Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2019-1736

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.

Published

2020-09-23T01:15:14.300

Last Modified

2024-11-21T04:37:12.767

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.6 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.4

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-347
  • Type: Primary
    CWE-347
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco fmc1000-k9_bios < 4.0.1f.0 Yes
Operating System cisco fmc1000-k9_firmware < 4.0.2h Yes
Operating System cisco fmc2500-k9_bios < 4.0.1f.0 Yes
Operating System cisco fmc2500-k9_firmware < 4.0.2h Yes
Operating System cisco fmc4500-k9_bios < 4.0.1f.0 Yes
Operating System cisco fmc4500-k9_firmware < 4.0.2h Yes
Operating System cisco sns-3515-k9_bios < 4.0.2d Yes
Operating System cisco sns-3515-k9_firmware < 4.0.2h Yes
Operating System cisco sns-3595-k9_bios < 4.0.2d Yes
Operating System cisco sns-3595-k9_firmware < 4.0.2h Yes
Operating System cisco sns-3615-k9_bios < 4.0.1i Yes
Operating System cisco sns-3615-k9_firmware < 4.0.1g Yes
Operating System cisco sns-3655-k9_bios < 4.0.1i Yes
Operating System cisco sns-3655-k9_firmware < 4.0.1g Yes
Operating System cisco sns-3695-k9_bios < 4.0.1i Yes
Operating System cisco sns-3695-k9_firmware < 4.0.1g Yes
Operating System cisco tg5004-k9_bios < 4.0.2d Yes
Operating System cisco tg5004-k9_firmware < 4.0.2h Yes
Operating System cisco tg5004-k9-rf_bios < 4.0.2d Yes
Operating System cisco tg5004-k9-rf_firmware < 4.0.2h Yes
Application cisco identity_services_engine 2.4\(0.357\) Yes
Application cisco identity_services_engine 2.6\(0.156\) Yes
Application cisco unified_computing_system 3.2\(3h\)c Yes
References