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Insecure digital certificates In golang-go.crypto

Description

golang.org/x/crypto/ssh Man-in-the-Middle attack The Go SSH library (golang.org/x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks if ClientConfig.HostKeyCallback is not set. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Package
Affected version
Patched versions

Aliases

1. CVE-2017-32042. NVD-2017-32043. NVD-2017-32044. OSV-DEBIAN-2017-32045. OSV-2017-32046. GHSA-xhjq-w7xm-p8qj7. GCVE-2017-32048. SECURITY-TRACKER-CVE-2017-3204

References

1. https://github.com/golang/go/issues/197672. https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d963677509913. https://bridge.grumpy-troll.org/2017/04/golang-ssh-security4. https://go.dev/cl/3408305. https://go.dev/cl/387016. https://go.dev/issue/197677. https://go.googlesource.com/crypto/+/e4e2799dd7aab89f583e1d898300d963677509918. https://godoc.org/golang.org/x/crypto/ssh9. https://pkg.go.dev/vuln/GO-2020-001310. https://web.archive.org/web/20170423080311/https://www.securityfocus.com/bid/9748111. https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-320412. https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/

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