CVE-2022-32210: High severity Nodejs Undici Node.js vulnerability
Description
Undici.ProxyAgent never verifies the remote server's certificate, and always exposes all request & response data to the proxy. This unexpectedly means that proxies can MitM all HTTPS traffic, and if the proxy's URL is HTTP then it also means that nominally HTTPS requests are actually sent via plain-text HTTP between Undici and the proxy server.
Impact
This affects all use of HTTPS via HTTP proxy using Undici.ProxyAgent with Undici or Node's global fetch. In this case, it removes all HTTPS security from all requests sent using Undici's ProxyAgent, allowing trivial MitM attacks by anybody on the network path between the client and the target server (local network users, your ISP, the proxy, the target server's ISP, etc). This less seriously affects HTTPS via HTTPS proxies. When you send HTTPS via a proxy to a remote server, the proxy can freely view or modify all HTTPS traffic unexpectedly (but only the proxy).
Patches
This issue was patched in Undici v5.5.1.
Workarounds
At the time of writing, the only workaround is to not use ProxyAgent as a dispatcher for TLS Connections.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/node-undicito a version that resolves this vulnerability.Fixed in 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4Fixed in 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3Fixed in 7.3.0+dfsg1+~cs24.12.11-1Fixed in 8.12.2+dfsg+~cs3.2.3-2 - Upgrade
Upgrade
debian/node-undicito a version that resolves this vulnerability.Fixed in 5.6.1+dfsg1+~cs18.9.16-1 - Upgrade
Upgrade
npm/undicito a version that resolves this vulnerability.Fixed in 5.5.1 - Upgrade
Upgrade
Undicito a version that resolves this vulnerability.Fixed in 5.5.1 - Configuration
Do not use ProxyAgent as a dispatcher for TLS connections.
Undici.ProxyAgent use as a dispatcher for TLS connections = disabled
Event History
Frequently Asked Questions
What is the vulnerability ID of this issue?
The vulnerability ID of this issue is CVE-2022-32210.
What is the severity of CVE-2022-32210?
The severity of CVE-2022-32210 is medium with a CVSS score of 6.5.
Which software is affected by CVE-2022-32210?
Node.js Undici versions 4.8.2 to 5.5.1 are affected by CVE-2022-32210.
What is the impact of CVE-2022-32210?
This vulnerability allows proxies to perform Man-in-the-Middle attacks on HTTPS traffic and expose all request and response data.
Are there any references for CVE-2022-32210?
Yes, you can find references for CVE-2022-32210 at the following links: [GitHub advisory](https://github.com/nodejs/undici/security/advisories/GHSA-pgw7-wx7w-2w33) and [HackerOne report](https://hackerone.com/reports/1583680).