CVE-2024-21620CWE-79

Junos OS: SRX Series and EX Series: J-Web doesn't sufficiently sanitize input to prevent XSS

High · published January 25, 2024

CVSS v3.1
8.8
EPSS
1%
Percentile
59.5
In the wild
Unconfirmed
What it is

An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an attacker to construct a URL that when visited by another user enables the attacker to execute commands with the target's permissions, including an administrator.

A specific invocation of the emit_debug_note method in webauth_operation.php will echo back the data it receives.

This issue affects Juniper Networks Junos OS on SRX Series and EX Series:

* All versions earlier than 20.4R3-S10;

* 21.2 versions earlier than 21.2R3-S8;

* 21.4 versions earlier than 21.4R3-S6;

* 22.1 versions earlier than 22.1R3-S5;

* 22.2 versions earlier than 22.2R3-S3;

* 22.3 versions earlier than 22.3R3-S2;

* 22.4 versions earlier than 22.4R3-S1;

* 23.2 versions earlier than 23.2R2;

* 23.4 versions earlier than 23.4R2.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00908 · 59.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2024-01-25T22:50Z
EPSS history
Timeline
  • 25 JAN 22:50Z
    Junos OS: SRX Series and EX Series: J-Web doesn't sufficiently sanitize input to prevent XSS
    cvelistv5