CVE-2020-10713 (GCVE-0-2020-10713)

Vulnerability from cvelistv5 – Published: 2020-07-30 12:58 – Updated: 2024-08-04 11:14
VLAI?
Summary
A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity ?
No CVSS data available.
CWE
  • Out-of-bounds Write leading to Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
Impacted products
Vendor Product Version
n/a Grub Affected: All grub2 versions before 2.06
Show details on NVD website

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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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