Junos OS Evolved: When a control-plane firewall filter refers to a prefix-list with more than 10 entries it's not matching
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS Evolved | unaffected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Juniper Networks | Junos Os Evolved | — |
Vendor Solution
The following software releases have been updated to resolve this specific issue: 23.2R2-S4-EVO, 23.4R2-S5-EVO, 24.2R2-S1-EVO, 24.4R1-S3-EVO, 24.4R2-EVO, 25.2R1-EVO, and all subsequent releases.
Vendor Workaround
A workaround for this issue is to refer to the prefix list either with the 'source-prefix-list' or the 'destination-prefix-list' match condition ('from').
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-21145 | A Use of Incorrect Operator vulnerability in the Routing Engine firewall of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to bypass security restrictions. When a firewall filter which is applied to the lo0 or re:mgmt interface references a prefix list with 'from prefix-list', and that prefix list contains more than 10 entries, the prefix list doesn't match and packets destined to or from the local device are not filtered. This issue affects firewall filters applied to the re:mgmt interfaces as input and output, but only affects firewall filters applied to the lo0 interface as output. This issue is applicable to IPv4 and IPv6 as a prefix list can contain IPv4 and IPv6 prefixes. This issue affects Junos OS Evolved: * 23.2R2-S3-EVO versions before 23.2R2-S4-EVO, * 23.4R2-S3-EVO versions before 23.4R2-S5-EVO, * 24.2R2-EVO versions before 24.2R2-S1-EVO, * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue doesn't affect Junos OS Evolved versions before 23.2R1-EVO. |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.298% probability within 30 days)
| Link | Providers |
|---|---|
| https://supportportal.juniper.net/JSA100091 |
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Juniper
Juniper junos Os Evolved |
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| CPEs | cpe:2.3:o:juniper:junos_os_evolved:23.2:r2-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s3:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:23.4:r2-s4:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.2:r2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.4:-:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.4:r1-s2:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.4:r1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:24.4:r2:*:*:*:*:*:* |
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| Vendors & Products |
Juniper
Juniper junos Os Evolved |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A Use of Incorrect Operator vulnerability in the Routing Engine firewall of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to bypass security restrictions. When a firewall filter which is applied to the lo0 or re:mgmt interface references a prefix list with 'from prefix-list', and that prefix list contains more than 10 entries, the prefix list doesn't match and packets destined to or from the local device are not filtered. This issue affects firewall filters applied to the re:mgmt interfaces as input and output, but only affects firewall filters applied to the lo0 interface as output. This issue is applicable to IPv4 and IPv6 as a prefix list can contain IPv4 and IPv6 prefixes. This issue affects Junos OS Evolved: * 23.2R2-S3-EVO versions before 23.2R2-S4-EVO, * 23.4R2-S3-EVO versions before 23.4R2-S5-EVO, * 24.2R2-EVO versions before 24.2R2-S1-EVO, * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue doesn't not affect Junos OS Evolved versions before 23.2R1-EVO. | A Use of Incorrect Operator vulnerability in the Routing Engine firewall of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to bypass security restrictions. When a firewall filter which is applied to the lo0 or re:mgmt interface references a prefix list with 'from prefix-list', and that prefix list contains more than 10 entries, the prefix list doesn't match and packets destined to or from the local device are not filtered. This issue affects firewall filters applied to the re:mgmt interfaces as input and output, but only affects firewall filters applied to the lo0 interface as output. This issue is applicable to IPv4 and IPv6 as a prefix list can contain IPv4 and IPv6 prefixes. This issue affects Junos OS Evolved: * 23.2R2-S3-EVO versions before 23.2R2-S4-EVO, * 23.4R2-S3-EVO versions before 23.4R2-S5-EVO, * 24.2R2-EVO versions before 24.2R2-S1-EVO, * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue doesn't affect Junos OS Evolved versions before 23.2R1-EVO. |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | A Use of Incorrect Operator vulnerability in the Routing Engine firewall of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to bypass security restrictions. When a firewall filter which is applied to the lo0 or re:mgmt interface references a prefix list with 'from prefix-list', and that prefix list contains more than 10 entries, the prefix list doesn't match and packets destined to or from the local device are not filtered. This issue affects firewall filters applied to the re:mgmt interfaces as input and output, but only affects firewall filters applied to the lo0 interface as output. This issue is applicable to IPv4 and IPv6 as a prefix list can contain IPv4 and IPv6 prefixes. This issue affects Junos OS Evolved: * 23.2R2-S3-EVO versions before 23.2R2-S4-EVO, * 23.4R2-S3-EVO versions before 23.4R2-S5-EVO, * 24.2R2-EVO versions before 24.2R2-S1-EVO, * 24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO. This issue doesn't not affect Junos OS Evolved versions before 23.2R1-EVO. | |
| Title | Junos OS Evolved: When a control-plane firewall filter refers to a prefix-list with more than 10 entries it's not matching | |
| Weaknesses | CWE-480 | |
| References |
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| Metrics |
cvssV3_1
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