{"id":"CVE-2021-0276","state":"PUBLISHED","title":"Steel-Belted Radius Carrier Edition: Remote code execution vulnerability when EAP Authentication is configured.","description":"A stack-based Buffer Overflow vulnerability in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured, allows an attacker sending specific packets causing the radius daemon to crash resulting with a Denial of Service (DoS) or leading to remote code execution (RCE). By continuously sending this specific packets, an attacker can repeatedly crash the radius daemon, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks SBR Carrier: 8.4.1 versions prior to 8.4.1R19; 8.5.0 versions prior to 8.5.0R10; 8.6.0 versions prior to 8.6.0R4.","publishedAt":"2021-07-15T20:00:45.706Z","updatedAt":"2024-09-16T19:00:01.867Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"juniper"},"assigner":"juniper","products":["Juniper Networks SBR Carrier"],"affected":[{"vendor":"Juniper Networks","product":"SBR Carrier","versions":[{"version":"8.4.1","status":"affected","lessThan":"8.4.1R19","versionType":"custom"},{"version":"8.5.0","status":"affected","lessThan":"8.5.0R10","versionType":"custom"},{"version":"8.6.0","status":"affected","lessThan":"8.6.0R4","versionType":"custom"}]}],"references":["https://kb.juniper.net/JSA11180"],"weaknesses":["CWE-121"],"ingestedAt":"2026-10-29T19:47:50.134Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/0xxx/CVE-2021-0276.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-0276","state":"PUBLISHED","datePublished":"2021-07-15T20:00:45.706Z","dateUpdated":"2024-09-16T19:00:01.867Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2020-10-27T00:00:00.000Z"},"containers":{"cna":{"title":"Steel-Belted Radius Carrier Edition: Remote code execution vulnerability when EAP Authentication is configured.","descriptions":[{"lang":"en","value":"A stack-based Buffer Overflow vulnerability in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured, allows an attacker sending specific packets causing the radius daemon to crash resulting with a Denial of Service (DoS) or leading to remote code execution (RCE). By continuously sending this specific packets, an attacker can repeatedly crash the radius daemon, causing a sustained Denial of Service (DoS). This issue affects Juniper Networks SBR Carrier: 8.4.1 versions prior to 8.4.1R19; 8.5.0 versions prior to 8.5.0R10; 8.6.0 versions prior to 8.6.0R4."}],"affected":[{"vendor":"Juniper Networks","product":"SBR Carrier","versions":[{"version":"8.4.1","status":"affected","lessThan":"8.4.1R19","versionType":"custom"},{"version":"8.5.0","status":"affected","lessThan":"8.5.0R10","versionType":"custom"},{"version":"8.6.0","status":"affected","lessThan":"8.6.0R4","versionType":"custom"}]}],"references":[{"url":"https://kb.juniper.net/JSA11180","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-121","description":"CWE-121 Stack-based Buffer Overflow","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"juniper","dateUpdated":"2021-07-15T20:00:45.000Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968"},"configurations":[{"lang":"en","value":"This issue affects SBR Carrier with EAP authentication configured only when using Enhanced EAP Logging and TraceLevel setting of 2.\n\n  <SBR_Installed_Directory>/JNPRsbr/radius/radius.ini\n  [Logging]\n  LogLevel=2\n  TraceLevel=2\n  EnhancedEAPLogging = yes"}],"datePublic":"2021-07-14T00:00:00.000Z","exploits":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"solutions":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 8.4.1R19, 8.5.0R10, 8.6.0R4 and all subsequent releases."}],"source":{"advisory":"JSA11180","defect":["1465201"],"discovery":"USER"},"workarounds":[{"lang":"en","value":"There are no viable workarounds for this issue."}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"sirt@juniper.net","DATE_PUBLIC":"2021-07-14T16:00:00.000Z","ID":"CVE-2021-0276","STATE":"PUBLIC","TITLE":"Steel-Belted Radius Carrier Edition: Remote code execution vulnerability when EAP Authentication is configured."},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"SBR Carrier","version":{"version_data":[{"version_affected":"<","version_name":"8.4.1","version_value":"8.4.1R19"},{"version_affected":"<","version_name":"8.5.0","version_value":"8.5.0R10"},{"version_affected":"<","version_name":"8.6.0","version_value":"8.6.0R4"}]}}]},"vendor_name":"Juniper Networks"}]}},"configuration":[{"lang":"en","value":"This issue affects SBR Carrier with EAP authentication configured only when using Enhanced EAP Logging and TraceLevel setting of 2.\n\n  <SBR_Installed_Directory>/JNPRsbr/radius/radius.ini\n  [Logging]\n  LogLevel=2\n  TraceLevel=2\n  EnhancedEAPLogging = yes"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A stack-based Buffer Overflow vulnerability in Juniper Networks SBR Carrier with EAP (Extensible Authentication Protocol) authentication configured, allows an attacker sending specific packets causing the radius daemon to crash resulting with a Denial of Service (DoS) or leading to remote code execution (RCE). By continuously sending this specific packets, an attacker can repeatedly crash the radius daemon, causing a sustained Denial of Service (DoS). 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