PT-2023-29726 · Buildroot+1 · Buildroot+1

Claudio Bozzato + 1 · Published 2023-12-05 · Updated 2023-12-12 · CVE-2023-45840

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Buildroot versions 2023.08.1 through 2023.08.1 Buildroot dev commit 622698d7847

Description Multiple data integrity vulnerabilities exist in the package hash checking functionality. A specially crafted man-in-the-middle attack can lead to arbitrary command execution in the builder. This issue is related to the riscv64-elf-toolchain package.

Recommendations For Buildroot version 2023.08.1, consider updating to a newer version that addresses the package hash checking functionality issue. For Buildroot dev commit 622698d7847, as a temporary workaround, consider restricting the use of the riscv64-elf-toolchain package until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-494

Related Identifiers

CVE-2023-45840

Affected Products

Buildroot

Riscv64-Elf-Toolchain

References · 9

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2023-1844 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-45840 · Security Note
• https://osv.dev/vulnerability/CVE-2023-45840 · Vendor Advisory
• https://t.me/cvenotify/62366 · Telegram Post
• https://t.me/cvenotify/62291 · Telegram Post
• https://t.me/cvenotify/63253 · Telegram Post
• https://twitter.com/CVEnew/status/1732001318829760790 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1732030151653748981 · Twitter Post
• http://openwall.com/lists/oss-security/2023/12/11/1 · Note