CVE-2019-10783: OS Command Injection in lsof
Summary
CVE-2019-10783: OS Command Injection in lsof. Affects lsof versions < 0.0.4. No fix is published. How to fix ↓
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Background
The lsof npm module is a package that provides a command-line tool and library for listing open files in Unix-like systems. It is commonly used to gather information about open files and the processes that opened them. The vulnerability in lsof allows for OS Command Injection, where user input is not properly sanitized and can be executed as a command on the underlying operating system. This can lead to unauthorized execution of arbitrary commands with the privileges of the user running the lsof module.
Vulnerability Detail
The vulnerability arises from the use of the exec function to parse user input in all exported methods of the lsof module. This allows an attacker to inject malicious commands by manipulating the user input. The impact of this vulnerability can be severe, as it enables unauthorized execution of arbitrary commands on the host system. An attacker could potentially gain full control over the system, leading to data breaches, privilege escalation, or disruption of services.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, users can implement input validation and sanitization to prevent command injection. It is crucial to carefully validate and sanitize any user input that is passed to the lsof module. This can be done by using a combination of input validation techniques, such as whitelisting allowed characters and escaping or removing any potentially dangerous characters or sequences.
Conclusion
The lsof npm module is vulnerable to OS Command Injection, allowing for unauthorized execution of arbitrary commands. It is crucial to update to a patched version of the lsof module to mitigate this vulnerability. Additionally, implementing input validation and sanitization can serve as a temporary workaround. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The lsof npm module is used to list open files and the processes that opened them in Unix-like systems. It provides a command-line tool and library for this purpose.
OS Command Injection is a vulnerability that occurs when user input is not properly validated or sanitized and is executed as a command on the underlying operating system. This can lead to unauthorized execution of arbitrary commands with the privileges of the user running the vulnerable software.
The potential consequences of this vulnerability include unauthorized execution of arbitrary commands, data breaches, privilege escalation, and disruption of services. An attacker could gain full control over the system and perform malicious actions.
To fix this vulnerability, it is recommended to update the lsof module to a version that includes a patch for the command injection vulnerability. Updating to the latest version of lsof will ensure the vulnerability is mitigated.
As a temporary workaround, users can implement input validation and sanitization to prevent command injection. It is important to carefully validate and sanitize any user input that is passed to the lsof module.
References
Related vulnerabilities
Recent vulnerabilities recorded for lsof.
