{"id":"CVE-2021-31999","state":"PUBLISHED","title":"Rancher: Privilege escalation vulnerability via malicious Connection header","description":"A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the \"Impersonate-User\" or \"Impersonate-Group\" headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16.","publishedAt":"2021-07-15T08:55:18.646Z","updatedAt":"2024-09-17T02:26:40.038Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"suse"},"assigner":"suse","products":["Rancher Rancher","Rancher SUSE Linux Enterprise Server 15"],"affected":[{"vendor":"Rancher","product":"Rancher","versions":[{"version":"Rancher","status":"affected","lessThan":"2.5.9","versionType":"custom"}]},{"vendor":"Rancher","product":"SUSE Linux Enterprise Server 15","versions":[{"version":"Rancher","status":"affected","lessThan":"2.4.16","versionType":"custom"}]}],"references":["https://bugzilla.suse.com/show_bug.cgi?id=1187084"],"weaknesses":["CWE-807"],"ingestedAt":"2026-10-29T19:48:30.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/31xxx/CVE-2021-31999.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-31999","state":"PUBLISHED","datePublished":"2021-07-15T08:55:18.646Z","dateUpdated":"2024-09-17T02:26:40.038Z","assignerShortName":"suse","assignerOrgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateReserved":"2021-05-03T00:00:00.000Z"},"containers":{"cna":{"title":"Rancher: Privilege escalation vulnerability via malicious Connection header","descriptions":[{"lang":"en","value":"A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the \"Impersonate-User\" or \"Impersonate-Group\" headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16."}],"affected":[{"vendor":"Rancher","product":"Rancher","versions":[{"version":"Rancher","status":"affected","lessThan":"2.5.9","versionType":"custom"}]},{"vendor":"Rancher","product":"SUSE Linux Enterprise Server 15","versions":[{"version":"Rancher","status":"affected","lessThan":"2.4.16","versionType":"custom"}]}],"references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1187084","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-807","description":"CWE-807: Reliance on Untrusted Inputs in a Security Decision","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"suse","dateUpdated":"2021-07-15T08:55:18.000Z","orgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb"},"datePublic":"2021-07-15T00:00:00.000Z","source":{"advisory":"https://bugzilla.suse.com/show_bug.cgi?id=1187084","defect":["1187084"],"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security@suse.com","DATE_PUBLIC":"2021-07-15T00:00:00.000Z","ID":"CVE-2021-31999","STATE":"PUBLIC","TITLE":"Rancher: Privilege escalation vulnerability via malicious Connection header"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Rancher","version":{"version_data":[{"version_affected":"<","version_name":"Rancher","version_value":"2.5.9"}]}},{"product_name":"SUSE Linux Enterprise Server 15","version":{"version_data":[{"version_affected":"<","version_name":"Rancher","version_value":"2.4.16"}]}}]},"vendor_name":"Rancher"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A Reliance on Untrusted Inputs in a Security Decision vulnerability in Rancher allows users in the cluster to act as others users in the cluster by forging the \"Impersonate-User\" or \"Impersonate-Group\" headers. This issue affects: Rancher versions prior to 2.5.9. Rancher versions prior to 2.4.16."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-807: Reliance on Untrusted Inputs in a Security Decision"}]}]},"references":{"reference_data":[{"name":"https://bugzilla.suse.com/show_bug.cgi?id=1187084","refsource":"CONFIRM","url":"https://bugzilla.suse.com/show_bug.cgi?id=1187084"}]},"source":{"advisory":"https://bugzilla.suse.com/show_bug.cgi?id=1187084","defect":["1187084"],"discovery":"INTERNAL"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://bugzilla.suse.com/show_bug.cgi?id=1187084","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T23:10:31.328Z"}}]}}}