{"id":"CVE-2024-39530","state":"PUBLISHED","title":"Junos OS: Attempting to access specific sensors on platforms not supporting these will lead to a chassisd crash","description":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis management daemon (chassisd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a \n\nDenial-of-Service (DoS).\n\nIf an attempt is made to access specific sensors on platforms not supporting these sensors, either via GRPC or netconf, chassisd will crash and restart leading to a restart of all FPCs and thereby a complete outage.\n\nThis issue affects Junos OS:\n\n\n\n  *  21.4 versions from 21.4R3 before 21.4R3-S5,\n  *  22.1 versions from 22.1R3 before 22.1R3-S4,\n  *  22.2 versions from 22.2R2 before 22.2R3,\n  *  22.3 versions from 22.3R1 before 22.3R2-S2, 22.3R3,\n  *  22.4 versions from 22.4R1 before 22.4R2.\n\n\nThis issue does not affect Junos OS versions earlier than 21.4.","publishedAt":"2024-07-11T16:04:13.075Z","updatedAt":"2024-08-02T04:26:15.620Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"21.4R3","status":"affected","lessThan":"21.4R3-S5","versionType":"semver"},{"version":"22.1R3","status":"affected","lessThan":"22.1R3-S4","versionType":"semver"},{"version":"22.2R2","status":"affected","lessThan":"22.2R3","versionType":"semver"},{"version":"22.3R1","status":"affected","lessThan":"22.3R2-S2, 22.3R3","versionType":"semver"},{"version":"22.4R1","status":"affected","lessThan":"22.4R2","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.4","versionType":"semver"}]}],"references":["https://supportportal.juniper.net/JSA82989"],"weaknesses":["CWE-754"],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/39xxx/CVE-2024-39530.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-39530","state":"PUBLISHED","datePublished":"2024-07-11T16:04:13.075Z","dateUpdated":"2024-08-02T04:26:15.620Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2024-06-25T15:12:53.240Z"},"containers":{"cna":{"title":"Junos OS: Attempting to access specific sensors on platforms not supporting these will lead to a chassisd crash","descriptions":[{"lang":"en","value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis management daemon (chassisd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a \n\nDenial-of-Service (DoS).\n\nIf an attempt is made to access specific sensors on platforms not supporting these sensors, either via GRPC or netconf, chassisd will crash and restart leading to a restart of all FPCs and thereby a complete outage.\n\nThis issue affects Junos OS:\n\n\n\n  *  21.4 versions from 21.4R3 before 21.4R3-S5,\n  *  22.1 versions from 22.1R3 before 22.1R3-S4,\n  *  22.2 versions from 22.2R2 before 22.2R3,\n  *  22.3 versions from 22.3R1 before 22.3R2-S2, 22.3R3,\n  *  22.4 versions from 22.4R1 before 22.4R2.\n\n\nThis issue does not affect Junos OS versions earlier than 21.4."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","defaultStatus":"unaffected","versions":[{"version":"21.4R3","status":"affected","lessThan":"21.4R3-S5","versionType":"semver"},{"version":"22.1R3","status":"affected","lessThan":"22.1R3-S4","versionType":"semver"},{"version":"22.2R2","status":"affected","lessThan":"22.2R3","versionType":"semver"},{"version":"22.3R1","status":"affected","lessThan":"22.3R2-S2, 22.3R3","versionType":"semver"},{"version":"22.4R1","status":"affected","lessThan":"22.4R2","versionType":"semver"},{"version":"0","status":"unaffected","lessThan":"21.4","versionType":"semver"}]}],"references":[{"url":"https://supportportal.juniper.net/JSA82989","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]},{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-754","description":"CWE-754 Improper Check for Unusual or Exceptional Conditions","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateUpdated":"2024-07-11T16:04:13.075Z"},"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"For this issue to be exploited over GRPC it needs to be configured as follows:<br><br><tt>[ system services extension-service request-response grpc ]</tt>"}],"value":"For this issue to be exploited over GRPC it needs to be configured as follows:\n\n[ system services extension-service request-response grpc ]"}],"datePublic":"2024-07-10T16:00:00.000Z","exploits":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue: 21.4R3-S5, 22.1R3-S4, 22.2R3, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases."}],"value":"The following software releases have been updated to resolve this specific issue: 21.4R3-S5, 22.1R3-S4, 22.2R3, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases."}],"source":{"advisory":"JSA82989","defect":["1708557"],"discovery":"INTERNAL"},"workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"There are no known workarounds for this issue."}],"value":"There are no known workarounds for this issue."}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"juniper","product":"junos_os","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"21.4","versionType":"semver"},{"version":"22.4r1","status":"affected","lessThan":"22.4r2","versionType":"semver"},{"version":"22.3r1","status":"affected","lessThan":"22.3r2-s2","versionType":"semver"},{"version":"22.3r1","status":"affected","lessThan":"22.3r3","versionType":"custom"},{"version":"22.2r2","status":"affected","lessThan":"22.2r3","versionType":"semver"},{"version":"22.1r3","status":"affected","lessThan":"22.1r3-s4","versionType":"semver"},{"version":"21.4r3","status":"affected","lessThan":"21.4r3-s5","versionType":"semver"}],"cpes":["cpe:2.3:o:juniper:junos_os:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-07-11T20:25:07.250062Z","id":"CVE-2024-39530","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-07-12T16:31:27.051Z"}},{"title":"CVE Program Container","references":[{"url":"https://supportportal.juniper.net/JSA82989","tags":["vendor-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T04:26:15.620Z"}}]}}}