RCE in Juniper Junos OS Evolved
CVE-2024-39524
An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading to a full compromise of the system. The Junos OS Evolved CLI doesn't properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level. This issue affects Junos OS Evolved: All versions before 20.4R3-S7-EVO, 21.2-EVO versions before 21.2R3-S8-EVO, 21.4-EVO versions before 21.4R3-S7-EVO, 22.2-EVO versions before 22.2R3-EVO, 22.3-EVO versions before 22.3R2-EVO, 22.4-EVO versions before 22.4R2-EVO.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.003 (16.4th 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
- Juniper Junos_os_evolved — versions 20.4, 21.2, 21.4
- Juniper Networks Junos Os Evolved — versions 0, 21.2-EVO, 21.4-EVO
Weakness classification (CWE)
References
- sirt@juniper.net (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-39524?
- CVE-2024-39524 is a high-severity vulnerability in Juniper Junos OS Evolved, classified under OS Command Injection. CVSS score: 7.8/10. Published 2024-07-11.
- How severe is CVE-2024-39524?
- High severity. CVSS v3 base score is 7.8 out of 10.