CVE-2024-39565

Junos OS: J-Web: An unauthenticated, network-based attacker can perform XPATH injection attack against a device.

HIGH

8.8

CVSS Score

Published: July 10, 2024 at 10:55 PM UTC

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

2 products affected across 2 vendorsJunosJ Web

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Severity

HIGH8.8

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

An Improper Neutralization of Data within XPath Expressions ('XPath Injection') vulnerability in J-Web shipped with Juniper Networks Junos OS allows an unauthenticated, network-based attacker to execute remote commands on the target device. While an administrator is logged into a J-Web session or has previously logged in and subsequently logged out of their J-Web session, the attacker can arbitrarily execute commands on the target device with the other user's credentials. In the worst case, the attacker will have full control over the device. This issue affects Junos OS: * All versions before 21.2R3-S8, * from 21.4 before 21.4R3-S7, * 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.

Affected

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

J Web · Juniper

95%

All versions

juniper-ex2300 (environment) · juniper-ex2300-c (environment) · juniper-ex3400 (environment) · juniper-ex4000 (environment) · juniper-ex4100 (environment) · juniper-ex4100-f (environment) · juniper-ex4100-h (environment) · juniper-ex4300 (environment) · juniper-ex4400 (environment) · juniper-ex4600 (environment) · juniper-ex4650 (environment) · juniper-ex9204 (environment) · juniper-ex9208 (environment) · juniper-ex9214 (environment) · juniper-srx1500 (environment) · juniper-srx1600 (environment) · juniper-srx2300 (environment) · juniper-srx300 (environment) · juniper-srx320 (environment) · juniper-srx340 (environment) · juniper-srx345 (environment) · juniper-srx380 (environment) · juniper-srx4100 (environment) · juniper-srx4120 (environment) · juniper-srx4200 (environment) · juniper-srx4300 (environment) · juniper-srx4600 (environment) · juniper-srx4700 (environment) · juniper-srx5400 (environment) · juniper-srx5600 (environment) · juniper-srx5800 (environment)

Junos · Juniper Networks

95%

v < 21.2v < 21.2R3-S8v < 21.2r3-s821.4 ≤ v < 21.4R3-S721.4 ≤ v < 21.4r3-s722.2 ≤ v < 22.2R3-S422.2 ≤ v < 22.2r3-s422.3 ≤ v < 22.3R3-S322.3 ≤ v < 22.3r3-s322.4 ≤ v < 22.4R3-S222.4 ≤ v < 22.4r3-s223.2 ≤ v < 23.2R223.2 ≤ v < 23.2r223.4 ≤ v < 23.4R1-S1, 23.4R223.4 ≤ v < 23.4r1-s123.4 ≤ v < 23.4r221.2 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 21.4 r3-s1 21.4 r3-s2 21.4 r3-s3 21.4 r3-s4 21.4 r3-s5 21.4 r3-s6 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 22.2 r3-s1 22.2 r3-s2 22.2 r3-s3 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 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 22.4 r3 22.4 r3-s1 23.2 23.2 r1 23.2 r1-s1 23.2 r1-s2 23.4 23.4 r1 23.4 r2

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

Affected range stops below 21.4R3-S7, so it looks safe — our inference, not a vendor statement

Affected range stops below 22.2R3-S4, so it looks safe — our inference, not a vendor statement

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

Affected range stops below 22.4R3-S2, so it looks safe — our inference, not a vendor statement

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

Affected range stops below 23.4R1-S1, 23.4R2, so it looks safe — our inference, not a vendor statement

Affected range stops below 23.4r1-s1, so it looks safe — our inference, not a vendor statement

Affected range stops below 23.4r2, 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

References (3)

SignaturePatchProduct

Source: [email protected]

https://support.juniper.net/support/downloads/?p=283

Vendor Advisory

Source: [email protected]

https://supportportal.juniper.net/JSA83023

RelatedVendor Advisory

Source: [email protected]

https://www.first.org/cvss/calculator/v4-0#CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/AU:Y/R:I/V:C/RE:L/U:Amber

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

8.8HIGHjuniper

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-643

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