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| author | Karol Będkowski <KarolBedkowski@users.noreply.github.com> | 2020-05-06 16:07:13 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-05-06 10:07:13 -0600 |
| commit | b814c0af9c2c20a92f86e4db9836fd6b127dcf5b (patch) | |
| tree | a35dd0edf9d14c610f21dc96cfef63ec04cd176c | |
| parent | 9e5d9e2530109c72a406979fabe9ac5352171423 (diff) | |
tls/client auth: verify first certificates in client request (#3344)
When client certificate is enabled Caddy check only last certificate from
request. When this cert is not in list of trusted leaf certificates,
connection is rejected. According to RFC TLS1.x the sender's certificate
must come first in the list. Each following certificate must directly
certify the one preceding it.
This patch fix this problem - first certificate is checked instead of last.
| -rw-r--r-- | modules/caddytls/connpolicy.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/modules/caddytls/connpolicy.go b/modules/caddytls/connpolicy.go index 1de7c2e..3a18061 100644 --- a/modules/caddytls/connpolicy.go +++ b/modules/caddytls/connpolicy.go @@ -395,7 +395,7 @@ func (clientauth ClientAuthentication) verifyPeerCertificate(rawCerts [][]byte, return fmt.Errorf("no client certificate provided") } - remoteLeafCert, err := x509.ParseCertificate(rawCerts[len(rawCerts)-1]) + remoteLeafCert, err := x509.ParseCertificate(rawCerts[0]) if err != nil { return fmt.Errorf("can't parse the given certificate: %s", err.Error()) } |