Paper/Archive/CVE-2025-21589

CVE-2025-21589

Juniper Networks Session Smart Router — Session Smart Router, Session Smart Conductor, WAN Assurance Router: API Authentication Bypass vulnerability

Description · from the CVE record

An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router may allows a network-based attacker to bypass authentication and take administrative control of the device. This issue affects Session Smart Router:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2;  This issue affects Session Smart Conductor:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2;  This issue affects WAN Assurance Managed Routers:  * from 5.6.7 before 5.6.17,  * from 6.0 before 6.0.8 (affected from 6.0.8), * from 6.1 before 6.1.12-lts,  * from 6.2 before 6.2.8-lts,  * from 6.3 before 6.3.3-r2.

Affected

ProductAffectedFixed inSource
Session Smart Router5.6.7 – < 5.6.175.6.17CNA
Session Smart Router6.1 – < 6.1.12-lts6.1.12-ltsCNA
Session Smart Router6.2 – < 6.2.8-lts6.2.8-ltsCNA
Session Smart Router6.3 – < 6.3.3-r26.3.3-r2CNA
Session Smart Conductor5.6.7 – < 5.6.175.6.17CNA
Session Smart Conductor6.1 – < 6.1.12-lts6.1.12-ltsCNA
Session Smart Conductor6.2 – < 6.2.8-lts6.2.8-ltsCNA
Session Smart Conductor6.3 – < 6.3.3-r26.3.3-r2CNA
WAN Assurance Managed Router5.6.7 – < 5.6.175.6.17CNA
WAN Assurance Managed Router6.1 – < 6.1.12-lts6.1.12-ltsCNA
WAN Assurance Managed Router6.2 – < 6.2.8-lts6.2.8-ltsCNA
WAN Assurance Managed Router6.3 – < 6.3.3-r26.3.3-r2CNA

Scores by source

juniper (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
juniper (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisorysupportportal.juniper.netrefsupport.juniper.net/support/eol/software/ssradvisorykb.juniper.net/JSA94663