{"id":"CVE-2018-0057","state":"PUBLISHED","title":"Junos OS: authd allows assignment of IP address requested by DHCP subscriber logging in with Option 50 (Requested IP Address)","description":"On MX Series and M120/M320 platforms configured in a Broadband Edge (BBE) environment, subscribers logging in with DHCP Option 50 to request a specific IP address will be assigned the requested IP address, even if there is a static MAC to IP address binding in the access profile. In the problem scenario, with a hardware-address and IP address configured under address-assignment pool, if a subscriber logging in with DHCP Option 50, the subscriber will not be assigned an available address from the matched pool, but will still get the requested IP address. A malicious DHCP subscriber may be able to utilize this vulnerability to create duplicate IP address assignments, leading to a denial of service for valid subscribers or unauthorized information disclosure via IP address assignment spoofing. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S2, 15.1R8; 16.1 versions prior to 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S9, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 versions prior to 17.3R2-S4, 17.3R3; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R2-S3, 18.1R3.","publishedAt":"2018-10-10T18:00:00.000Z","updatedAt":"2024-09-17T02:10:54.305Z","severity":{"score":6.1,"label":"Medium","version":"3.0","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L","source":"juniper"},"assigner":"juniper","products":["Juniper Networks Junos OS"],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","versions":[{"version":"15.1","status":"affected","lessThan":"15.1R7-S2, 15.1R8","versionType":"custom"},{"version":"16.1","status":"affected","lessThan":"16.1R4-S12, 16.1R7-S2, 16.1R8","versionType":"custom"},{"version":"16.2","status":"affected","lessThan":"16.2R2-S7, 16.2R3","versionType":"custom"},{"version":"17.1","status":"affected","lessThan":"17.1R2-S9, 17.1R3","versionType":"custom"},{"version":"17.2","status":"affected","lessThan":"17.2R1-S7, 17.2R2-S6, 17.2R3","versionType":"custom"},{"version":"17.3","status":"affected","lessThan":"17.3R2-S4, 17.3R3","versionType":"custom"},{"version":"17.4","status":"affected","lessThan":"17.4R2","versionType":"custom"},{"version":"18.1","status":"affected","lessThan":"18.1R2-S3, 18.1R3","versionType":"custom"}]}],"references":["https://kb.juniper.net/JSA10892"],"weaknesses":[],"ingestedAt":"2026-10-29T19:44:03.729Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2018/0xxx/CVE-2018-0057.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2018-0057","state":"PUBLISHED","datePublished":"2018-10-10T18:00:00.000Z","dateUpdated":"2024-09-17T02:10:54.305Z","assignerShortName":"juniper","assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","dateReserved":"2017-11-16T00:00:00.000Z"},"containers":{"cna":{"title":"Junos OS: authd allows assignment of IP address requested by DHCP subscriber logging in with Option 50 (Requested IP Address)","descriptions":[{"lang":"en","value":"On MX Series and M120/M320 platforms configured in a Broadband Edge (BBE) environment, subscribers logging in with DHCP Option 50 to request a specific IP address will be assigned the requested IP address, even if there is a static MAC to IP address binding in the access profile. In the problem scenario, with a hardware-address and IP address configured under address-assignment pool, if a subscriber logging in with DHCP Option 50, the subscriber will not be assigned an available address from the matched pool, but will still get the requested IP address. A malicious DHCP subscriber may be able to utilize this vulnerability to create duplicate IP address assignments, leading to a denial of service for valid subscribers or unauthorized information disclosure via IP address assignment spoofing. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S2, 15.1R8; 16.1 versions prior to 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S9, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 versions prior to 17.3R2-S4, 17.3R3; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R2-S3, 18.1R3."}],"affected":[{"vendor":"Juniper Networks","product":"Junos OS","versions":[{"version":"15.1","status":"affected","lessThan":"15.1R7-S2, 15.1R8","versionType":"custom"},{"version":"16.1","status":"affected","lessThan":"16.1R4-S12, 16.1R7-S2, 16.1R8","versionType":"custom"},{"version":"16.2","status":"affected","lessThan":"16.2R2-S7, 16.2R3","versionType":"custom"},{"version":"17.1","status":"affected","lessThan":"17.1R2-S9, 17.1R3","versionType":"custom"},{"version":"17.2","status":"affected","lessThan":"17.2R1-S7, 17.2R2-S6, 17.2R3","versionType":"custom"},{"version":"17.3","status":"affected","lessThan":"17.3R2-S4, 17.3R3","versionType":"custom"},{"version":"17.4","status":"affected","lessThan":"17.4R2","versionType":"custom"},{"version":"18.1","status":"affected","lessThan":"18.1R2-S3, 18.1R3","versionType":"custom"}]}],"references":[{"url":"https://kb.juniper.net/JSA10892","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_0":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"LOW","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L","version":"3.0"}}],"problemTypes":[{"descriptions":[{"description":"Information disclosure","lang":"en","type":"text"}]},{"descriptions":[{"description":"Denial of service","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"juniper","dateUpdated":"2018-10-10T17:57:01.000Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968"},"datePublic":"2018-10-10T00:00:00.000Z","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: 15.1R7-S2, 15.1R8, 16.1R4-S12, 16.1R7-S2, 16.1R8, 16.2R2-S7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R1-S7, 17.2R2-S6, 17.2R3, 17.3R2-S4, 17.3R3, 17.4R2, 18.1R2-S3, 18.1R3, 18.2R1, 18.3R1, and all subsequent releases."}],"source":{"advisory":"JSA10892","defect":["1351334"],"discovery":"USER"},"workarounds":[{"lang":"en","value":"There are no viable workarounds for this issue"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"sirt@juniper.net","DATE_PUBLIC":"2018-10-10T16:00:00.000Z","ID":"CVE-2018-0057","STATE":"PUBLIC","TITLE":"Junos OS: authd allows assignment of IP address requested by DHCP subscriber logging in with Option 50 (Requested IP Address)"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Junos OS","version":{"version_data":[{"affected":"<","version_affected":"<","version_name":"15.1","version_value":"15.1R7-S2, 15.1R8"},{"affected":"<","version_affected":"<","version_name":"16.1","version_value":"16.1R4-S12, 16.1R7-S2, 16.1R8"},{"affected":"<","version_affected":"<","version_name":"16.2","version_value":"16.2R2-S7, 16.2R3"},{"affected":"<","version_affected":"<","version_name":"17.1","version_value":"17.1R2-S9, 17.1R3"},{"affected":"<","version_affected":"<","version_name":"17.2","version_value":"17.2R1-S7, 17.2R2-S6, 17.2R3"},{"affected":"<","version_affected":"<","version_name":"17.3","version_value":"17.3R2-S4, 17.3R3"},{"affected":"<","version_affected":"<","version_name":"17.4","version_value":"17.4R2"},{"affected":"<","version_affected":"<","version_name":"18.1","version_value":"18.1R2-S3, 18.1R3"}]}}]},"vendor_name":"Juniper Networks"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"On MX Series and M120/M320 platforms configured in a Broadband Edge (BBE) environment, subscribers logging in with DHCP Option 50 to request a specific IP address will be assigned the requested IP address, even if there is a static MAC to IP address binding in the access profile. In the problem scenario, with a hardware-address and IP address configured under address-assignment pool, if a subscriber logging in with DHCP Option 50, the subscriber will not be assigned an available address from the matched pool, but will still get the requested IP address. A malicious DHCP subscriber may be able to utilize this vulnerability to create duplicate IP address assignments, leading to a denial of service for valid subscribers or unauthorized information disclosure via IP address assignment spoofing. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S2, 15.1R8; 16.1 versions prior to 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S9, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 versions prior to 17.3R2-S4, 17.3R3; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R2-S3, 18.1R3."}]},"exploit":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"LOW","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L","version":"3.0"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"Information disclosure"}]},{"description":[{"lang":"eng","value":"Denial of service"}]}]},"references":{"reference_data":[{"name":"https://kb.juniper.net/JSA10892","refsource":"CONFIRM","url":"https://kb.juniper.net/JSA10892"}]},"solution":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 15.1R7-S2, 15.1R8, 16.1R4-S12, 16.1R7-S2, 16.1R8, 16.2R2-S7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R1-S7, 17.2R2-S6, 17.2R3, 17.3R2-S4, 17.3R3, 17.4R2, 18.1R2-S3, 18.1R3, 18.2R1, 18.3R1, and all subsequent releases."}],"source":{"advisory":"JSA10892","defect":["1351334"],"discovery":"USER"},"work_around":[{"lang":"en","value":"There are no viable workarounds for this issue"}]}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://kb.juniper.net/JSA10892","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T03:14:16.658Z"}}]}}}