A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.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 SRX 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-S5; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| 2023-11-13 | 2023-11-17 | Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Secondary | 3.1 | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| Primary | 3.1 | 5.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| Hyperlink | Source | Resource |
|---|---|---|
| https://supportportal.juniper.net/JSA72300 | sirt@juniper.net | Vendor Advisory |
| https://supportportal.juniper.net/JSA72300 | af854a3a-2127-422b-91ae-364da2661108 | Vendor Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36846 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | US Government Resource |