Description
An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges.
This issue affects Juniper Networks Junos OS:
* All versions prior to 20.4R3-S5; * 21.1 versions prior to 21.1R3-S4; * 21.2 versions prior to 21.2R3-S4; * 21.3 versions prior to 21.3R3-S3; * 21.4 versions prior to 21.4R3-S1.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | < 20.4R3-S5; >= 21.1, < 21.1R3-S4; >= 21.2, < 21.2R3-S4; >= 21.3, < 21.3R3-S3; >= 21.4, < 21.4R3-S1 |
References
- https://supportportal.juniper.net/JSA73158Vendor Advisory
- https://supportportal.juniper.net/JSA73158Vendor Advisory
Timeline
- Published
- Oct 13, 2023
- Last modified
- Jun 17, 2026
- NVD status
- Modified