#VU86037 Path traversal in BuildKit - CVE-2024-23652

Vulnerability identifier: #VU86037

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-23652

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BuildKit
Universal components / Libraries / Software for developers

Vendor: Moby project

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within BuildKit frontend or Dockerfile using RUN --mount. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

BuildKit: 0.3.0 - 0.12.4

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External links
https://github.com/moby/buildkit/security/advisories/GHSA-4v98-7qmw-rqr8
https://github.com/moby/buildkit/pull/4603
https://github.com/moby/buildkit/releases/tag/v0.12.5

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.