CVE-2024-40635

MEDIUM

containerd <1.6.38, <1.7.27, <2.0.4 - Privilege Escalation

Title source: llm

Exploitation Summary

EIP tracks 1 public exploit for CVE-2024-40635. PoCs published by yen5004.

AI-analyzed exploit summary This repository contains a functional PoC for CVE-2024-40635, demonstrating a vulnerability where Docker containers with UID/GID exceeding 32-bit signed integers may incorrectly run as root. The script checks container attributes to confirm the vulnerability.

Description

containerd is an open-source container runtime. A bug was found in containerd prior to versions 1.6.38, 1.7.27, and 2.0.4 where containers launched with a User set as a `UID:GID` larger than the maximum 32-bit signed integer can cause an overflow condition where the container ultimately runs as root (UID 0). This could cause unexpected behavior for environments that require containers to run as a non-root user. This bug has been fixed in containerd 1.6.38, 1.7.27, and 2.04. As a workaround, ensure that only trusted images are used and that only trusted users have permissions to import images.

Exploits (1)

nomisec WORKING POC

by yen5004 · poc

https://github.com/yen5004/CVE-2024-40635_POC

View Code ZIP pw:eip

This repository contains a functional PoC for CVE-2024-40635, demonstrating a vulnerability where Docker containers with UID/GID exceeding 32-bit signed integers may incorrectly run as root. The script checks container attributes to confirm the vulnerability.

Classification

Working Poc 90%

Attack Type

Lpe

Complexity

Moderate

Reliability

Reliable

Target: Docker (specific version not specified)

No auth needed

Prerequisites: Docker installed · Python with docker library · Vulnerable Docker image

MITRE ATT&CK