EUVD-2025-21167Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root.
When a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device. This issue affects:
Junos OS:
- all versions before 21.2R3-S9,
- 21.4 versions before 21.4R3-S8,
- 22.2 versions before 22.2R3-S6,
- 22.3 versions before 22.3R3-S3,
- 22.4 versions before 22.4R3-S6,
- 23.2 versions before 23.2R2-S1,
- 23.4 versions before 23.4R1-S2, 23.4R2;
Junos OS Evolved:
- all versions before 22.4R3-S6-EVO,
- 23.2-EVO versions before 23.2R2-S1-EVO,
- 23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.
Analysis
An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the CLI of Juniper Networks Junos OS and Junos OS Evolved allows a high privileged, local attacker to escalated their privileges to root.
When a user provides specifically crafted arguments to the 'request system logout' command, these will be executed as root on the shell, which can completely compromise the device. This issue affects:
Junos OS:
- all versions before 21.2R3-S9,
- 21.4 versions before 21.4R3-S8,
- 22.2 versions before 22.2R3-S6,
- 22.3 versions before 22.3R3-S3,
- 22.4 versions before 22.4R3-S6,
- 23.2 versions before 23.2R2-S1,
- 23.4 versions before 23.4R1-S2, 23.4R2;
Junos OS Evolved:
- all versions before 22.4R3-S6-EVO,
- 23.2-EVO versions before 23.2R2-S1-EVO,
- 23.4-EVO versions before 23.4R1-S2-EVO, 23.4R2-EVO.
Technical ContextAI
Command injection allows an attacker to execute arbitrary OS commands on the host system through a vulnerable application that passes user input to system shells. This vulnerability is classified as OS Command Injection (CWE-78).
RemediationAI
Avoid passing user input to system commands. Use language-specific APIs instead of shell commands. If unavoidable, use strict input validation and escaping.
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Same weakness CWE-78 – OS Command Injection
View allSame technique Command Injection
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External POC / Exploit Code
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