kaniko is a tool to build container images from a Dockerfile, inside a container or Kubernetes cluster. Starting in version 1.25.4 and prior to version 1.25.10, kaniko unpacks build context archives using `filepath.Join(dest, cleanedName)` without enforcing that the final path stays within `dest`. A tar entry like `../outside.txt` escapes the extraction root and writes files outside the destination directory.
In environments with registry authentication, this can be chained with docker credential helpers to achieve code execution within the executor process. Version 1.25.10 uses securejoin for path resolution in tar extraction.
Attack Parameters
Attack Vector
Network
Атака возможна удалённо
Attack Complexity
Low
Легко эксплуатировать
Privileges Required
None
Права не нужны
User Interaction
None
Не нужно действие пользователя
Impact Assessment
Confidentiality
None
Нет утечки данных
Integrity
High
Полная модификация данных
Availability
Low
Частичное нарушение работы
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/chainguard-forks/kaniko/commit/a370e4b1f66e6e842b685c8f70ed5…
security-advisories@github.com
https://github.com/chainguard-forks/kaniko/pull/326
security-advisories@github.com
https://github.com/chainguard-forks/kaniko/security/advisories/GHSA-6rxq-q92g-4…
security-advisories@github.com