CVE-2024-2973

Session Smart Router(SSR): On redundant router deployments API authentication can be bypassed

Description

An Authentication Bypass Using an Alternate Path or Channel vulnerability in Juniper Networks Session Smart Router or conductor running with a redundant peer allows a network based attacker to bypass authentication and take full control of the device. Only routers or conductors that are running in high-availability redundant configurations are affected by this vulnerability. No other Juniper Networks products or platforms are affected by this issue. This issue affects: Session Smart Router:  * All versions before 5.6.15,  * from 6.0 before 6.1.9-lts,  * from 6.2 before 6.2.5-sts. Session Smart Conductor:  * All versions before 5.6.15,  * from 6.0 before 6.1.9-lts,  * from 6.2 before 6.2.5-sts.  WAN Assurance Router:  * 6.0 versions before 6.1.9-lts,  * 6.2 versions before 6.2.5-sts.

Remediation

Solution:

  • The following software releases have been updated to resolve this issue: Session Smart Router: SSR-5.6.15, SSR-6.1.9-lts, SSR-6.2.5-sts, and subsequent releases. It is suggested to upgrade all affected systems to these versions of software. In a Conductor-managed deployment, it is sufficient to upgrade the Conductor nodes only and the fix will be applied automatically to all connected routers. As practical, the routers should still be upgraded to a fixed version however they will not be vulnerable once they connect to an upgraded Conductor. This vulnerability has been patched automatically on affected devices for WAN Assurance routers connected to the Mist Cloud. For systems that are provisioned in a High-Availability cluster, these should be upgraded to a patched version as soon as practical (SSR-6.1.9 or SSR-6.2.5). It is important to note that the fix is applied automatically on managed routers by a Conductor or on WAN assurance routers has no impact on data-plane functions of the router. The application of the fix is non-disruptive to production traffic. There may be a momentary downtime (less than 30 seconds) to the web-based management and APIs however this will resolve quickly.

Workaround:

  • There are no known workarounds for this issue.

Category

10.0
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.22%
Vendor Advisory juniper.net
Affected: Juniper Networks Session Smart Router
Affected: Juniper Networks Session Smart Conductor
Affected: Juniper Networks WAN Assurance Router
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA83126 vendor advisory
https://support.juniper.net/support/eol/software/ssr/ related

Frequently Asked Questions

What is the severity of CVE-2024-2973?
CVE-2024-2973 has been scored as a critical severity vulnerability.
How to fix CVE-2024-2973?
To fix CVE-2024-2973: The following software releases have been updated to resolve this issue: Session Smart Router: SSR-5.6.15, SSR-6.1.9-lts, SSR-6.2.5-sts, and subsequent releases. It is suggested to upgrade all affected systems to these versions of software. In a Conductor-managed deployment, it is sufficient to upgrade the Conductor nodes only and the fix will be applied automatically to all connected routers. As practical, the routers should still be upgraded to a fixed version however they will not be vulnerable once they connect to an upgraded Conductor. This vulnerability has been patched automatically on affected devices for WAN Assurance routers connected to the Mist Cloud. For systems that are provisioned in a High-Availability cluster, these should be upgraded to a patched version as soon as practical (SSR-6.1.9 or SSR-6.2.5). It is important to note that the fix is applied automatically on managed routers by a Conductor or on WAN assurance routers has no impact on data-plane functions of the router. The application of the fix is non-disruptive to production traffic. There may be a momentary downtime (less than 30 seconds) to the web-based management and APIs however this will resolve quickly.
Is CVE-2024-2973 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-2973 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-2973?
CVE-2024-2973 affects Juniper Networks Session Smart Router, Juniper Networks Session Smart Conductor, Juniper Networks WAN Assurance Router.
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