gsd-2019-1736
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2019-1736", "description": "A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.", "id": "GSD-2019-1736" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2019-1736" ], "details": "A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.", "id": "GSD-2019-1736", "modified": "2023-12-13T01:23:51.393911Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2020-02-19T16:00:00", "ID": "CVE-2019-1736", "STATE": "PUBLIC", "TITLE": "Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco Identity Services Engine Software ", "version": { "version_data": [ { "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 firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco." } ] }, "exploit": [ { "lang": "eng", "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": { "baseScore": "6.2", "vectorString": "CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H ", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-347" } ] } ] }, "references": { "reference_data": [ { "name": "20200219 Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass" } ] }, "source": { "advisory": "cisco-sa-20200219-ucs-boot-bypass", "defect": [ [ "CSCvn09490", "CSCvq27796", "CSCvq27803" ] ], "discovery": "INTERNAL" } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:fmc1000-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1f.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:fmc1000-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2h", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:fmc2500-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1f.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:fmc2500-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2h", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:fmc4500-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1f.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:fmc4500-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2h", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:sns-3515-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2d", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:sns-3515-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2h", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:sns-3595-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2d", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:sns-3595-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2h", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:sns-3615-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1i", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:sns-3615-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1g", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:sns-3655-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1i", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:sns-3655-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1g", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:sns-3695-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1i", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:sns-3695-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.1g", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:tg5004-k9_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2d", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:tg5004-k9_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2h", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:cisco:tg5004-k9-rf_bios:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2d", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:cisco:tg5004-k9-rf_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.0.2h", "vulnerable": true } ], "operator": "AND" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:cisco:identity_services_engine:2.4\\(0.357\\):*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:cisco:identity_services_engine:2.6\\(0.156\\):*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:cisco:unified_computing_system:3.2\\(3h\\)c:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "ID": "CVE-2019-1736" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-347" } ] } ] }, "references": { "reference_data": [ { "name": "20200219 Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability", "refsource": "CISCO", "tags": [ "Patch", "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.9, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0" }, "exploitabilityScore": 3.4, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "HIGH", "baseScore": 6.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 0.7, "impactScore": 5.9 } }, "lastModifiedDate": "2020-10-23T18:21Z", "publishedDate": "2020-09-23T01:15Z" } } }
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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.
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- 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.