CVE-2024-21626

Description

runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same attack could be used by a malicious image to allow a container process to gain access to the host filesystem through runc run ("attack 1"). Variants of attacks 1 and 2 could be also be used to overwrite semi-arbitrary host binaries, allowing for complete container escapes ("attack 3a" and "attack 3b"). runc 1.1.12 includes patches for this issue.

GitHub, Inc.

Severity: HIGH
CVE ID: CVE-2024-21626
CVSS Score: 8.6
CVSS Metrics: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Refrence: NVDMITRE

Proof Of Concept

zpxlz

Refrence: GitHub

NitroCao

PoC and Detection for CVE-2024-21626

Refrence: GitHub

Wall1e

Refrence: GitHub

cdxiaodong

CVE-2024-21626-poc-research-Reappearance-andtodo

Refrence: GitHub

zhangguanzhang

Refrence: GitHub

laysakura

Container Runtime Meetup #5 のLT用のデモ

Refrence: GitHub

V0WKeep3r

Refrence: GitHub

abian2

Refrence: GitHub

Sk3pper

Refrence: GitHub

KubernetesBachelor

POC

Refrence: GitHub

dorser

Refrence: GitHub