CVE-2024-39533CWE-447

Junos OS: QFX5000 Series and EX4600 Series: Output firewall filter is not applied if certain match criteria are used

Medium · published July 11, 2024

CVSS v4.0
6.9
EPSS
0%
Percentile
21.9
In the wild
Unconfirmed
What it is

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 record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N
EPSS
0.00296 · 21.9th percentile
Weakness
CWE-447 · Unimplemented or Unsupported Feature in UI
Published
2024-07-11T16:08Z
EPSS history
Timeline
  • 11 JUL 16:08Z
    Junos OS: QFX5000 Series and EX4600 Series: Output firewall filter is not applied if certain match criteria are used
    cvelistv5