gsd-2023-20046
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
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.
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.
There are workarounds that address this vulnerability.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2023-20046", "id": "GSD-2023-20046" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2023-20046" ], "details": "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.", "id": "GSD-2023-20046", "modified": "2023-12-13T01:20:29.232345Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "ID": "CVE-2023-20046", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco ASR 5000 Series Software", "version": { "version_data": [ { "version_affected": "=", "version_value": "21.11.0" }, { "version_affected": "=", "version_value": "21.11.1" }, { "version_affected": "=", "version_value": "21.11.2" }, { "version_affected": "=", "version_value": "21.11.3" }, { "version_affected": "=", "version_value": "21.11.10" }, { "version_affected": "=", "version_value": "21.11.11" }, { "version_affected": "=", "version_value": "21.11.12" }, { "version_affected": "=", "version_value": "21.11.13" }, { "version_affected": "=", "version_value": "21.11.14" }, { "version_affected": "=", "version_value": "21.11.4" }, { "version_affected": "=", "version_value": "21.11.5" }, { "version_affected": "=", "version_value": "21.11.6" }, { "version_affected": "=", "version_value": "21.11.7" }, { "version_affected": "=", "version_value": "21.11.8" }, { "version_affected": "=", "version_value": "21.11.9" }, { "version_affected": "=", "version_value": "21.11.15" }, { "version_affected": "=", "version_value": "21.11.16" }, { "version_affected": "=", "version_value": "21.11.17" }, { "version_affected": "=", "version_value": "21.11.18" }, { "version_affected": "=", "version_value": "21.11.19" }, { "version_affected": "=", "version_value": "21.11.20" }, { "version_affected": "=", "version_value": "21.11.21" }, { "version_affected": "=", "version_value": "21.12.0" }, { "version_affected": "=", "version_value": "21.12.1" }, { "version_affected": "=", "version_value": 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}, { "version_affected": "=", "version_value": "21.14.b22" }, { "version_affected": "=", "version_value": "21.14.23" }, { "version_affected": "=", "version_value": "21.15.0" }, { "version_affected": "=", "version_value": "21.15.1" }, { "version_affected": "=", "version_value": "21.15.10" }, { "version_affected": "=", "version_value": "21.15.11" }, { "version_affected": "=", "version_value": "21.15.12" }, { "version_affected": "=", "version_value": "21.15.13" }, { "version_affected": "=", "version_value": "21.15.14" }, { "version_affected": "=", "version_value": "21.15.15" }, { "version_affected": "=", "version_value": "21.15.16" }, { "version_affected": "=", "version_value": "21.15.17" }, { "version_affected": "=", "version_value": "21.15.18" }, { "version_affected": "=", "version_value": "21.15.19" }, { "version_affected": "=", "version_value": "21.15.2" }, { "version_affected": "=", "version_value": "21.15.20" }, { "version_affected": "=", "version_value": "21.15.21" }, { 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"version_affected": "=", "version_value": "21.15.60" }, { "version_affected": "=", "version_value": "21.16.2" }, { "version_affected": "=", "version_value": "21.16.3" }, { "version_affected": "=", "version_value": "21.16.4" }, { "version_affected": "=", "version_value": "21.16.5" }, { "version_affected": "=", "version_value": "21.16.c10" }, { "version_affected": "=", "version_value": "21.16.c11" }, { "version_affected": "=", "version_value": "21.16.c12" }, { "version_affected": "=", "version_value": "21.16.c13" }, { "version_affected": "=", "version_value": "21.16.c9" }, { "version_affected": "=", "version_value": "21.16.d0" }, { "version_affected": "=", "version_value": "21.16.d1" }, { "version_affected": "=", "version_value": "21.16.6" }, { "version_affected": "=", "version_value": "21.16.c14" }, { "version_affected": "=", "version_value": "21.16.7" }, { "version_affected": "=", "version_value": "21.16.c15" }, { "version_affected": "=", "version_value": "21.16.8" }, { 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{ "version_affected": "=", "version_value": "21.20.32" }, { "version_affected": "=", "version_value": "21.20.33" }, { "version_affected": "=", "version_value": "21.20.34" }, { "version_affected": "=", "version_value": "21.20.35" }, { "version_affected": "=", "version_value": "21.20.27" }, { "version_affected": "=", "version_value": "21.20.SV2" }, { "version_affected": "=", "version_value": "21.21.0" }, { "version_affected": "=", "version_value": "21.21.1" }, { "version_affected": "=", "version_value": "21.21.2" }, { "version_affected": "=", "version_value": "21.21.3" }, { "version_affected": "=", "version_value": "21.21.KS2" }, { "version_affected": "=", "version_value": "21.22.0" }, { "version_affected": "=", "version_value": "21.22.n2" }, { "version_affected": "=", "version_value": "21.22.n3" }, { "version_affected": "=", "version_value": "21.22.3" }, { "version_affected": "=", "version_value": "21.22.4" }, { "version_affected": "=", "version_value": "21.22.5" }, { "version_affected": "=", "version_value": "21.22.uj3" }, { "version_affected": "=", "version_value": "21.22.11" }, { "version_affected": "=", "version_value": "21.22.6" }, { "version_affected": "=", "version_value": "21.22.7" }, { "version_affected": "=", "version_value": "21.22.8" }, { "version_affected": "=", "version_value": "21.22.n4" }, { "version_affected": "=", "version_value": "21.22.n5" }, { "version_affected": "=", "version_value": "21.22.ua0" }, { "version_affected": "=", "version_value": "21.22.ua2" }, { "version_affected": "=", "version_value": "21.22.ua3" }, { "version_affected": "=", "version_value": "21.22.ua5" }, { "version_affected": "=", "version_value": "21.22.12" }, { "version_affected": "=", "version_value": "21.22.13" }, { "version_affected": "=", "version_value": "21.22.n10" }, { "version_affected": "=", "version_value": "21.22.n11" }, { "version_affected": "=", "version_value": "21.22.n12" }, { "version_affected": "=", "version_value": "21.22.n6" }, { "version_affected": "=", "version_value": "21.22.n7" }, { "version_affected": "=", "version_value": "21.22.n8" }, { "version_affected": "=", "version_value": "21.22.n9" }, { "version_affected": "=", "version_value": "21.22.n13" }, { "version_affected": "=", "version_value": "21.23.0" }, { "version_affected": "=", "version_value": "21.23.1" }, { "version_affected": "=", "version_value": "21.23.10" }, { "version_affected": "=", "version_value": "21.23.11" }, { "version_affected": "=", "version_value": "21.23.12" }, { "version_affected": "=", "version_value": "21.23.13" }, { "version_affected": "=", "version_value": "21.23.14" }, { "version_affected": "=", "version_value": "21.23.15" }, { "version_affected": "=", "version_value": "21.23.16" }, { "version_affected": "=", "version_value": "21.23.17" }, { "version_affected": "=", "version_value": "21.23.2" }, { "version_affected": "=", "version_value": "21.23.3" }, { "version_affected": "=", "version_value": "21.23.4" }, { "version_affected": "=", "version_value": "21.23.5" }, { "version_affected": "=", "version_value": "21.23.6" }, { "version_affected": "=", "version_value": "21.23.7" }, { "version_affected": "=", "version_value": "21.23.8" }, { "version_affected": "=", "version_value": "21.23.9" }, { "version_affected": "=", "version_value": "21.23.b2" }, { "version_affected": "=", "version_value": "21.23.b3" }, { "version_affected": "=", "version_value": "21.23.c16" }, { "version_affected": "=", "version_value": "21.23.c17" }, { "version_affected": "=", "version_value": "21.23.n6" }, { "version_affected": "=", "version_value": "21.23.n7" }, { "version_affected": "=", "version_value": "21.23.n9" }, { "version_affected": "=", "version_value": "21.23.18" }, { "version_affected": "=", "version_value": "21.23.19" }, { "version_affected": "=", "version_value": "21.23.21" }, { "version_affected": "=", "version_value": "21.23.22" }, { "version_affected": "=", "version_value": "21.23.23" }, { "version_affected": "=", "version_value": "21.23.24" }, { "version_affected": "=", "version_value": "21.23.25" }, { "version_affected": "=", "version_value": "21.23.26" }, { "version_affected": "=", "version_value": "21.23.27" }, { "version_affected": "=", "version_value": "21.23.29" }, { "version_affected": "=", "version_value": "21.23.30" }, { "version_affected": "=", "version_value": "21.23.c18" }, { "version_affected": "=", "version_value": "21.23.n10" }, { "version_affected": "=", "version_value": "21.23.n11" }, { "version_affected": "=", "version_value": "21.23.n8" }, { "version_affected": "=", "version_value": "21.23.yn14" }, { "version_affected": "=", "version_value": "21.24.0" }, { "version_affected": "=", "version_value": "21.24.1" }, { "version_affected": "=", "version_value": "21.24.2" }, { "version_affected": "=", "version_value": "21.24.3" }, { "version_affected": "=", "version_value": "21.25.0" }, { "version_affected": "=", "version_value": "21.25.3" }, { "version_affected": "=", "version_value": "21.25.4" }, { "version_affected": "=", "version_value": "21.25.5" }, { "version_affected": "=", "version_value": "21.25.10" }, { "version_affected": "=", "version_value": "21.25.11" }, { "version_affected": "=", "version_value": "21.25.12" }, { "version_affected": "=", "version_value": "21.25.13" }, { "version_affected": "=", "version_value": "21.25.14" }, { "version_affected": "=", "version_value": "21.25.6" }, { "version_affected": "=", "version_value": "21.25.7" }, { "version_affected": "=", "version_value": "21.25.8" }, { "version_affected": "=", "version_value": "21.25.9" }, { "version_affected": "=", "version_value": "21.26.0" }, { "version_affected": "=", "version_value": "21.26.1" }, { "version_affected": "=", "version_value": "21.26.10" }, { "version_affected": "=", "version_value": "21.26.13" }, { "version_affected": "=", "version_value": "21.26.14" }, { "version_affected": "=", "version_value": "21.26.15" }, { "version_affected": "=", "version_value": "21.26.3" }, { "version_affected": "=", "version_value": "21.26.5" }, { "version_affected": "=", "version_value": "21.26.6" }, { "version_affected": "=", "version_value": "21.26.7" }, { "version_affected": "=", "version_value": "21.26.17" }, { "version_affected": "=", "version_value": "21.27.0" }, { "version_affected": "=", "version_value": "21.27.1" }, { "version_affected": "=", "version_value": "21.27.2" }, { "version_affected": "=", "version_value": "21.27.3" }, { "version_affected": "=", "version_value": "21.27.4" }, { "version_affected": "=", "version_value": "21.27.5" }, { "version_affected": "=", "version_value": "21.27.m0" }, { "version_affected": "=", "version_value": "21.28.0" }, { "version_affected": "=", "version_value": "21.28.1" }, { "version_affected": "=", "version_value": "21.28.2" }, { "version_affected": "=", "version_value": "21.28.m0" }, { "version_affected": "=", "version_value": "21.28.m1" }, { "version_affected": "=", "version_value": "21.28.m2" }, { "version_affected": "=", "version_value": "21.28.m3" } ] } }, { "product_name": "Cisco Ultra Cloud Core - User Plane Function", "version": { "version_data": [ { "version_affected": "=", "version_value": "N/A" } ] } } ] }, "vendor_name": "Cisco" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "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." } ] }, "exploit": [ { "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." } ], "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": [ { "cweId": "CWE-289", "lang": "eng", "value": "Authentication Bypass by Alternate Name" } ] } ] }, "references": { "reference_data": [ { "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h", "refsource": "MISC", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h" } ] }, "source": { "advisory": "cisco-sa-staros-ssh-privesc-BmWeJC3h", "defects": [ "CSCwd89468" ], "discovery": "EXTERNAL" } }, "nvd.nist.gov": { "cve": { "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*", "matchCriteriaId": "1280E939-FA8A-49E4-AE06-616B152929CF", "versionEndExcluding": "21.22.14", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*", "matchCriteriaId": "5A2C7A63-E17A-487D-8CCF-3346FDA2859F", "versionEndExcluding": "21.23.31", "versionStartIncluding": "21.23.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*", "matchCriteriaId": "1B58A574-77D9-4EC5-9D57-8D244EF7BDB8", "versionEndExcluding": "21.25.15", "versionStartIncluding": "21.25.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*", "matchCriteriaId": "E9507CCB-0340-40D6-AAF3-D2EA3D3EE408", "versionEndExcluding": "21.26.17", "versionStartIncluding": "21.26.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*", "matchCriteriaId": "0D9F9D50-DA13-410A-9571-6FA9436165E8", "versionEndExcluding": "21.27.6", "versionStartIncluding": "21.27.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:*:*:*:*:*:*:*:*", "matchCriteriaId": "833F9A52-2976-4F2C-AA87-FD50BB83BB3D", "versionEndExcluding": "21.28.3", "versionStartIncluding": "21.28.0", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:21.23.n:*:*:*:*:*:*:*", "matchCriteriaId": "CD63EE8D-0389-4589-BF86-0F64A8AEDA13", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:21.24:*:*:*:*:*:*:*", "matchCriteriaId": "A0534E44-1CD6-49CB-A574-D7B2CF14CC25", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:21.27.m:*:*:*:*:*:*:*", "matchCriteriaId": "CC1BBD53-BF16-4841-9D20-D2C4129A337B", "vulnerable": true }, { "criteria": "cpe:2.3:o:cisco:staros:21.28.m:*:*:*:*:*:*:*", "matchCriteriaId": "47DCE4FD-48D4-4B25-BBAE-24D270627FCD", "vulnerable": true } ], "negate": false, "operator": "OR" }, { "cpeMatch": [ { "criteria": "cpe:2.3:h:cisco:asr_5000:-:*:*:*:*:*:*:*", "matchCriteriaId": "746254AC-B039-432C-AA5C-A82260E57AD7", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:asr_5500:-:*:*:*:*:*:*:*", "matchCriteriaId": "301681DF-2A9E-4A91-9918-4A46153ADC01", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:asr_5700:-:*:*:*:*:*:*:*", "matchCriteriaId": "A9EF0299-16A7-446D-855D-BFF91EE65534", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:vpc-di:-:*:*:*:*:*:*:*", "matchCriteriaId": "775B2FC4-E182-47F8-B786-EC6A359BCCE3", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:vpc-si:-:*:*:*:*:*:*:*", "matchCriteriaId": "DFD5A5BE-9B00-4E4F-A4A4-FBEF990F4C39", "vulnerable": false } ], "negate": false, "operator": "OR" } ], "operator": "AND" } ], "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." } ], "id": "CVE-2023-20046", "lastModified": "2024-01-25T17:15:27.380", "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": "nvd@nist.gov", "type": "Primary" }, { "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" } ] }, "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" } ], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-522" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-289" } ], "source": "ykramarz@cisco.com", "type": "Secondary" } ] } } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.