GO-2021-0321 - An attacker capable of spoofing DNS TXT records can redirect a WebSocket connection request to a server…

Severity: info · Published 2022-03-15

An attacker capable of spoofing DNS TXT records can redirect a WebSocket connection request to a server under their control without causing TLS certificate verification to fail. This occurs because the wrong host name is selected during this verification.

Technologies: mellium.im/xmpp (Go). Vendors: Go.

Quick answers

Is This vulnerability exploited in the wild?
No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.
How severe is This vulnerability?
Informational severity, published 15 March 2022.
Which products and versions are affected?
mellium.im/xmpp (Go) SEMVER:introduced=0.18.0,fixed=0.21.1.
Is there a fix for This vulnerability?
Yes. mellium.im/xmpp (Go): upgrade to 0.21.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected?
Check whether you run mellium.im/xmpp (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • mellium.im/xmpp (Go): upgrade to 0.21.1 or later
    go get mellium.im/xmpp@v0.21.1

Affected products

  • mellium.im/xmpp (Go) SEMVER:introduced=0.18.0,fixed=0.21.1

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.