PT-2024-5568 · Juniper Networks · Junos+1

Published 2024-07-10 · Updated 2024-07-11 · CVE-2024-39556

Positive Technologies (AI Summary)

CVSS v3.1

7.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Junos OS versions prior to 21.4R3-S7 Junos OS versions from 22.1 before 22.1R3-S6 Junos OS versions from 22.2 before 22.2R3-S4 Junos OS versions from 22.3 before 22.3R3-S3 Junos OS versions from 22.4 before 22.4R3-S2 Junos OS versions from 23.2 before 23.2R2 Junos OS versions from 23.4 before 23.4R1-S1, 23.4R2 Junos OS Evolved versions prior to 21.4R3-S7-EVO Junos OS Evolved versions from 22.1-EVO before 22.1R3-S6-EVO Junos OS Evolved versions from 22.2-EVO before 22.2R3-S4-EVO Junos OS Evolved versions from 22.3-EVO before 22.3R3-S3-EVO Junos OS Evolved versions from 22.4-EVO before 22.4R3-S2-EVO Junos OS Evolved versions from 23.2-EVO before 23.2R2-EVO Junos OS Evolved versions from 23.4-EVO before 23.4R1-S1-EVO, 23.4R2-EVO

Description A Stack-Based Buffer Overflow issue in Juniper Networks Junos OS and Junos OS Evolved may allow a local, low-privileged attacker with access to the CLI to load a malicious certificate file, leading to a limited Denial of Service (DoS) or privileged code execution. This can be achieved by exploiting the 'set security certificates' command with a crafted certificate file, potentially causing a crash of the command management daemon (mgd) or triggering a stack-based buffer overflow.

Recommendations For Junos OS versions prior to 21.4R3-S7, update to version 21.4R3-S7 or later. For Junos OS versions from 22.1 before 22.1R3-S6, update to version 22.1R3-S6 or later. For Junos OS versions from 22.2 before 22.2R3-S4, update to version 22.2R3-S4 or later. For Junos OS versions from 22.3 before 22.3R3-S3, update to version 22.3R3-S3 or later. For Junos OS versions from 22.4 before 22.4R3-S2, update to version 22.4R3-S2 or later. For Junos OS versions from 23.2 before 23.2R2, update to version 23.2R2 or later. For Junos OS versions from 23.4 before 23.4R1-S1, 23.4R2, update to version 23.4R1-S1 or later. For Junos OS Evolved versions prior to 21.4R3-S7-EVO, update to version 21.4R3-S7-EVO or later. For Junos OS Evolved versions from 22.1-EVO before 22.1R3-S6-EVO, update to version 22.1R3-S6-EVO or later. For Junos OS Evolved versions from 22.2-EVO before 22.2R3-S4-EVO, update to version 22.2R3-S4-EVO or later. For Junos OS Evolved versions from 22.3-EVO before 22.3R3-S3-EVO, update to version 22.3R3-S3-EVO or later. For Junos OS Evolved versions from 22.4-EVO before 22.4R3-S2-EVO, update to version 22.4R3-S2-EVO or later. For Junos OS Evolved versions from 23.2-EVO before 23.2R2-EVO, update to version 23.2R2-EVO or later. For Junos OS Evolved versions from 23.4-EVO before 23.4R1-S1-EVO, 23.4R2-EVO, update to version 23.4R1-S1-EVO or later. As a temporary workaround, consider restricting access to the set security certificates command until a patch is available.

Fix

DoS

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

BDU:2024-06247

CVE-2024-39556

Affected Products

Junos

Junos Evolved

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2024-39556 · Security Note
• https://supportportal.juniper.net/JSA83016 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-39556 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06247 · Security Note
• https://twitter.com/CVEnew/status/1811322687807275117 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1811200689739084122 · Twitter Post
• https://t.me/cvedetector/610 · Telegram Post