CVE-2024-39533: Junos OS: QFX5000 Series and EX4600 Series: Output firewall filter is not applied if certain match criteria are used
First published: Thu Jul 11 2024(Updated: )
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.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper JUNOS | <21.2R3-S7<21.4R3-S6<22.1R3-S5<22.2R3-S3<22.3R3-S2<22.4R3<23.2R2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-39533?
CVE-2024-39533 is classified as a minor severity vulnerability affecting Juniper Networks Junos OS.
How do I fix CVE-2024-39533?
To address CVE-2024-39533, upgrade Junos OS to a version higher than 23.2R2, as listed in the affected software documentation.
Which versions of Junos OS are affected by CVE-2024-39533?
CVE-2024-39533 affects Junos OS versions up to 21.2R3-S7, 21.4R3-S6, 22.1R3-S5, 22.2R3-S3, 22.3R3-S2, 22.4R3, and 23.2R2.
What kind of impact can CVE-2024-39533 have?
CVE-2024-39533 can cause a minor integrity impact to downstream networks if exploited.
Who is affected by CVE-2024-39533?
Organizations using vulnerable versions of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series devices are affected by CVE-2024-39533.
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