Vulnerability in Rust-Lang Cargo
CVE-2022-46176
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (49.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Rust-Lang Cargo — versions <= 0.67.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/rust-lang/cargo/security/advisories/GHSA-r5w3-xm58-jv6j (Third Party Advisory, Mitigation)
- github.com/rust-lang/wg-security-response/tree/main/patches/CVE-2022-46176 (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2023/11/05/6
- www.openwall.com/lists/oss-security/2023/11/06/5
Frequently asked questions
- What is CVE-2022-46176?
- CVE-2022-46176 is a medium-severity vulnerability in Rust-Lang Cargo, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.3/10. Published 2023-01-11.
- How severe is CVE-2022-46176?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2022-46176 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.