Container escape via privileged eBPF tracing
Published Oct 19, 2023 · Updated Sep 12, 2024
Container isolation failure in TinyLab linux-lab 1.1-rc1 and cloud-lab 0.8-rc2 and 1.1-rc1 allows remote attackers to control the host. The default container configuration enables privileged eBPF tracing, and bpf_probe_write_user modifies host-process memory and open files. Access inside a container started with SYS_ADMIN, privileged mode, or the Docker socket mounted is required; the demonstrated attack hijacks host cron to execute commands outside the container.
Summary
What happened
Container isolation failure in TinyLab linux-lab 1.1-rc1 and cloud-lab 0.8-rc2 and 1.1-rc1 allows remote attackers to control the host. The default container configuration enables privileged eBPF tracing, and bpf_probe_write_user modifies host-process memory and open files. Access inside a container started with SYS_ADMIN, privileged mode, or the Docker socket mounted is required; the demonstrated attack hijacks host cron to execute commands outside the container.
The record
- CVE
- CVE-2022-42150
- Published
- Oct 19, 2023
- Updated
- Sep 12, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-276, T1611
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 19, 2023CVE publishedPublication date reported by the CVE source.
- Sep 12, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Universal Container Escape with eBPF proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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