CVE-2022-21505

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-21505
In the linux kernel, if IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents setting "ima_appraise=log" from the boot param when Secure Boot is enabled, but this does not cover cases where lockdown is used without Secure Boot. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity, Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

6.7 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/linus/543ce63b664e2c2f9533d089a4664b559c3e6b5b
https://linux.oracle.com/cve/CVE-2022-21505.html
Configurations

No configuration.

History

27 Dec 2024, 17:15

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, si se utiliza la evaluación IMA con el parámetro de arranque "ima_appraise=log", el bloqueo se puede anular con kexec en cualquier máquina cuando el arranque seguro está deshabilitado o no está disponible. IMA impide configurar "ima_appraise=log" desde el parámetro de arranque cuando el arranque seguro está habilitado, pero esto no cubre los casos en los que se utiliza el bloqueo sin arranque seguro. CVSS 3.1 Puntuación base 6,7 (impactos de confidencialidad, integridad y disponibilidad). Vector CVSS: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
CWE CWE-346

24 Dec 2024, 19:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-12-24 19:15

Updated : 2024-12-27 17:15

NVD link : CVE-2022-21505

Mitre link : CVE-2022-21505

CVE.ORG link : CVE-2022-21505

JSON object : View

Products Affected

No product.

CWE
CWE-346

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