CVE-2017-3204
First published: Tue Apr 04 2017(Updated: )
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.
Credit: cret@cert.org cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Golang Crypto | <=2017-03-17 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2017-3204
- https://github.com/golang/go/issues/19767
- https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991
- https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/
- https://go.dev/cl/340830
- https://go.dev/issue/19767
- https://go.googlesource.com/crypto/+/e4e2799dd7aab89f583e1d898300d96367750991
- https://godoc.org/golang.org/x/crypto/ssh
- https://pkg.go.dev/vuln/GO-2020-0013
- https://web.archive.org/web/20170423080311/https://www.securityfocus.com/bid/97481
- https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-3204
- https://github.com/advisories/GHSA-xhjq-w7xm-p8qj (Advisory)
- http://www.securityfocus.com/bid/97481
- https://bridge.grumpy-troll.org/2017/04/golang-ssh-security
- https://go.dev/cl/38701
- collector/nvd-index
- agent/author
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-xhjq-w7xm-p8qj
- alias/CVE-2017-3204
- agent/software-canonical-lookup
- agent/severity
- agent/remedy
- agent/weakness
- agent/last-modified-date
- agent/references
- agent/description
- agent/event
- collector/nvd-cve
- source/NVD
- collector/github-advisory
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/golang
- canonical/golang crypto
- version/golang crypto/2017-03-17
- package-manager/go