Kubernetes kubectl cp Vulnerable to Symlink Attack in k8s.io/kubernetes
Kubernetes kubectl cp Vulnerable to Symlink Attack in k8s.io/kubernetes
02 / AFFECTED SOFTWARE
Affected packages
47 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Kubernetes kubectl cp Vulnerable to Symlink Attack in k8s.io/kubernetes
The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.
The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.
05 / REFERENCES