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MEDIUM 6.3

GHSA-45gg-vh54-h5m9

golang.org/x/crypto/ssh vulnerable to invoking bypass of certificate restrictions

Details

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil Permissions with PartialSuccessError now results in a connection error.

Are you affected?

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Affected packages

Go / golang.org/x/crypto/ssh
Introduced in: 0 Fixed in: 0.52.0
Fix go get golang.org/x/crypto/ssh@v0.52.0

References