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CVE-2022-22154

MEDIUMCVSS 6.8/10EPSS 0.24%

Last modified

CVE-2022-22154 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. In a Junos Fusion scenario an External Control of Critical State Data vulnerability in the Satellite Device (SD) control state machine of Juniper Networks Junos OS allows an attacker who is able to make physical changes to the cabling of the device to cause a denial of service (DoS). An SD can get rebooted and subsequently controlled by an Aggregation Device (AD) which does not belong to the original Fusion setup and is just connected to an extended port of the SD. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

In a Junos Fusion scenario an External Control of Critical State Data vulnerability in the Satellite Device (SD) control state machine of Juniper Networks Junos OS allows an attacker who is able to make physical changes to the cabling of the device to cause a denial of service (DoS). An SD can get rebooted and subsequently controlled by an Aggregation Device (AD) which does not belong to the original Fusion setup and is just connected to an extended port of the SD. To carry out this attack the attacker needs to have physical access to the cabling between the SD and the original AD. This issue affects: Juniper Networks Junos OS 16.1R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4. This issue does not affect Juniper Networks Junos OS versions prior to 16.1R1.

Metrics

CVSS 3.1
6.8/10

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

EPSS Probability
0.24%

15.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
JuniperJunos16.1R1
JuniperJunos16.1x65—
JuniperJunos16.1x70—
JuniperJunos16.2—
JuniperJunos17.1—
JuniperJunos17.2—
JuniperJunos17.2x75—
JuniperJunos17.3—
JuniperJunos17.4—
JuniperJunos18.1—
JuniperJunos18.1x75—
JuniperJunos18.2—
JuniperJunos18.2x75—
JuniperJunos18.2x75-d10—
JuniperJunos18.2x75-d30—
JuniperJunos18.3—
JuniperJunos18.4—
JuniperJunos19.1—
JuniperJunos19.2—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-22154?
In a Junos Fusion scenario an External Control of Critical State Data vulnerability in the Satellite Device (SD) control state machine of Juniper Networks Junos OS allows an attacker who is able to make physical changes to the cabling of the device to cause a denial of service (DoS). An SD can get rebooted and subsequently controlled by an Aggregation Device (AD) which does not belong to the original Fusion setup and is just connected to an extended port of the SD. To carry out this attack the attacker needs to have physical access to the cabling between the SD and the original AD. This issue affects: Juniper Networks Junos OS 16.1R1 and later versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4. This issue does not affect Juniper Networks Junos OS versions prior to 16.1R1.
How severe is CVE-2022-22154?
CVE-2022-22154 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2022-22154?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-22154?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST