CVE-2024-39556 Information

Description

A Stack-Based Buffer Overflow vulnerability in Juniper Networks Junos OS and Juniper Networks Junos OS Evolved may allow a local low-privileged attacker with access to the CLI the ability to load a malicious certificate file leading to a limited Denial of Service (DoS) or privileged code execution.

By exploiting the ‘set security certificates’ command with a crafted certificate file a malicious attacker with access to the CLI could cause a crash of the command management daemon (mgd) limited to the local user’s command interpreter or potentially trigger a stack-based buffer overflow.

This issue affects:

 Junos OS:

All versions before 21.4R3-S7 
from 22.1 before 22.1R3-S6 
from 22.2 before 22.2R3-S4 
from 22.3 before 22.3R3-S3 
from 22.4 before 22.4R3-S2 
from 23.2 before 23.2R2 
from 23.4 before 23.4R1-S1 23.4R2; 

Junos OS Evolved:

All versions before 21.4R3-S7-EVO 
from 22.1-EVO before 22.1R3-S6-EVO 
from 22.2-EVO before 22.2R3-S4-EVO 
from 22.3-EVO before 22.3R3-S3-EVO 
from 22.4-EVO before 22.4R3-S2-EVO 
from 23.2-EVO before 23.2R2-EVO 
from 23.4-EVO before 23.4R1-S1-EVO 23.4R2-EVO.

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Reference

https://supportportal.juniper.net/JSA83016

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.4