Improper Signature Verification Affecting golang.org/x/crypto/ssh package, versions <0.0.0-20200220183623-bac4c82f6975
Threat Intelligence
Exploit Maturity
Mature
EPSS
24.93% (97th
percentile)
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Test your applications- Snyk ID SNYK-GOLANG-GOLANGORGXCRYPTOSSH-551923
- published 21 Feb 2020
- disclosed 21 Feb 2020
- credit Alex Gaynor
Introduced: 21 Feb 2020
CVE-2020-9283 Open this link in a new tabHow to fix?
Upgrade golang.org/x/crypto/ssh to version 0.0.0-20200220183623-bac4c82f6975 or higher.
Overview
golang.org/x/crypto/ssh is a SSH client and server
Affected versions of this package are vulnerable to Improper Signature Verification. An attacker can craft an ssh-ed25519 or sk-ssh-...@openssh.com public key, such that the library will panic when trying to verify a signature with it. Clients can deliver such a public key and signature to any golang.org/x/crypto/ssh server with a PublicKeyCallback, and servers can deliver them to any golang.org/x/crypto/ssh client.
References
CVSS Scores
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