CVE-2024-21619

Junos OS: SRX Series and EX Series: J-Web - unauthenticated access to temporary files containing sensitive information

HIGH

7.5

CVSS Score

Published: January 25, 2024 at 10:48 PM UTC

Updated: June 17, 2026 at 07:09 AM UTC

104 products affected across 2 vendorsJunosSRX5600SRX5800

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Severity

HIGH7.5

Exploit prediction

EPSS 0.9%

SSVC

No known exploit

Description

A Missing Authentication for Critical Function vulnerability combined with a Generation of Error Message Containing Sensitive Information vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an unauthenticated, network-based attacker to access sensitive system information. When a user logs in, a temporary file which contains the configuration of the device (as visible to that user) is created in the /cache folder. An unauthenticated attacker can then attempt to access such a file by sending a specific request to the device trying to guess the name of such a file. Successful exploitation will reveal configuration information. This issue affects Juniper Networks Junos OS on SRX Series and EX Series: * All versions earlier than 20.4R3-S9; * 21.2 versions earlier than 21.2R3-S7; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S6; * 22.1 versions earlier than 22.1R3-S5; * 22.2 versions earlier than 22.2R3-S3; * 22.3 versions earlier than 22.3R3-S2; * 22.4 versions earlier than 22.4R3; * 23.2 versions earlier than 23.2R1-S2, 23.2R2.

Affected

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

Junos · Juniper Networks

95%

v < 20.4v < 20.4R3-S921.2 ≤ v < 21.2R3-S721.3 ≤ v < 21.3R3-S521.4 ≤ v < 21.4R3-S622.1 ≤ v < 22.1R3-S522.2 ≤ v < 22.2R3-S322.3 ≤ v < 22.3R3-S222.4 ≤ v < 22.4R323.2 ≤ v < 23.2R1-S2, 23.2R220.4 20.4 r1 20.4 r1-s1 20.4 r2 20.4 r2-s1 20.4 r2-s2 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 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 21.3 21.3 r1 21.3 r1-s1 21.3 r1-s2 21.3 r2 21.3 r2-s1 21.3 r2-s2 21.3 r3 21.3 r3-s1 21.3 r3-s2 21.3 r3-s3 21.3 r3-s4 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 22.1 22.1 r1 22.1 r1-s1 22.1 r1-s2 22.1 r2 22.1 r2-s1 22.1 r2-s2 22.1 r3 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 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 22.3 r3-s1 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

Affected range stops below 20.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 20.4R3-S9, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.2R3-S7, so it looks safe — our inference, not a vendor statement

Affected range stops below 21.3R3-S5, so it looks safe — our inference, not a vendor statement

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

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

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

Affected range stops below 22.3R3-S2, so it looks safe — our inference, not a vendor statement

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

Affected range stops below 23.2R1-S2, 23.2R2, so it looks safe — our inference, not a vendor statement

juniper-ex-redundant-power-system (environment) · juniper-ex-rps (environment) · juniper-ex2200 (environment) · juniper-ex2200-c (environment) · juniper-ex2200-vc (environment) · juniper-ex2300 (environment) · juniper-ex2300-24mp (environment) · juniper-ex2300-24p (environment) · juniper-ex2300-24t (environment) · juniper-ex2300-48mp (environment) · juniper-ex2300-48p (environment) · juniper-ex2300-48t (environment) · juniper-ex2300-c (environment) · juniper-ex2300-multigigabit (environment) · juniper-ex2300m (environment) · juniper-ex3200 (environment) · juniper-ex3300 (environment) · juniper-ex3300-vc (environment) · juniper-ex3400 (environment) · juniper-ex4100 (environment) · juniper-ex4100-f (environment) · juniper-ex4100-multigigabit (environment) · juniper-ex4200 (environment) · juniper-ex4200-vc (environment) · juniper-ex4300 (environment) · juniper-ex4300-24p (environment) · juniper-ex4300-24p-s (environment) · juniper-ex4300-24t (environment) · juniper-ex4300-24t-s (environment) · juniper-ex4300-32f (environment) · juniper-ex4300-32f-dc (environment) · juniper-ex4300-32f-s (environment) · juniper-ex4300-48mp (environment) · juniper-ex4300-48mp-s (environment) · juniper-ex4300-48p (environment) · juniper-ex4300-48p-s (environment) · juniper-ex4300-48t (environment) · juniper-ex4300-48t-afi (environment) · juniper-ex4300-48t-dc (environment) · juniper-ex4300-48t-dc-afi (environment) · juniper-ex4300-48t-s (environment) · juniper-ex4300-48tafi (environment) · juniper-ex4300-48tdc (environment) · juniper-ex4300-48tdc-afi (environment) · juniper-ex4300-mp (environment) · juniper-ex4300-multigigabit (environment) · juniper-ex4300-vc (environment) · juniper-ex4300m (environment) · juniper-ex4400 (environment) · juniper-ex4400-24x (environment) · juniper-ex4400-multigigabit (environment) · juniper-ex4500 (environment) · juniper-ex4500-vc (environment) · juniper-ex4550 (environment) · juniper-ex4550-vc (environment) · juniper-ex4600 (environment) · juniper-ex4600-vc (environment) · juniper-ex4650 (environment) · juniper-ex6200 (environment) · juniper-ex6210 (environment) · juniper-ex8200 (environment) · juniper-ex8200-vc (environment) · juniper-ex8208 (environment) · juniper-ex8216 (environment) · juniper-ex9200 (environment) · juniper-ex9204 (environment) · juniper-ex9208 (environment) · juniper-ex9214 (environment) · juniper-ex9250 (environment) · juniper-ex9251 (environment) · juniper-ex9253 (environment) · juniper-srx100 (environment) · juniper-srx110 (environment) · juniper-srx1400 (environment) · juniper-srx1500 (environment) · juniper-srx1600 (environment) · juniper-srx210 (environment) · juniper-srx220 (environment) · juniper-srx2300 (environment) · juniper-srx240 (environment) · juniper-srx240h2 (environment) · juniper-srx240m (environment) · juniper-srx300 (environment) · juniper-srx320 (environment) · juniper-srx340 (environment) · juniper-srx3400 (environment) · juniper-srx345 (environment) · juniper-srx3600 (environment) · juniper-srx380 (environment) · juniper-srx4000 (environment) · juniper-srx4100 (environment) · juniper-srx4200 (environment) · juniper-srx4300 (environment) · juniper-srx4600 (environment) · juniper-srx4700 (environment) · juniper-srx5000 (environment) · juniper-srx5400 (environment) · juniper-srx550 (environment) · juniper-srx550-hm (environment) · juniper-srx550m (environment) · juniper-srx5600 (environment) · juniper-srx5800 (environment) · juniper-srx650 (environment)

Ex Redundant Power System · Juniperdevice

80%

All versions

Ex Rps · Juniperdevice

80%

All versions

Ex2200 · Juniperdevice

80%

All versions

Ex2200-C · Juniperdevice

80%

All versions