#VU71491 Improper Verification of Cryptographic Signature in Cargo and Rust Programming Language - CVE-2022-46176

Vulnerability identifier: #VU71491

Vulnerability risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-46176

CWE-ID: CWE-347

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cargo
Rust Programming Language
Universal components / Libraries / Programming Languages & Components

Vendor: The Rust Programming Language
Rust Team

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to Cargo does not perform SSH host key verification when cloning indexes and dependencies via SSH. A remote attacker can perform MitM attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cargo: 0.0.1-pre - 0.67.0

Rust Programming Language: 1.0.0 - 1.66.0

---

External links
https://github.com/rust-lang/wg-security-response/tree/main/patches/CVE-2022-46176
https://github.com/rust-lang/cargo/security/advisories/GHSA-r5w3-xm58-jv6j

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.