blamer
Corregido en
1.0.2
1.0.1
CVE-2020-8137 describes a code injection vulnerability affecting the blamer Node.js package versions 1.0.0 and earlier. This flaw allows attackers to execute arbitrary code remotely by manipulating input data. The vulnerability was published on May 6, 2021, and a fix is available in version 1.0.1.
The impact of CVE-2020-8137 is severe, enabling remote code execution (RCE). An attacker who can control the input to the blamer package can inject malicious code that will be executed with the privileges of the Node.js process. This could lead to complete system compromise, including data theft, modification, or destruction. The attacker could potentially gain persistent access to the system, install malware, or use the compromised server as a launchpad for further attacks. The ease of exploitation, combined with the potential for widespread deployment of Node.js applications, makes this a high-priority vulnerability.
CVE-2020-8137 is not currently listed on the CISA KEV catalog. Public proof-of-concept (PoC) code is available, indicating a moderate probability of exploitation. The vulnerability's ease of exploitation and the widespread use of Node.js make it a potential target for automated scanning and exploitation attempts. The vulnerability was publicly disclosed on May 6, 2021.
Node.js applications that utilize the blamer package, particularly those where user-supplied input is processed without proper sanitization, are at significant risk. Developers who have not regularly updated their dependencies are also at increased risk. Shared hosting environments that bundle Node.js applications may also be affected.
• nodejs / server:
npm list blamerIf the output shows a version less than 1.0.1, the system is vulnerable. • nodejs / server:
npm audit blamerThis command will identify vulnerable packages in your project.
• generic web: Examine application logs for unusual activity or error messages related to the blamer package. Look for patterns indicative of code injection attempts.
discovery
disclosure
patch
Estado del Exploit
EPSS
4.71% (89% percentil)
Vector CVSS
The primary mitigation for CVE-2020-8137 is to immediately upgrade the blamer package to version 1.0.1 or later. If upgrading is not immediately feasible due to compatibility issues or breaking changes, consider implementing input validation and sanitization to prevent malicious code from being injected. While not a complete solution, this can reduce the attack surface. Reviewing and restricting access to the Node.js application and its dependencies can also help limit the potential impact. After upgrading, confirm the fix by attempting to trigger the vulnerable code path with controlled input and verifying that the code is properly sanitized.
Actualice la biblioteca blamer a la versión 1.0.1 o superior. Esta versión corrige la vulnerabilidad de inyección de código que permite la ejecución remota de código cuando la entrada puede ser controlada por un atacante.
Análisis de vulnerabilidades y alertas críticas directamente en tu correo.
CVE-2020-8137 is a critical code injection vulnerability in the blamer Node.js package, allowing attackers to execute arbitrary code remotely by manipulating input data.
You are affected if you are using blamer versions 1.0.0 or earlier in your Node.js application and user input is not properly sanitized.
Upgrade the blamer package to version 1.0.1 or later. Implement input validation and sanitization as a temporary workaround if upgrading is not immediately possible.
While there's no confirmed widespread exploitation, public PoCs exist, indicating a potential risk of exploitation.
Refer to the npm advisory for CVE-2020-8137: https://www.npmjs.com/advisories/1274
Sube tu archivo de dependencias y detecta esta y otras CVEs al instante.