An Improper Following of Specification by Caller vulnerability in web management (J-Web, Captive Portal, 802.1X, Juniper Secure Connect (JSC) of Juniper Networks Junos OS on SRX Series, EX Series, MX240, MX480, MX960, QFX5120 Series, allows an unauthenticated, network-based attacker, sending genuine traffic targeted to the device to cause the CPU to climb until the device becomes unresponsive.
Continuous receipt of these packets will create a sustained Denial of Service (DoS) condition.
This issue affects Junos OS:
* All versions before 21.4R3-S9,
* from 22.2 before 22.2R3-S5,
* from 22.4 before 22.4R3-S4,
* from 23.2 before 23.2R2-S3,
* from 23.4 before 23.4R2-S3,
* from 24.2 before 24.2R1-S1, 24.2R2.
An indicator of compromise is to review the CPU % of the httpd process in the CLI:
e.g.
show system processes extensive | match httpd PID nobody 52 0 20M 191M select 2 0:01 80.00% httpd{httpd} <<<<< the percentage of httpd usage if high may be an indicator
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA96452 |
Configurations
No configuration.
History
15 Apr 2025, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-573 |
11 Apr 2025, 15:40
| Type | Values Removed | Values Added |
|---|---|---|
| Summary |
|
09 Apr 2025, 20:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-04-09 20:15
Updated : 2025-04-15 21:15
NVD link : CVE-2025-21601
Mitre link : CVE-2025-21601
CVE.ORG link : CVE-2025-21601
JSON object : View
Products Affected
No product.
CWE
CWE-573
Improper Following of Specification by Caller