CVE-2019-1736
Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability
En bref
- Source
- NVD
- EPSS
- EPSS 0.25 % · centile 16 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- cisco
- Statut NVD
- Modified
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.
Faiblesses (CWE)
- CWE-347 — Vérification incorrecte d'une signature cryptographique
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 6.2 | CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.6 | CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 6.2 | CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | MEDIUM 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2019-10293
- GCVE · GCVE-0-2019-1736
Avis du CERT-FR
- CERTFR-2020-AVI-103 — Vulnérabilité dans les produits UCS Cisco · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:cisco:fmc1000-k9_bios:*:*:*:*:*:*:*:*< 4.0.1f.0cpe:2.3:o:cisco:fmc1000-k9_firmware:*:*:*:*:*:*:*:*< 4.0.2hcpe:2.3:o:cisco:fmc2500-k9_bios:*:*:*:*:*:*:*:*< 4.0.1f.0cpe:2.3:o:cisco:fmc2500-k9_firmware:*:*:*:*:*:*:*:*< 4.0.2hcpe:2.3:o:cisco:fmc4500-k9_bios:*:*:*:*:*:*:*:*< 4.0.1f.0cpe:2.3:o:cisco:fmc4500-k9_firmware:*:*:*:*:*:*:*:*< 4.0.2hcpe:2.3:o:cisco:sns-3515-k9_bios:*:*:*:*:*:*:*:*< 4.0.2dcpe:2.3:o:cisco:sns-3515-k9_firmware:*:*:*:*:*:*:*:*< 4.0.2hcpe:2.3:o:cisco:sns-3595-k9_bios:*:*:*:*:*:*:*:*< 4.0.2dcpe:2.3:o:cisco:sns-3595-k9_firmware:*:*:*:*:*:*:*:*< 4.0.2hcpe:2.3:o:cisco:sns-3615-k9_bios:*:*:*:*:*:*:*:*< 4.0.1icpe:2.3:o:cisco:sns-3615-k9_firmware:*:*:*:*:*:*:*:*< 4.0.1gcpe:2.3:o:cisco:sns-3655-k9_bios:*:*:*:*:*:*:*:*< 4.0.1icpe:2.3:o:cisco:sns-3655-k9_firmware:*:*:*:*:*:*:*:*< 4.0.1gcpe:2.3:o:cisco:sns-3695-k9_bios:*:*:*:*:*:*:*:*< 4.0.1icpe:2.3:o:cisco:sns-3695-k9_firmware:*:*:*:*:*:*:*:*< 4.0.1gcpe:2.3:o:cisco:tg5004-k9_bios:*:*:*:*:*:*:*:*< 4.0.2dcpe:2.3:o:cisco:tg5004-k9_firmware:*:*:*:*:*:*:*:*< 4.0.2hcpe:2.3:o:cisco:tg5004-k9-rf_bios:*:*:*:*:*:*:*:*< 4.0.2dcpe:2.3:o:cisco:tg5004-k9-rf_firmware:*:*:*:*:*:*:*:*< 4.0.2hcpe:2.3:a:cisco:identity_services_engine:2.4\(0.357\):*:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.6\(0.156\):*:*:*:*:*:*:*cpe:2.3:a:cisco:unified_computing_system:3.2\(3h\)c:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| Cisco · Cisco Identity Services Engine Software | affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |