Juniper SSR < 7.0.5 / 7.1.x < 7.1.7 / 7.2.x < 7.2.3 Multiple Vulnerabilities (JSA112183)

critical Nessus Plugin ID 374264

Synopsis

The remote host is affected by multiple vulnerabilities.

Description

The version of Juniper Session Smart Router (SSR) or Session Smart Conductor installed on the remote host is prior to 7.0.5, 7.1.x prior to 7.1.7, or 7.2.x prior to 7.2.3. It is, therefore, affected by multiple vulnerabilities as referenced in the JSA112183 advisory.

- An Improper Neutralization of Special Elements used in an OS Command vulnerability in the AutomatedProvisioner in Juniper Networks Session Smart Conductor allows a remote attacker to execute arbitrary commands as root via a specially crafted salt minion ID. (CVE-2026-103406)

- A Missing authentication for critical function vulnerability in Juniper Networks Session Smart Router allows an unauthenticated network-based attacker to obtain administrative privileges by passing crafted URL parameters to an insecure endpoint running as root. Note that this vulnerability can only be exploited prior to the device being onboarded to Mist/Conductor. The issue can no longer be exploited once a device is onboarded to Mist/Conductor. (CVE-2026-103409)

- An Improper Link Resolution Before File Access ('Link Following') vulnerability in the unauthenticated web server handlers in Juniper Networks Session Smart Router and Session Smart Conductor allows a local unprivileged user to overwrite arbitrary files as root via unauthenticated API endpoints. This vulnerability can be exploited on Mist-managed routers and on unmanaged Routers that have not yet been onboarded to a Conductor. Routers already managed by Conductor are not affected. (CVE-2026-103401)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Juniper Session Smart Router or Session Smart Conductor version 7.0.5, 7.1.7, 7.2.3 or later.

See Also

https://supportportal.juniper.net/JSA112183

Plugin Details

Severity: Critical

ID: 374264

File Name: juniper_jsa112183.nasl

Version: 1.1

Type: Local

Family: Misc.

Published: 10/30/2026

Updated: 10/30/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.57

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-103406

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnerability Information

CPE: cpe:/h:juniper:128_technology_session_smart_router

Required KB Items: installed_sw/Juniper Session Smart Router

Patch Publication Date: 10/28/2026

Vulnerability Publication Date: 10/28/2026

Reference Information

CVE: CVE-2026-103390, CVE-2026-103391, CVE-2026-103392, CVE-2026-103393, CVE-2026-103394, CVE-2026-103400, CVE-2026-103401, CVE-2026-103402, CVE-2026-103403, CVE-2026-103404, CVE-2026-103405, CVE-2026-103406, CVE-2026-103407, CVE-2026-103408, CVE-2026-103409, CVE-2026-103410, CVE-2026-103411, CVE-2026-106079

IAVA: 2026-A-1225

JSA: JSA112183