CVE-2025-52985 (GCVE-0-2025-52985)

Vulnerability from cvelistv5 – Published: 2025-07-11 15:09 – Updated: 2025-07-18 07:16
VLAI?
Title
Junos OS Evolved: When a control-plane firewall filter refers to a prefix-list with more than 10 entries it's not matching
Summary
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.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-480 - Use of Incorrect Operator
Assigner
References
Impacted products
Vendor Product Version
Juniper Networks Junos OS Evolved Affected: 23.2R2-S3-EVO , < 23.2R2-S4-EVO (semver)
Affected: 23.4R2-S3-EVO , < 23.4R2-S5-EVO (semver)
Affected: 24.2R2-EVO , < 24.2R2-S1-EVO (semver)
Affected: 24.4-EVO , < 24.4R1-S3-EVO, 24.4R2-EVO (semver)
Create a notification for this product.
Date Public ?
2025-07-09 16:00
Show details on NVD website
To clipboard 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-52985\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-07-11T16:04:44.130312Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-07-11T16:04:45.469Z\"}}], \"cna\": {\"title\": \"Junos OS Evolved: When a control-plane firewall filter refers to a prefix-list with more than 10 entries it\u0027s not matching\", \"source\": {\"defect\": [\"1866334\"], \"advisory\": \"JSA100091\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}, {\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 6.9, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"LOW\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Juniper Networks\", \"product\": \"Junos OS Evolved\", \"versions\": [{\"status\": \"affected\", \"version\": \"23.2R2-S3-EVO\", \"lessThan\": \"23.2R2-S4-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"23.4R2-S3-EVO\", \"lessThan\": \"23.4R2-S5-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.2R2-EVO\", \"lessThan\": \"24.2R2-S1-EVO\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"24.4-EVO\", \"lessThan\": \"24.4R1-S3-EVO, 24.4R2-EVO\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\", \"base64\": false}]}], \"solutions\": [{\"lang\": \"en\", \"value\": \"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.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"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.\", \"base64\": false}]}], \"datePublic\": \"2025-07-09T16:00:00.000Z\", \"references\": [{\"url\": \"https://supportportal.juniper.net/JSA100091\", \"tags\": [\"vendor-advisory\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"A workaround for this issue is to refer to the prefix list either with\\u00a0the \u0027source-prefix-list\u0027 or the \u0027destination-prefix-list\u0027 match condition (\u0027from\u0027).\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A workaround for this issue is to refer to the prefix list either with\u0026nbsp;the \u0027source-prefix-list\u0027 or the \u0027destination-prefix-list\u0027 match condition (\u0027from\u0027).\", \"base64\": false}]}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A Use of Incorrect Operator\\n\\nvulnerability in the Routing Engine firewall of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to bypass security restrictions.\\n\\nWhen a firewall filter which is applied to the lo0 or re:mgmt interface references a prefix list with \u0027from prefix-list\u0027, and that prefix list contains more than 10 entries, the prefix list doesn\u0027t match and packets destined to or from the local device are not filtered.\\n\\n\\nThis 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.\\nThis issue is applicable to IPv4 and IPv6 as a prefix list can contain IPv4 and IPv6 prefixes.\\nThis issue affects Junos OS Evolved:\\n\\n  *  23.2R2-S3-EVO versions before 23.2R2-S4-EVO,\\n  *  23.4R2-S3-EVO versions before 23.4R2-S5-EVO,\\n  *  24.2R2-EVO versions before 24.2R2-S1-EVO,\\n  *  24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\\n\\n\\nThis issue doesn\u0027t affect Junos OS Evolved versions before 23.2R1-EVO.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A Use of Incorrect Operator\\n\\nvulnerability in the Routing Engine firewall of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to bypass security restrictions.\u003cbr\u003e\u003cbr\u003eWhen a firewall filter which is applied to the lo0 or re:mgmt interface references a prefix list with \u0027from prefix-list\u0027, and that prefix list contains more than 10 entries, the prefix list doesn\u0027t match and packets destined to or from the local device are not filtered.\u003cbr\u003e\\n\\n\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003eThis 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.\u003c/span\u003e\u003cbr\u003eThis issue is applicable to IPv4 and IPv6 as a prefix list can contain IPv4 and IPv6 prefixes.\u003cbr\u003e\u003cp\u003eThis issue affects Junos OS Evolved:\u003c/p\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e\u003cul\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e23.2R2-S3-EVO versions before 23.2R2-S4-EVO,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e23.4R2-S3-EVO versions before 23.4R2-S5-EVO,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e24.2R2-EVO versions before 24.2R2-S1-EVO,\u003c/span\u003e\u003c/li\u003e\u003cli\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e24.4-EVO versions before 24.4R1-S3-EVO, 24.4R2-EVO.\u003c/span\u003e\u003c/li\u003e\u003c/ul\u003e\u003c/span\u003eThis issue doesn\u0027t affect Junos OS Evolved versions before 23.2R1-EVO.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-480\", \"description\": \"CWE-480 Use of Incorrect Operator\"}]}], \"configurations\": [{\"lang\": \"en\", \"value\": \"A system will only be affected by this vulnerability if like in the following example a\\n\\nfirewall filter applied to the lo0 or re:mgmt interface references a prefix list with the \u0027from prefix-list\u0027 clause, and that prefix list contains more than 10 entries:\\n\\n[ policy-options prefix-list \u003cprefix-list name\u003e \u003cprefix1\u003e ]\\n...\\n\\n\\n[ policy-options prefix-list \u003cprefix-list name\u003e\\n\\n\u003cprefix11\u003e ]\\n...\\n[ firewall family \u003cinet/inet6\u003e filter \u003cfilter name\u003e term \u003cterm name\u003e from prefix-list \\n\\n\u003cprefix-list name\u003e\\n\\n ]\\n[ interfaces \u003clo0 unit \u003cunit\u003e / re:mgmt\u003c0/1\u003e unit \\n\\n\u003cunit\u003e\u003e family \u003cinet/inet6\u003e filter \u003cinput/output\u003e \\n\\n\u003cfilter name\u003e\\n\\n ]\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A system will only be affected by this vulnerability if like in the following example a\\n\\nfirewall filter applied to the lo0 or re:mgmt interface references a prefix list with the \u0027from prefix-list\u0027 clause, and that prefix list contains more than 10 entries:\u003cbr\u003e\u003cbr\u003e\u003ctt\u003e[ policy-options prefix-list \u0026lt;prefix-list name\u0026gt; \u0026lt;prefix1\u0026gt; ]\u003cbr\u003e...\u003cbr\u003e\\n\\n[ policy-options prefix-list \u0026lt;prefix-list name\u0026gt;\\n\\n\u0026lt;prefix11\u0026gt; ]\u003cbr\u003e...\u003cbr\u003e[ firewall family \u0026lt;inet/inet6\u0026gt; filter \u0026lt;filter name\u0026gt; term \u0026lt;term name\u0026gt; from prefix-list \\n\\n\u0026lt;prefix-list name\u0026gt;\\n\\n ]\u003cbr\u003e\u003cspan style=\\\"background-color: rgb(255, 255, 255);\\\"\u003e[ interfaces \u0026lt;lo0 unit \u0026lt;unit\u0026gt; / re:mgmt\u0026lt;0/1\u0026gt; unit \\n\\n\u0026lt;unit\u0026gt;\u0026gt; family \u0026lt;inet/inet6\u0026gt; filter \u0026lt;input/output\u0026gt; \\n\\n\u0026lt;filter name\u0026gt;\\n\\n ]\u003c/span\u003e\u003c/tt\u003e\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"shortName\": \"juniper\", \"dateUpdated\": \"2025-07-18T07:16:09.464Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-52985\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-07-18T07:16:09.464Z\", \"dateReserved\": \"2025-06-23T18:23:44.546Z\", \"assignerOrgId\": \"8cbe9d5a-a066-4c94-8978-4b15efeae968\", \"datePublished\": \"2025-07-11T15:09:58.361Z\", \"assignerShortName\": \"juniper\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.