Juniper Networks Junos OS up to 23.2R1 on QFX5000/EX4600 UI unsupported feature in ui

Summaryinfo

A vulnerability classified as problematic was found in Juniper Networks Junos OS up to 23.2R1 on QFX5000/EX4600. Impacted is an unknown function of the component UI. Such manipulation leads to unsupported feature in ui. This vulnerability is documented as CVE-2024-39533. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Juniper Networks Junos OS up to 23.2R1 on QFX5000/EX4600 and classified as problematic. Affected by this issue is an unknown function of the component UI. The manipulation with an unknown input leads to a unsupported feature in ui vulnerability. Using CWE to declare the problem leads to CWE-447. A UI function for a security feature appears to be supported and gives feedback to the user that suggests that it is supported, but the underlying functionality is not implemented. Impacted is integrity. CVE summarizes:

An Unimplemented or Unsupported Feature in the UI vulnerability in Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an unauthenticated, network-based attacker to cause a minor integrity impact to downstream networks.If one or more of the following match conditions ip-source-address ip-destination-address arp-type which are not supported for this type of filter, are used in an ethernet switching filter, and then this filter is applied as an output filter, the configuration can be committed but the filter will not be in effect. This issue affects Junos OS on QFX5000 Series and EX4600 Series: * All version before 21.2R3-S7,  * 21.4 versions before 21.4R3-S6, * 22.1 versions before 22.1R3-S5, * 22.2 versions before 22.2R3-S3, * 22.3 versions before 22.3R3-S2,  * 22.4 versions before 22.4R3, * 23.2 versions before 23.2R2. Please note that the implemented fix ensures these unsupported match conditions cannot be committed anymore.

The advisory is available at supportportal.juniper.net. This vulnerability is handled as CVE-2024-39533 since 06/25/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/23/2026).

Upgrading to version 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3 or 23.2R2 eliminates this vulnerability.

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Productinfo

Type

• Router Operating System

Vendor

• Juniper Networks

Name

• Junos OS

Version

• 21.2R3-S6
• 21.4R3-S5
• 22.1R3-S4
• 22.2R3-S2
• 22.3R3-S1
• 22.4R2
• 23.2R1

License

• commercial

CPE 2.3info

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CPE 2.2info

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