Mitigation Strategies

To mitigate this vulnerability, ensure that your Junos OS or Junos OS Evolved device is updated to a fixed version that addresses this issue.

• Upgrade to Junos OS versions 22.4R3-S7 or later, 23.2R2-S4 or later, 23.4R2-S6 or later, 24.2R1-S2 or later, or 24.4R1-S2 or later as applicable.
• Upgrade to Junos OS Evolved versions 22.4R3-S7-EVO or later, 23.2R2-S4-EVO or later, 23.4R2-S6-EVO or later, 24.2R2-EVO or later, or 24.4R1-S1-EVO or later as applicable.

Additionally, review and disable any configurations that allow unsigned Python op scripts to run, as this configuration enables the privilege escalation.

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Executive Summary

This vulnerability is an Execution with Unnecessary Privileges issue in the User Interface (UI) of Juniper Networks Junos OS and Junos OS Evolved. It allows a local, low-privileged attacker to gain root privileges on the system.

Specifically, when a configuration that permits unsigned Python operational scripts is present on the device, a non-root user can execute malicious operational scripts with root-equivalent privileges, leading to privilege escalation.

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Impact Analysis

This vulnerability can have a significant impact as it allows a local attacker with low privileges to escalate their privileges to root level. This means the attacker can fully compromise the affected system, potentially gaining complete control over it.

Such a compromise can lead to unauthorized access, modification, or destruction of data, disruption of services, and further exploitation of the network or connected systems.

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