Description
A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity.
With a specific request to installAppPackage.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of
integrity
for a certain
part of the file system, which may allow chaining to other vulnerabilities.
This issue affects Juniper Networks Junos OS on EX Series:
* All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions
prior to
21.3R3-S5; * 21.4 versions
prior to
21.4R3-S4; * 22.1 versions
prior to
22.1R3-S3; * 22.2 versions
prior to
22.2R3-S1; * 22.3 versions
prior to
22.3R2-S2, 22.3R3; * 22.4 versions
prior to
22.4R2-S1, 22.4R3.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos OS | < 20.4R3-S8; >= 21.1, < 21.1*; >= 21.2, < 21.2R3-S6; >= 21.3, < 21.3R3-S5; >= 21.4, < 21.4R3-S4; >= 22.1, < 22.1R3-S3; >= 22.2, < 22.2R3-S1; >= 22.3, < 22.3R2-S2, 22.3R3; >= 22.4, < 22.4R2-S1, 22.4R3 |
References
- https://supportportal.juniper.net/JSA72300Vendor Advisory
- https://supportportal.juniper.net/JSA72300Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36847US Government Resource
Timeline
- Published
- Aug 17, 2023
- Last modified
- Jun 17, 2026
- Added to CISA KEV
- Nov 13, 2023
- NVD status
- Analyzed