CVE-2024-39546

Junos OS Evolved: Local low-privilege user can gain root permissions leading to privilege escalation

HIGH

7.3

CVSS Score

Published: July 11, 2024 at 04:23 PM UTC

Updated: June 17, 2026 at 07:42 AM UTC

2 products affected across 2 vendorsJunos OS EvolvedJunos OS Evolved

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Severity

HIGH7.3

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A Missing Authorization vulnerability in the Socket Intercept (SI) command file interface of Juniper Networks Junos OS Evolved allows an authenticated, low-privilege local attacker to modify certain files, allowing the attacker to cause any command to execute with root privileges leading to privilege escalation ultimately compromising the system. This issue affects Junos OS Evolved: * All versions prior to 21.2R3-S8-EVO, * 21.4 versions prior to 21.4R3-S6-EVO, * 22.1 versions prior to 22.1R3-S5-EVO, * 22.2 versions prior to 22.2R3-S3-EVO, * 22.3 versions prior to 22.3R3-S3-EVO, * 22.4 versions prior to 22.4R3-EVO, * 23.2 versions prior to 23.2R2-EVO.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Junos OS Evolved · Juniper

95%

18.3 r1 19.1 r1 19.1 r2 19.2 r1 19.2 r2 19.3 r1 19.3 r2 19.4 r1 19.4 r1-s1 19.4 r2 19.4 r2-s1 19.4 r2-s2 20.1 20.1 r1 20.1 r1-s1 20.1 r2 20.1 r2-s1 20.1 r2-s2 20.1 r2-s3 20.1 r2-s4 20.1 r2-s5 20.1 r3 20.2 20.2 r1 20.2 r1-s1 20.2 r2 20.2 r2-s1 20.2 r3 20.3 20.3 r1 20.3 r1-s1 20.3 r1-s2 20.3 r1-s3 20.3 r2 20.4 20.4 r1 20.4 r1-s1 20.4 r1-s2 20.4 r2 20.4 r2-s1 20.4 r2-s2 20.4 r2-s3 20.4 r3 20.4 r3-s1 20.4 r3-s2 20.4 r3-s3 20.4 r3-s4 20.4 r3-s5 20.4 r3-s6 20.4 r3-s7 20.4 r3-s8 20.4 r3-s9 21.1 21.1 r1 21.1 r1-s1 21.1 r2 21.1 r3 21.1 r3-s1 21.1 r3-s2 21.1 r3-s3 21.2 21.2 r1 21.2 r1-s1 21.2 r1-s2 21.2 r2 21.2 r2-s1 21.2 r2-s2 21.2 r3 21.2 r3-s1 21.2 r3-s2 21.2 r3-s3 21.2 r3-s4 21.2 r3-s5 21.2 r3-s6 21.2 r3-s7 21.4 21.4 r1 21.4 r1-s1 21.4 r1-s2 21.4 r2 21.4 r2-s1 21.4 r2-s2 21.4 r3-s1 21.4 r3-s2 21.4 r3-s3 21.4 r3-s4 21.4 r3-s5 22.1 22.1 r1 22.1 r1-s1 22.1 r1-s2 22.1 r2 22.1 r2-s1 22.1 r3-s1 22.1 r3-s2 22.1 r3-s3 22.1 r3-s4 22.2 22.2 r1 22.2 r1-s1 22.2 r1-s2 22.2 r2 22.2 r2-s1 22.2 r2-s2 22.2 r3-s1 22.2 r3-s2 22.3 22.3 r1 22.3 r1-s1 22.3 r1-s2 22.3 r2 22.3 r2-s1 22.3 r2-s2 22.3 r3-s1 22.3 r3-s2 22.4 22.4 r1 22.4 r1-s1 22.4 r1-s2 22.4 r2 22.4 r2-s1 22.4 r2-s2 23.2 23.2 r1 23.2 r1-s1 23.2 r1-s2

Junos OS Evolved · Juniper Networks

60%

v < 21.2R3-S8-EVO21.4 ≤ v < 21.4R3-S6-EVO22.1 ≤ v < 22.1R3-S5-EVO22.2 ≤ v < 22.2R3-S3-EVO22.3 ≤ v < 22.3R3-S3-EVO22.4 ≤ v < 22.4R3-EVO23.2 ≤ v < 23.2R2-EVO21.4 22.1 22.2 22.3 22.4 23.2

Affected range stops below 21.2R3-S8-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.4R3-S6-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.1R3-S5-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.2R3-S3-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.3R3-S3-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.4R3-EVO, so it looks safe — our inference, not a vendor statement

Affected range stops below 23.2R2-EVO, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://supportportal.juniper.net/JSA83008

References (1)

Vendor Advisory

Source: [email protected]

https://supportportal.juniper.net/JSA83008

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHjuniper

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-862

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