{"id":"CVE-2023-44195","state":"PUBLISHED","title":"Junos OS Evolved: Packets which are not destined to the router can reach the RE","description":"\nAn Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the NetworkStack agent daemon (nsagentd) of Juniper Networks Junos OS Evolved allows an unauthenticated network based attacker to cause limited impact to the availability of the system.\n\nIf specific packets reach the Routing-Engine (RE) these will be processed normally even if firewall filters are in place which should have prevented this. This can lead to a limited, increased consumption of resources resulting in a Denial-of-Service (DoS), and unauthorized access.\n\nCVE-2023-44196 is a prerequisite for this issue.\n\nThis issue affects Juniper Networks Junos OS Evolved:\n\n\n\n  *  21.3-EVO versions prior to 21.3R3-S5-EVO;\n  *  21.4-EVO versions prior to 21.4R3-S4-EVO;\n  *  22.1-EVO version 22.1R1-EVO and later;\n  *  22.2-EVO version 22.2R1-EVO and later;\n  *  22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\n  *  22.4-EVO versions prior to 22.4R3-EVO.\n\n\n\n\nThis issue doesn't not affected Junos OS Evolved versions prior to 21.3R1-EVO.\n\n\n\n","publishedAt":"2023-10-12T23:04:32.068Z","updatedAt":"2024-09-17T16:10:16.450Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS Evolved"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"unaffected","lessThan":"21.3R1-EVO","versionType":"semver"},{"version":"21.3-EVO","status":"affected","lessThan":"21.3R3-S5-EVO","versionType":"semver"},{"version":"21.4-EVO","status":"affected","lessThan":"21.4R3-S4-EVO","versionType":"semver"},{"version":"22.1R1-EVO","status":"affected","lessThan":"22.1*-EVO","versionType":"semver"},{"version":"22.2R1-EVO","status":"affected","lessThan":"22.2*-EVO","versionType":"semver"},{"version":"22.3-EVO","status":"affected","lessThan":"22.3R2-S2-EVO, 22.3R3-S1-EVO","versionType":"semver"},{"version":"22.4-EVO","status":"affected","lessThan":"22.4R3-EVO","versionType":"semver"}]}],"references":["https://supportportal.juniper.net/JSA73160"],"weaknesses":["CWE-923"],"ingestedAt":"2026-10-29T20:06:17.512Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/44xxx/CVE-2023-44195.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-44195","state":"PUBLISHED","datePublished":"2023-10-12T23:04:32.068Z","dateUpdated":"2024-09-17T16:10:16.450Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2023-09-26T19:30:32.349Z"},"containers":{"cna":{"title":"Junos OS Evolved: Packets which are not destined to the router can reach the RE","descriptions":[{"lang":"en","value":"\nAn Improper Restriction of Communication Channel to Intended Endpoints vulnerability in the NetworkStack agent daemon (nsagentd) of Juniper Networks Junos OS Evolved allows an unauthenticated network based attacker to cause limited impact to the availability of the system.\n\nIf specific packets reach the Routing-Engine (RE) these will be processed normally even if firewall filters are in place which should have prevented this. This can lead to a limited, increased consumption of resources resulting in a Denial-of-Service (DoS), and unauthorized access.\n\nCVE-2023-44196 is a prerequisite for this issue.\n\nThis issue affects Juniper Networks Junos OS Evolved:\n\n\n\n  *  21.3-EVO versions prior to 21.3R3-S5-EVO;\n  *  21.4-EVO versions prior to 21.4R3-S4-EVO;\n  *  22.1-EVO version 22.1R1-EVO and later;\n  *  22.2-EVO version 22.2R1-EVO and later;\n  *  22.3-EVO versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\n  *  22.4-EVO versions prior to 22.4R3-EVO.\n\n\n\n\nThis issue doesn't not affected Junos OS Evolved versions prior to 21.3R1-EVO.\n\n\n\n"}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS Evolved","defaultStatus":"unaffected","versions":[{"version":"0","status":"unaffected","lessThan":"21.3R1-EVO","versionType":"semver"},{"version":"21.3-EVO","status":"affected","lessThan":"21.3R3-S5-EVO","versionType":"semver"},{"version":"21.4-EVO","status":"affected","lessThan":"21.4R3-S4-EVO","versionType":"semver"},{"version":"22.1R1-EVO","status":"affected","lessThan":"22.1*-EVO","versionType":"semver"},{"version":"22.2R1-EVO","status":"affected","lessThan":"22.2*-EVO","versionType":"semver"},{"version":"22.3-EVO","status":"affected","lessThan":"22.3R2-S2-EVO, 22.3R3-S1-EVO","versionType":"semver"},{"version":"22.4-EVO","status":"affected","lessThan":"22.4R3-EVO","versionType":"semver"}]}],"references":[{"url":"https://supportportal.juniper.net/JSA73160","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-923","description":"CWE-923 Improper Restriction of Communication Channel to Intended Endpoints","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2023-10-12T23:04:32.068Z"},"datePublic":"2023-10-11T16:00:00.000Z","exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Juniper SIRT is not aware of any malicious exploitation of this vulnerability.</p>"}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n\n"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>The following software releases have been updated to resolve this specific issue: Junos OS Evolved 21.3R3-S5-EVO, 21.4R3-S4-EVO, 22.3R2-S2-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.</p>"}],"value":"The following software releases have been updated to resolve this specific issue: Junos OS Evolved 21.3R3-S5-EVO, 21.4R3-S4-EVO, 22.3R2-S2-EVO, 22.3R3-S1-EVO, 22.4R3-EVO, 23.2R1-EVO, and all subsequent releases.\n\n"}],"source":{"advisory":"JSA73160","defect":["1713989"],"discovery":"USER"},"timeline":[{"lang":"en","time":"2023-10-11T16:00:00.000Z","value":"Initial Publication"}],"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>There are no known workarounds for this issue.</p>"}],"value":"There are no known workarounds for this issue.\n\n"}],"x_generator":{"engine":"Vulnogram 0.1.0-av217"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://supportportal.juniper.net/JSA73160","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T19:59:51.561Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-17T15:53:20.306753Z","id":"CVE-2023-44195","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-09-17T16:10:16.450Z"}}]}}}