{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-20046", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2022-10-27T18:47:50.317Z", "datePublished": "2023-05-09T13:06:10.748Z", "dateUpdated": "2024-08-02T08:57:35.853Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-01-25T16:57:38.039Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability in the key-based SSH authentication feature of Cisco StarOS Software could allow an authenticated, remote attacker to elevate privileges on an affected device.\r\n\r This vulnerability is due to insufficient validation of user-supplied credentials. An attacker could exploit this vulnerability by sending a valid low-privileged SSH key to an affected device from a host that has an IP address that is configured as the source for a high-privileged user account. A successful exploit could allow the attacker to log in to the affected device through SSH as a high-privileged user.\r\n\r There are workarounds that address this vulnerability."}], "affected": [{"vendor": "Cisco", "product": "Cisco ASR 5000 Series Software", "versions": [{"version": "21.11.0", "status": "affected"}, {"version": "21.11.1", "status": "affected"}, {"version": "21.11.2", "status": "affected"}, {"version": "21.11.3", "status": "affected"}, {"version": "21.11.10", "status": "affected"}, {"version": "21.11.11", "status": "affected"}, {"version": "21.11.12", "status": "affected"}, {"version": "21.11.13", "status": "affected"}, {"version": "21.11.14", "status": "affected"}, {"version": "21.11.4", "status": "affected"}, {"version": "21.11.5", "status": "affected"}, {"version": "21.11.6", "status": "affected"}, {"version": "21.11.7", "status": "affected"}, {"version": "21.11.8", "status": "affected"}, {"version": "21.11.9", "status": "affected"}, {"version": "21.11.15", "status": "affected"}, {"version": "21.11.16", "status": "affected"}, {"version": "21.11.17", "status": "affected"}, {"version": "21.11.18", "status": "affected"}, {"version": "21.11.19", "status": "affected"}, {"version": "21.11.20", "status": "affected"}, {"version": "21.11.21", "status": "affected"}, {"version": "21.12.0", "status": "affected"}, {"version": "21.12.1", "status": "affected"}, {"version": "21.12.2", "status": "affected"}, {"version": "21.12.3", "status": "affected"}, {"version": "21.12.4", "status": "affected"}, {"version": "21.12.5", "status": "affected"}, {"version": "21.12.6", "status": "affected"}, {"version": "21.12.10", "status": "affected"}, {"version": "21.12.11", "status": "affected"}, {"version": "21.12.12", "status": "affected"}, {"version": "21.12.13", "status": "affected"}, {"version": "21.12.14", "status": "affected"}, {"version": "21.12.16", "status": "affected"}, {"version": "21.12.17", "status": "affected"}, {"version": "21.12.18", "status": 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"status": "affected"}, {"version": "21.28.2", "status": "affected"}, {"version": "21.28.m0", "status": "affected"}, {"version": "21.28.m1", "status": "affected"}, {"version": "21.28.m2", "status": "affected"}, {"version": "21.28.m3", "status": "affected"}]}, {"vendor": "Cisco", "product": "Cisco Ultra Cloud Core - User Plane Function", "versions": [{"version": "N/A", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Authentication Bypass by Alternate Name", "type": "cwe", "cweId": "CWE-289"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h", "name": "cisco-sa-staros-ssh-privesc-BmWeJC3h"}], "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}}], "exploits": [{"lang": "en", "value": "The Cisco PSIRT is aware that proof-of-concept exploit code is available for the vulnerability described in this advisory.\r\n\r\nThe Cisco PSIRT is not aware of any malicious use of the vulnerability that is described in this advisory."}], "source": {"advisory": "cisco-sa-staros-ssh-privesc-BmWeJC3h", "discovery": "EXTERNAL", "defects": ["CSCwd89468"]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:57:35.853Z"}, "title": "CVE Program Container", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h", "name": "cisco-sa-staros-ssh-privesc-BmWeJC3h", "tags": ["x_transferred"]}]}]}}

{}

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An attacker could exploit this vulnerability by sending a valid low-privileged SSH key to an affected device from a host that has an IP address that is configured as the source for a high-privileged user account. A successful exploit could allow the attacker to log in to the affected device through SSH as a high-privileged user.\r\n\r There are workarounds that address this vulnerability."}], "id": "CVE-2023-20046", "lastModified": "2024-11-21T07:40:25.733", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "ykramarz@cisco.com", "type": "Secondary"}, {"cvssData": {"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"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-05-09T18:15:11.697", "references": [{"source": "ykramarz@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h"}], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-289"}], "source": "ykramarz@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-522"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}