Download of code without integrity check in Buildroot - CVE-2023-45840
Published: December 6, 2023
Vulnerability identifier: #VU83911
CSH Severity: High
CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-45840
CWE-ID: CWE-494
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the affected system
The vulnerability exists due to software does not perform software integrity check when downloading updates within the package hash checking functionality in the riscv64-elf-toolchain function. A remote attacker with ability to perform man-in-the-middle (MitM) attack can supply a malicious software image and gain full control over the affected system after a successful software update.
Affected software
Buildroot
How to mitigate CVE-2023-45840
Install updates from vendor's website.