{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2023-20198", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2022-10-27T18:47:50.365Z", "datePublished": "2023-10-16T15:12:58.735Z", "dateUpdated": "2025-10-21T23:05:34.401Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-01-25T16:57:55.900Z" }, "descriptions": [ { "lang": "en", "value": "Cisco is providing an update for the ongoing investigation into observed exploitation of the web UI feature in Cisco IOS XE Software. We are updating the list of fixed releases and adding the Software Checker. Our investigation has determined that the actors exploited two previously unknown issues. The attacker first exploited CVE-2023-20198 to gain initial access and issued a privilege 15 command to create a local user and password combination. This allowed the user to log in with normal user access. The attacker then exploited another component of the web UI feature, leveraging the new local user to elevate privilege to root and write the implant to the file system. Cisco has assigned CVE-2023-20273 to this issue. CVE-2023-20198 has been assigned a CVSS Score of 10.0. CVE-2023-20273 has been assigned a CVSS Score of 7.2. Both of these CVEs are being tracked by CSCwh87343." } ], "affected": [ { "vendor": "Cisco", "product": "Cisco IOS XE Software", "versions": [ { "version": "16.1.1", "status": "affected" }, { "version": "16.1.2", "status": "affected" }, { "version": "16.1.3", "status": "affected" }, { "version": "16.2.1", "status": "affected" }, { "version": "16.2.2", "status": "affected" }, { "version": "16.3.1", "status": "affected" }, { "version": "16.3.2", "status": "affected" }, { "version": "16.3.3", "status": "affected" }, { "version": "16.3.1a", "status": "affected" }, { "version": "16.3.4", "status": "affected" }, { "version": "16.3.5", "status": "affected" }, { "version": "16.3.5b", "status": "affected" }, { "version": "16.3.6", "status": "affected" }, { "version": "16.3.7", "status": "affected" }, { "version": "16.3.8", "status": "affected" }, { "version": "16.3.9", "status": "affected" }, { "version": "16.3.10", "status": "affected" }, { "version": "16.3.11", "status": "affected" }, { "version": "16.4.1", "status": "affected" }, { "version": "16.4.2", "status": "affected" }, { "version": "16.4.3", "status": "affected" }, { "version": "16.5.1", "status": "affected" }, { "version": "16.5.1a", "status": "affected" }, { "version": "16.5.1b", "status": "affected" }, { "version": "16.5.2", "status": "affected" }, { "version": "16.5.3", "status": "affected" }, { "version": "16.6.1", "status": "affected" }, { "version": "16.6.2", "status": "affected" }, { "version": "16.6.3", "status": "affected" }, { "version": "16.6.4", "status": "affected" }, { "version": "16.6.5", "status": "affected" }, { "version": "16.6.4a", "status": "affected" }, { "version": "16.6.5a", "status": "affected" }, { "version": "16.6.6", "status": "affected" }, { "version": "16.6.7", "status": "affected" }, { "version": "16.6.8", "status": "affected" }, { "version": "16.6.9", "status": "affected" }, { "version": "16.6.10", "status": "affected" }, { "version": "16.7.1", "status": "affected" }, { "version": "16.7.1a", "status": "affected" }, { "version": "16.7.1b", "status": "affected" }, { "version": "16.7.2", "status": "affected" }, { "version": "16.7.3", "status": "affected" }, { "version": "16.7.4", "status": "affected" }, { "version": "16.8.1", "status": "affected" }, { "version": "16.8.1a", "status": "affected" }, { "version": "16.8.1b", "status": "affected" }, { "version": "16.8.1s", "status": "affected" }, { "version": "16.8.1c", "status": "affected" }, { "version": "16.8.1d", "status": "affected" }, { "version": "16.8.2", "status": "affected" }, { "version": "16.8.1e", "status": "affected" }, { "version": "16.8.3", "status": "affected" }, { "version": "16.9.1", "status": "affected" }, { "version": "16.9.2", "status": "affected" }, { "version": "16.9.1a", "status": "affected" }, { "version": "16.9.1b", "status": "affected" }, { "version": "16.9.1s", "status": "affected" }, { "version": "16.9.3", "status": "affected" }, { "version": "16.9.4", "status": "affected" }, { "version": "16.9.3a", "status": "affected" }, { "version": "16.9.5", "status": "affected" }, { "version": "16.9.5f", "status": "affected" }, { "version": "16.9.6", "status": "affected" }, { "version": "16.9.7", "status": "affected" }, { "version": "16.9.8", "status": "affected" }, { "version": "16.10.1", "status": "affected" }, { "version": "16.10.1a", "status": "affected" }, { "version": "16.10.1b", "status": "affected" }, { "version": "16.10.1s", "status": "affected" }, { "version": "16.10.1c", "status": "affected" }, { "version": "16.10.1e", "status": "affected" }, { "version": "16.10.1d", "status": "affected" }, { "version": "16.10.2", "status": "affected" }, { "version": "16.10.1f", "status": "affected" }, { "version": "16.10.1g", "status": "affected" }, { "version": "16.10.3", "status": "affected" }, { "version": "16.11.1", "status": "affected" }, { "version": "16.11.1a", "status": "affected" }, { "version": "16.11.1b", "status": "affected" }, { "version": "16.11.2", "status": "affected" }, { "version": "16.11.1s", "status": "affected" }, { "version": "16.12.1", "status": "affected" }, { "version": "16.12.1s", "status": "affected" }, { "version": "16.12.1a", "status": "affected" }, { "version": "16.12.1c", "status": "affected" }, { "version": "16.12.1w", "status": "affected" }, { "version": "16.12.2", "status": "affected" }, { "version": "16.12.1y", "status": "affected" }, { "version": "16.12.2a", "status": "affected" }, { "version": "16.12.3", "status": "affected" }, { "version": "16.12.8", "status": "affected" }, { "version": "16.12.2s", "status": "affected" }, { "version": "16.12.1x", "status": "affected" }, { "version": "16.12.1t", "status": "affected" }, { "version": "16.12.4", "status": "affected" }, { "version": "16.12.3s", "status": "affected" }, { "version": "16.12.3a", "status": "affected" }, { "version": "16.12.4a", "status": "affected" }, { "version": "16.12.5", "status": "affected" }, { "version": "16.12.6", "status": "affected" }, { "version": "16.12.1z1", "status": "affected" }, { "version": "16.12.5a", "status": "affected" }, { "version": "16.12.5b", "status": "affected" }, { "version": "16.12.1z2", "status": "affected" }, { "version": "16.12.6a", "status": "affected" }, { "version": "16.12.7", "status": "affected" }, { "version": "16.12.9", "status": "affected" }, { "version": "16.12.10", "status": "affected" }, { "version": "17.1.1", "status": "affected" }, { "version": "17.1.1a", "status": "affected" }, { "version": "17.1.1s", "status": "affected" }, { "version": "17.1.1t", "status": "affected" }, { "version": "17.1.3", "status": "affected" }, { "version": "17.2.1", "status": "affected" }, { "version": "17.2.1r", "status": "affected" }, { "version": "17.2.1a", "status": "affected" }, { "version": "17.2.1v", "status": "affected" }, { "version": "17.2.2", "status": "affected" }, { "version": "17.2.3", "status": "affected" }, { "version": "17.3.1", "status": "affected" }, { "version": "17.3.2", "status": "affected" }, { "version": "17.3.3", "status": "affected" }, { "version": "17.3.1a", "status": "affected" }, { "version": "17.3.1w", "status": "affected" }, { "version": "17.3.2a", "status": "affected" }, { "version": "17.3.1x", "status": "affected" }, { "version": "17.3.1z", "status": "affected" }, { "version": "17.3.4", "status": "affected" }, { "version": "17.3.5", "status": "affected" }, { "version": "17.3.4a", "status": "affected" }, { "version": "17.3.6", "status": "affected" }, { "version": "17.3.4b", "status": "affected" }, { "version": "17.3.4c", "status": "affected" }, { "version": "17.3.5a", "status": "affected" }, { "version": "17.3.5b", "status": "affected" }, { "version": "17.3.7", "status": "affected" }, { "version": "17.3.8", "status": "affected" }, { "version": "17.4.1", "status": "affected" }, { "version": "17.4.2", "status": "affected" }, { "version": "17.4.1a", "status": "affected" }, { "version": "17.4.1b", "status": "affected" }, { "version": "17.4.2a", "status": "affected" }, { "version": "17.5.1", "status": "affected" }, { "version": "17.5.1a", "status": "affected" }, { "version": "17.5.1b", "status": "affected" }, { "version": "17.5.1c", "status": "affected" }, { "version": "17.6.1", "status": "affected" }, { "version": "17.6.2", "status": "affected" }, { "version": "17.6.1w", "status": "affected" }, { "version": "17.6.1a", "status": "affected" }, { "version": "17.6.1x", "status": "affected" }, { "version": "17.6.3", "status": "affected" }, { "version": "17.6.1y", "status": "affected" }, { "version": "17.6.1z", "status": "affected" }, { "version": "17.6.3a", "status": "affected" }, { "version": "17.6.4", "status": "affected" }, { "version": "17.6.1z1", "status": "affected" }, { "version": "17.6.5", "status": "affected" }, { "version": "17.6.6", "status": "affected" }, { "version": "17.7.1", "status": "affected" }, { "version": "17.7.1a", "status": "affected" }, { "version": "17.7.1b", "status": "affected" }, { "version": "17.7.2", "status": "affected" }, { "version": "17.10.1", "status": "affected" }, { "version": "17.10.1a", "status": "affected" }, { "version": "17.10.1b", "status": "affected" }, { "version": "17.8.1", "status": "affected" }, { "version": "17.8.1a", "status": "affected" }, { "version": "17.9.1", "status": "affected" }, { "version": "17.9.1w", "status": "affected" }, { "version": "17.9.2", "status": "affected" }, { "version": "17.9.1a", "status": "affected" }, { "version": "17.9.1x", "status": "affected" }, { "version": "17.9.1y", "status": "affected" }, { "version": "17.9.3", "status": "affected" }, { "version": "17.9.2a", "status": "affected" }, { "version": "17.9.1x1", "status": "affected" }, { "version": "17.9.3a", "status": "affected" }, { "version": "17.9.4", "status": "affected" }, { "version": "17.9.1y1", "status": "affected" }, { "version": "17.11.1", "status": "affected" }, { "version": "17.11.1a", "status": "affected" }, { "version": "17.12.1", "status": "affected" }, { "version": "17.12.1a", "status": "affected" }, { "version": "17.11.99SW", "status": "affected" } ] } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Unprotected Alternate Channel", "type": "cwe", "cweId": "CWE-420" } ] } ], "references": [ { "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z", "name": "cisco-sa-iosxe-webui-privesc-j22SaA4z" } ], "metrics": [ { "format": "cvssV3_1", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 10, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" } } ], "exploits": [ { "lang": "en", "value": "Cisco is aware of active exploitation of these vulnerabilities." } ], "source": { "advisory": "cisco-sa-iosxe-webui-privesc-j22SaA4z", "discovery": "EXTERNAL", "defects": [ "CSCwh87343" ] } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T09:05:35.915Z" }, "title": "CVE Program Container", "references": [ { "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z", "name": "cisco-sa-iosxe-webui-privesc-j22SaA4z", "tags": [ "x_transferred" ] } ] }, { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2023-20198", "role": "CISA Coordinator", "options": [ { "Exploitation": "active" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2024-10-23T18:58:11.982740Z" } } }, { "other": { "type": "kev", "content": { "dateAdded": "2023-10-16", "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20198" } } } ], "references": [ { "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-20198", "tags": [ "government-resource" ] } ], "timeline": [ { "time": "2023-10-16T00:00:00.000Z", "lang": "en", "value": "CVE-2023-20198 added to CISA KEV" } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-21T23:05:34.401Z" } } ] } }