CVE-2022-46176
Description
Cargo is a Rust package manager. The Rust Security Response WG was notified that Cargo did not perform SSH host key verification when cloning indexes and dependencies via SSH. An attacker could exploit this to perform man-in-the-middle (MITM) attacks. This vulnerability has been assigned CVE-2022-46176. All Rust versions containing Cargo before 1.66.1 are vulnerable. Note that even if you don't explicitly use SSH for alternate registry indexes or crate dependencies, you might be affected by this vulnerability if you have configured git to replace HTTPS connections to GitHub with SSH (through git's [`url.<base>.insteadOf`][1] setting), as that'd cause you to clone the crates.io index through SSH. Rust 1.66.1 will ensure Cargo checks the SSH host key and abort the connection if the server's public key is not already trusted. We recommend everyone to upgrade as soon as possible.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 0.66.0+ds1-1 |
| debian | bullseye | affected | |
| sles | affected | | |
| debian | forky | fixed | 0.66.0-1 |
| debian | sid | fixed | 0.66.0-1 |
| debian | trixie | fixed | 0.66.0-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| crates.io | cargo | <0.67.1 | 0.67.1 |
References
- https://security-tracker.debian.org/tracker/CVE-2022-46176
- https://www.suse.com/security/cve/CVE-2022-46176.html
- https://github.com/rust-lang/cargo/security/advisories/GHSA-r5w3-xm58-jv6j
- https://nvd.nist.gov/vuln/detail/CVE-2022-46176
- https://git-scm.com/docs/git-config#Documentation/git-config.txt-urlltbasegtinsteadOf
- https://github.com/rust-lang/cargo
- https://github.com/rust-lang/wg-security-response/tree/main/patches/CVE-2022-46176
- https://www.rust-lang.org/policies/security
- http://www.openwall.com/lists/oss-security/2023/11/05/6
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.