{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2023-20168", "ASSIGNER": "psirt@cisco.com", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability in TACACS+ and RADIUS remote authentication for Cisco NX-OS Software could allow an unauthenticated, local attacker to cause an affected device to unexpectedly reload. This vulnerability is due to incorrect input validation when processing an authentication attempt if the directed request option is enabled for TACACS+ or RADIUS. An attacker could exploit this vulnerability by entering a crafted string at the login prompt of an affected device. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a denial of service (DoS) condition. " } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "cweId": "CWE-120" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Cisco", "product": { "product_data": [ { "product_name": "Cisco NX-OS Software", "version": { "version_data": [ { "version_affected": "=", "version_value": "4.2(1)SV1(4)" }, { "version_affected": "=", "version_value": "4.2(1)SV1(4a)" }, { "version_affected": "=", "version_value": "4.2(1)SV1(4b)" }, { "version_affected": "=", "version_value": "4.2(1)SV1(5.1)" }, { "version_affected": "=", "version_value": "4.2(1)SV1(5.1a)" }, { "version_affected": "=", "version_value": "4.2(1)SV1(5.2)" }, { "version_affected": "=", "version_value": "4.2(1)SV1(5.2b)" }, { "version_affected": "=", "version_value": "4.2(1)SV2(1.1)" }, { "version_affected": "=", "version_value": "4.2(1)SV2(1.1a)" }, { "version_affected": "=", "version_value": 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"version_affected": "=", "version_value": "8.2(2)" }, { "version_affected": "=", "version_value": "8.2(3)" }, { "version_affected": "=", "version_value": "8.2(4)" }, { "version_affected": "=", "version_value": "8.2(5)" }, { "version_affected": "=", "version_value": "8.2(6)" }, { "version_affected": "=", "version_value": "8.2(7)" }, { "version_affected": "=", "version_value": "8.2(7a)" }, { "version_affected": "=", "version_value": "8.2(8)" }, { "version_affected": "=", "version_value": "8.2(9)" }, { "version_affected": "=", "version_value": "8.3(1)" }, { "version_affected": "=", "version_value": "8.3(2)" }, { "version_affected": "=", "version_value": "9.2(1)" }, { "version_affected": "=", "version_value": "9.2(2)" }, { "version_affected": "=", "version_value": "9.2(2t)" }, { "version_affected": "=", "version_value": "9.2(3)" }, { "version_affected": "=", "version_value": "9.2(4)" }, { "version_affected": "=", "version_value": "9.2(2v)" }, { "version_affected": "=", "version_value": "9.2(1a)" }, { "version_affected": "=", "version_value": "7.3(4)N1(1)" }, { "version_affected": "=", "version_value": "7.3(3)D1(1)" }, { "version_affected": "=", "version_value": "7.3(4)D1(1)" }, { "version_affected": "=", "version_value": "7.3(5)N1(1)" }, { "version_affected": "=", "version_value": "5.2(1)SK3(1.1)" }, { "version_affected": "=", "version_value": "5.2(1)SK3(2.1)" }, { "version_affected": "=", "version_value": "5.2(1)SK3(2.2)" }, { "version_affected": "=", "version_value": "5.2(1)SK3(2.2b)" }, { "version_affected": "=", "version_value": "5.2(1)SK3(2.1a)" }, { "version_affected": "=", "version_value": "5.2(1)SV5(1.1)" }, { "version_affected": "=", "version_value": "5.2(1)SV5(1.2)" }, { "version_affected": "=", "version_value": "5.2(1)SV5(1.3)" }, { "version_affected": "=", "version_value": "5.2(1)SV5(1.3a)" }, { "version_affected": "=", "version_value": "5.2(1)SV5(1.3b)" }, { "version_affected": "=", "version_value": "5.2(1)SV5(1.3c)" }, { "version_affected": "=", "version_value": "8.4(1)" }, { "version_affected": "=", "version_value": "8.4(1a)" }, { "version_affected": "=", "version_value": "8.4(2)" }, { "version_affected": "=", "version_value": "8.4(2a)" }, { "version_affected": "=", "version_value": "8.4(3)" }, { "version_affected": "=", "version_value": "8.4(2b)" }, { "version_affected": "=", "version_value": "8.4(4)" }, { "version_affected": "=", "version_value": "8.4(2c)" }, { "version_affected": "=", "version_value": "8.4(4a)" }, { "version_affected": "=", "version_value": "8.4(5)" }, { "version_affected": "=", "version_value": "8.4(2d)" }, { "version_affected": "=", "version_value": "8.4(6)" }, { "version_affected": "=", "version_value": "8.4(2e)" }, { "version_affected": "=", "version_value": "8.4(6a)" }, { "version_affected": "=", "version_value": "8.4(7)" }, { "version_affected": "=", "version_value": "8.4(2f)" }, { "version_affected": "=", "version_value": "9.3(1)" }, { "version_affected": "=", "version_value": "9.3(2)" }, { "version_affected": "=", "version_value": "9.3(3)" }, { "version_affected": "=", "version_value": "9.3(4)" }, { "version_affected": "=", "version_value": "9.3(5)" }, { "version_affected": "=", "version_value": "9.3(6)" }, { "version_affected": "=", "version_value": "9.3(7)" }, { "version_affected": "=", "version_value": "9.3(7a)" }, { "version_affected": "=", "version_value": "9.3(8)" }, { "version_affected": "=", "version_value": "9.3(9)" }, { "version_affected": "=", "version_value": "9.3(10)" }, { "version_affected": "=", "version_value": "9.3(11)" }, { "version_affected": "=", "version_value": "7.3(6)N1(1)" }, { "version_affected": "=", "version_value": "7.3(5)D1(1)" }, { "version_affected": "=", "version_value": "7.3(7)N1(1)" }, { "version_affected": "=", "version_value": "7.3(7)N1(1a)" }, { "version_affected": "=", "version_value": "7.3(7)N1(1b)" }, { "version_affected": "=", "version_value": "7.3(6)D1(1)" }, { "version_affected": "=", "version_value": "7.3(8)N1(1)" }, { "version_affected": "=", "version_value": "7.3(7)D1(1)" }, { "version_affected": "=", "version_value": "7.3(9)N1(1)" }, { "version_affected": "=", "version_value": "10.1(1)" }, { "version_affected": "=", "version_value": "10.1(2)" }, { "version_affected": "=", "version_value": "10.1(2t)" }, { "version_affected": "=", "version_value": "8.5(1)" }, { "version_affected": "=", "version_value": "7.3(10)N1(1)" }, { "version_affected": "=", "version_value": "7.3(8)D1(1)" }, { "version_affected": "=", "version_value": "10.2(1)" }, { "version_affected": "=", "version_value": "10.2(1q)" }, { "version_affected": "=", "version_value": "10.2(2)" }, { "version_affected": "=", "version_value": "10.2(3)" }, { "version_affected": "=", "version_value": "10.2(3t)" }, { "version_affected": "=", "version_value": "10.2(4)" }, { "version_affected": "=", "version_value": "10.2(5)" }, { "version_affected": "=", "version_value": "7.3(9)D1(1)" }, { "version_affected": "=", "version_value": "7.3(11)N1(1)" }, { "version_affected": "=", "version_value": "7.3(12)N1(1)" }, { "version_affected": "=", "version_value": "10.3(1)" }, { "version_affected": "=", "version_value": "10.3(2)" }, { "version_affected": "=", "version_value": "7.3(13)N1(1)" } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-remoteauth-dos-XB6pv74m", "refsource": "MISC", "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-remoteauth-dos-XB6pv74m" } ] }, "source": { "advisory": "cisco-sa-nxos-remoteauth-dos-XB6pv74m", "discovery": "EXTERNAL", "defects": [ "CSCwe72368", "CSCwe72670", "CSCwe72648", "CSCwe72673", "CSCwe72674" ] }, "exploit": [ { "lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory." } ], "impact": { "cvss": [ { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "baseScore": 7.1, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" } ] } }