{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-39561","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","state":"PUBLISHED","assignerShortName":"juniper","dateReserved":"2024-06-25T15:12:53.248Z","datePublished":"2024-07-10T22:46:34.024Z","dateUpdated":"2024-08-02T04:26:15.914Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["SRX4600","SRX5000 Series"],"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"21.2R3-S8","status":"affected","version":"0","versionType":"semver"},{"lessThan":"21.4R3-S7","status":"affected","version":"21.4","versionType":"semver"},{"lessThan":"22.1R3-S6","status":"affected","version":"22.1","versionType":"semver"},{"lessThan":"22.2R3-S4","status":"affected","version":"22.2","versionType":"semver"},{"lessThan":"22.3R3-S3","status":"affected","version":"22.3","versionType":"semver"},{"lessThan":"22.4R3-S2","status":"affected","version":"22.4","versionType":"semver"},{"lessThan":"23.2R2","status":"affected","version":"23.2","versionType":"semver"},{"lessThan":"23.4R1-S1, 23.4R2","status":"affected","version":"23.4","versionType":"semver"}]}],"configurations":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"This issue only affects systems with both no-syn-check and Express Path enabled:

[set security flow tcp-session no-syn-check]

[set security forwarding-options services-offload enable]
(This can also be enabled per security policy)

Note: Automated Express Path is enabled by default starting with Junos OS 21.2R1."}],"value":"This issue only affects systems with both no-syn-check and Express Path enabled:\n\n[set security flow tcp-session no-syn-check]\n\n[set security forwarding-options services-offload enable]\n(This can also be enabled per security policy)\n\nNote: Automated Express Path is enabled by default starting with Junos OS 21.2R1."}],"datePublic":"2024-07-10T16:00:00.000Z","descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"
\n
An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon (flowd) of Juniper Networks Junos OS on \n\nSRX4600 and SRX5000 Series\n\n allows an attacker to send TCP packets with \n\nSYN/FIN or SYN/RST\n\n flags, bypassing the expected blocking of these packets.

A TCP packet with SYN/FIN or SYN/RST should be dropped in flowd. However, when no-syn-check and Express Path are enabled, these TCP packets are unexpectedly transferred to the downstream network.

This issue affects Junos OS on SRX4600 and SRX5000 Series:



"}],"value":"An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow daemon (flowd) of Juniper Networks Junos OS on \n\nSRX4600 and SRX5000 Series\n\n allows an attacker to send TCP packets with \n\nSYN/FIN or SYN/RST\n\n flags, bypassing the expected blocking of these packets.\n\nA TCP packet with SYN/FIN or SYN/RST should be dropped in flowd. However, when no-syn-check and Express Path are enabled, these TCP packets are unexpectedly transferred to the downstream network.\n\nThis issue affects Junos OS on SRX4600 and SRX5000 Series: \n\n\n * All versions before 21.2R3-S8, \n * from 21.4 before 21.4R3-S7, \n * from 22.1 before 22.1R3-S6, \n * from 22.2 before 22.2R3-S4, \n * from 22.3 before 22.3R3-S3, \n * from 22.4 before 22.4R3-S2, \n * from 23.2 before 23.2R2, \n * from 23.4 before 23.4R1-S1, 23.4R2."}],"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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","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":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","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":{"orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper","dateUpdated":"2024-07-11T15:35:11.923Z"},"references":[{"tags":["vendor-advisory"],"url":"https://supportportal.juniper.net/JSA83021"}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The following software releases have been updated to resolve this specific issue: 21.2R3-S8, 21.4R3-S7, 22.1R3-S6, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2, 23.4R1-S1, 23.4R2, 24.2R1, and all subsequent releases."}],"value":"The following software releases have been updated to resolve this specific issue: 21.2R3-S8, 21.4R3-S7, 22.1R3-S6, 22.2R3-S4, 22.3R3-S3, 22.4R3-S2, 23.2R2, 23.4R1-S1, 23.4R2, 24.2R1, and all subsequent releases."}],"source":{"advisory":"JSA83021","defect":["1776940"],"discovery":"USER"},"title":"Junos OS: SRX4600, SRX5000 Series: TCP packets with SYN/FIN or SYN/RST are transferred after enabling no-syn-check with Express Path","workarounds":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"This issue can be mitigated by disabling Express Path:

[set security forwarding-options services-offload disable]
"}],"value":"This issue can be mitigated by disabling Express Path:\n\n[set security forwarding-options services-offload disable]"}],"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"affected":[{"vendor":"juniper","product":"junos","cpes":["cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"21.2r3-s8","versionType":"custom"}]},{"vendor":"juniper","product":"junos","cpes":["cpe:2.3:o:juniper:junos:21.4:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","versions":[{"version":"21.4","status":"affected","lessThan":"21.4r3-s7","versionType":"custom"}]},{"vendor":"juniper","product":"junos","cpes":["cpe:2.3:o:juniper:junos:22.2:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","versions":[{"version":"22.2","status":"affected","lessThan":"22.2r3-s4","versionType":"custom"}]},{"vendor":"juniper","product":"junos","cpes":["cpe:2.3:o:juniper:junos:22.3:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","versions":[{"version":"22.3","status":"affected","lessThan":"22.3r3-s3","versionType":"custom"}]},{"vendor":"juniper","product":"junos","cpes":["cpe:2.3:o:juniper:junos:22.4:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","versions":[{"version":"22.4","status":"affected","lessThan":"22.4r3-s2","versionType":"custom"}]},{"vendor":"juniper","product":"junos","cpes":["cpe:2.3:o:juniper:junos:23.2:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","versions":[{"version":"23.2","status":"affected","lessThan":"23.2r2","versionType":"custom"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-07-11T13:23:34.650518Z","id":"CVE-2024-39561","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-07-11T13:35:23.147Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T04:26:15.914Z"},"title":"CVE Program Container","references":[{"tags":["vendor-advisory","x_transferred"],"url":"https://supportportal.juniper.net/JSA83021"}]}]}}