RCE in Linux Kernel
CVE-2024-21892
On Linux, Node.js ignores certain environment variables if those may have been set by an unprivileged user while the process is running with elevated privileges with the only exception of CAP_NET_BIND_SERVICE. Due to a bug in the implementation of this exception, Node.js incorrectly applies this exception even when certain other capabilities have been set. This allows unprivileged users to inject code that inherits the process's elevated privileges.
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.006 (43.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- Nodejs Node — versions 4.0, 5.0, 6.0
- Nodejs Node.js
Weakness classification (CWE)
Public proof-of-concept exploits
- Aashini4001/Elevate-labs-task-3
- Cybervixy/Vulnerability-Management
- Ki1shan/-Basic-Vulnerability-Scan
- KshitijPatil08/Elevate-Task3
- NaInSec/CVE-LIST
- Oju-kwu/Vulnerability-Management-Lab
- Oluwaseun-Joseph/Credentialed-Vulnerability-Assessment-Lab
- PrasannaSrinivasK/Task-3
- Sarath-P-2/vulnerability-scan
- Teedico/Nessus_
References
- support@hackerone.com (Third Party Advisory, Issue Tracking)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2024-21892?
- CVE-2024-21892 is a high-severity vulnerability in Linux Kernel, classified under Code Injection. CVSS score: 7.8/10. Published 2024-02-20.
- How severe is CVE-2024-21892?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2024-21892 known to be exploited?
- 19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.