(This document is canonically: https://advisories.nats.io/CVE/CVE-2022-26652.txt)
NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing.
JetStream is the optional RAFT-based resilient persistent feature of NATS.
The JetStream streams can be backed up and restored via NATS. The backup format is a tar archive file. Inadequate checks on the filenames within the archive file permit a so-called "Zip Slip" attack in the stream restore.
NATS nats-server through 2022-03-09 (fixed in release 2.7.4) did not correctly sanitize elements of the archive file, thus a user of NATS could cause the NATS server to write arbitrary content to an attacker-controlled filename.
NATS Server: * 2.2.0 up to and including 2.7.3. + Introduced with JetStream Restore functionality * Fixed with nats-io/nats-server: 2.7.4 * Docker image: nats https://hub.docker.com/_/nats * NB users of OS package files from our releases: a change in goreleaser defaults, discovered late in the release process, moved the install directory from /usr/local/bin to /usr/bin; we are evaluating the correct solution for subsequent releases, but not recutting this release.
NATS Streaming Server * 0.15.0 up to and including 0.24.2 * Fixed with nats-io/nats-streaming-server: 0.24.3 * Embeds a nats-server, but this server is the old approach which JetStream replaces, so unlikely (but not impossible) to be configured with JS support
Upgrade the NATS server to at least 2.7.4.
We fully support the util/nats-server-hardened.service configuration for running a NATS server and encourage this approach.
This issue was reported (on 2022-03-07) to the NATS Maintainers by
Yiming Xiang, TIANJI LAB of NSFOCUS.
Thank you / 谢谢你!
{ "severity": "HIGH", "github_reviewed": true, "github_reviewed_at": "2022-03-10T22:07:30Z", "nvd_published_at": "2022-03-10T17:47:00Z", "cwe_ids": [ "CWE-22" ] }