13.2 for Node.js allows OS Command Injection via shell metacharacters, as demonstrated by git.reset and git.tag. With a CVSS score of 9.8, this vulnerability is classified as critical and poses a significant risk to organizations utilizing this package.
Risk to organizations includes unauthorized command execution, which can lead to data breaches and system compromise. Attackers may leverage this vulnerability to execute arbitrary commands in the context of the application, making it imperative for organizations to address this issue promptly.
Organizations should prioritize patching immediately. The vulnerability was published on January 26, 2021, and is particularly concerning due to its potential for exploitation in network environments with low attack complexity and no required user interaction.
As of now, there are no known exploits or public proof of concepts available for this vulnerability, but the high severity and potential impact necessitate a swift response from security teams.
Defenders should remain vigilant and monitor for any signs of exploitation while preparing to deploy the necessary updates.
Vulnerability Details
The async-git package is an essential tool for executing Git commands asynchronously in Node.js environments. This vulnerability allows for OS command injection due to improper handling of shell metacharacters. The CVSS score of 9.8 indicates a critical severity level, which means that the vulnerability can lead to severe impacts on confidentiality, integrity, and availability.
Affected versions of the async-git package are those prior to 1.13.2. The vulnerability falls under the Common Weakness Enumeration (CWE) classification CWE-78, which pertains to OS command injection vulnerabilities.
The vulnerability was published on January 26, 2021, and has been marked as modified in subsequent updates.
Technical Analysis
The root cause of this vulnerability lies in the way the async-git package processes shell commands. Specifically, failure to properly sanitize input allows attackers to inject arbitrary commands through functions like git.reset and git.tag.
The attack vector is network-based, meaning that remote attackers can exploit this vulnerability without physical access to the system. The attack complexity is low, as there are no special conditions required for the attack to succeed, and privileges required are none, making it accessible to any unauthenticated user.
User interaction is not needed, which further increases the risk of exploitation. The impacts on confidentiality, integrity, and availability are all high, as an attacker could compromise sensitive data, manipulate system integrity, and disrupt service availability.
Risk & Impact Analysis
This vulnerability presents a significant risk to any organization using the async-git package in production. The ability for an attacker to execute arbitrary commands could lead to a range of damaging scenarios, from data theft to complete system takeover.
Organizations should assess their deployment of the async-git package and prioritize remediation efforts based on their risk profile. Given the critical severity of this vulnerability, organizations should address it in their priority patch cycle.
Furthermore, the vulnerability's inclusion in the CVE database indicates its significance in the security landscape, and organizations must take proactive measures to mitigate potential risks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The async-git package versions prior to 1.13.2 are affected by this vulnerability. Organizations using these versions should upgrade to the latest version to mitigate the risk.
Mitigation & Remediation
Organizations should apply the patch to the async-git package to remediate this vulnerability. Ensure that all instances of async-git are updated to version 1.13.2 or later. In case a patch cannot be applied immediately, consider implementing network controls to limit access to vulnerable systems.
For comprehensive security, organizations may also consider engaging in penetration testing to validate their defenses against exploitation attempts.
Detection Guidance
Organizations should monitor their logs for any unusual command executions or attempts to access git functionalities that do not align with standard operational procedures.
Behavioral anomalies, such as unexpected outputs from git commands or unauthorized access attempts, should be investigated immediately to ensure that no exploitation has occurred.
AppSecure Threat Intelligence Insight
The async-git vulnerability illustrates a significant risk in dependency management for Node.js applications. As organizations increasingly leverage third-party libraries, the potential for vulnerabilities within these dependencies can lead to severe security incidents.
Security teams should focus on implementing robust dependency management practices, including regular audits of third-party libraries and timely application of security updates.
For further insights, organizations can refer to our guides on vulnerability management and penetration testing methodology to enhance their security posture against such vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)