Roland Shoemaker 8b5274cf68 ssh: disallow gssapi-with-mic if GSSAPIWithMICConfig is not set ...

The ability to trigger the 'gssapi-with-mic' authentication method is
not properly gated by the presence of the GSSAPIWithMICConfig field of
the ServerConfig type. If this field is not set and a client sends a
'gssapi-with-mic' request, regardless of if the server advertises it,
the server will panic.

This issue was discovered and reported by Joern Schneewesiz, GitLab
Security Research Team.

Fixes CVE-2020-29652

Change-Id: Ie25de2766e442c8ab46680aae3ac89b0823cdeed
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/278852
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>

2020-12-16 22:30:49 +00:00

..

agent

ssh/agent: handle ed25519.PrivateKey by value in AddedKey

2020-04-06 17:35:13 +00:00

internal/bcrypt_pbkdf

ssh: support encrypted OpenSSH private keys

2020-02-04 10:40:54 +00:00

knownhosts

crypto/ssh/knownhosts: fix out-of-date documentation for checkAddr

2019-01-23 08:56:48 +00:00

terminal

ssh/terminal: replace with a golang.org/x/term wrapper

2020-11-16 15:36:03 +00:00

test

ssh/test: fix test goroutine error handling

2019-11-17 06:32:00 +00:00

testdata

ssh: support aes256-cbc for passphrase-protected OpenSSH keys

2020-03-23 16:52:09 +00:00

benchmark_test.go

all: fix ineffectual assignments

2019-01-31 18:25:04 +00:00

buffer_test.go

go.crypto/ssh: import gosshnew.

2014-04-09 13:57:52 -07:00

buffer.go

ssh: remove unused buffer.eof return value

2017-09-25 11:19:01 +00:00

certs_test.go

ssh: accept ed25519 certs

2017-12-18 18:48:59 +00:00

certs.go

ssh: improve docs on Certificate.SignCert

2020-04-27 16:56:52 +00:00

channel.go

all: fix errors reported by vet, golint

2017-11-28 17:48:09 +00:00

cipher_test.go

ssh: rename methods in packetCipher interface

2019-04-11 14:11:16 +00:00

cipher.go

Update reference to CBC vulnerability in cipher.go

2020-04-20 10:45:11 +00:00

client_auth_test.go

ssh: add diffie-hellman-group-exchange-sha256

2019-06-17 13:33:40 +00:00

client_auth.go

ssh: improve error message for KeyboardInteractiveChallenge

2020-10-16 22:06:09 +00:00

client_test.go

ssh: fix protocol version exchange (for multi-line)

2018-01-11 10:11:23 +00:00

client.go

all: fix typos

2018-10-29 02:12:03 +00:00

common_test.go

ssh: invert algorithm choices on the server

2019-04-18 16:56:55 +00:00

common.go

ssh: drop dh-group1-sha1 from default key exchanges

2019-09-09 09:17:59 +00:00

connection.go

ssh: fixing a small typo in connection.go

2017-05-31 07:46:08 +00:00

doc.go

ssh: require host key checking in the ClientConfig

2017-03-30 15:57:35 +00:00

example_test.go

crypto/ssh: add Client.Close in Dial example

2020-10-12 17:37:05 +00:00

handshake_test.go

ssh: skip testHandshakeErrorHandlingN on js/wasm

2019-07-01 09:49:42 +00:00

handshake.go

ssh: invert algorithm choices on the server

2019-04-18 16:56:55 +00:00

kex_test.go

ssh: fix data race in dh group exchange sha256

2020-03-17 14:21:12 +00:00

kex.go

ssh: remove slow unnecessary diffie-hellman-group-exchange primality check

2020-09-30 16:06:38 +00:00

keys_test.go

ssh: reject unencrypted keys from ParsePrivateKeyWithPassphrase

2019-12-05 16:18:47 +00:00

keys.go

ssh: support aes256-cbc for passphrase-protected OpenSSH keys

2020-03-23 16:52:09 +00:00

mac.go

ssh: Add the hmac-sha2-256-etm@openssh.com algorithm

2017-02-08 15:25:40 +00:00

mempipe_test.go

ssh: fix spelling of test so that it runs

2015-07-15 23:39:58 +00:00

messages_test.go

x/crypto/ssh: support more keytypes in the agent.

2016-04-25 17:01:51 +00:00

messages.go

ssh: add diffie-hellman-group-exchange-sha256

2019-06-17 13:33:40 +00:00

mux_test.go

ssh: don't err out on channel request msgs to unknown channels

2020-06-02 18:02:16 +00:00

mux.go

ssh: don't err out on channel request msgs to unknown channels

2020-06-02 18:02:16 +00:00

server.go

ssh: disallow gssapi-with-mic if GSSAPIWithMICConfig is not set

2020-12-16 22:30:49 +00:00

session_test.go

ssh: print server exit reason in tests

2019-04-11 14:19:40 +00:00

session.go

all: run gofmt -s on source code

2017-11-28 19:40:09 +00:00

ssh_gss_test.go

ssh/gss: support kerberos authentication for ssh server and client

2019-05-10 10:41:15 +00:00

ssh_gss.go

ssh/gss: support kerberos authentication for ssh server and client

2019-05-10 10:41:15 +00:00

streamlocal.go

ssh: also start forward listeners on ListenUnix

2018-05-14 16:50:30 +00:00

tcpip_test.go

go.crypto/ssh: import gosshnew.

2014-04-09 13:57:52 -07:00

tcpip.go

ssh: don't start goroutines handling forwarded connections until needed

2018-05-14 11:17:49 +00:00

testdata_test.go

x/crypto: fix typos

2016-07-06 16:40:51 +00:00

transport_test.go

ssh: fix protocol version exchange (for multi-line)

2018-01-11 10:11:23 +00:00

transport.go

ssh: rename methods in packetCipher interface

2019-04-11 14:11:16 +00:00