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Id: 116265
Status: new
Priority: 0/
Queue: Perl-Dist-Strawberry

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Owner: Nobody in particular
Requestors: pjiang6 [...] telus.net
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Subject: Module Net::SSH2 in Strawberry v5.24.0.1 seems have bugs.
Date: Sun, 17 Jul 2016 21:12:17 -0700
To: "bug-Perl-Dist-Strawberry [...] rt.cpan.org" <bug-Perl-Dist-Strawberry [...] rt.cpan.org>
From: Peng Jiang <pjiang6 [...] telus.net>
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Module Net::SSH2 in Strawberry v5.24.0.1 seems have bugs. It fails in key exchange with Cisco routers, Strawberry v5.22. 2.1 does not have the issue. attached debug output from the Cisco router during the testing with both versions below. Successful logon to Cisco router with Strawberry v5.22.2.1: 040306: Jul 18 02:41:35.687: SSH1: starting SSH control process 040307: Jul 18 02:41:35.687: SSH1: sent protocol version id SSH-2.0-Cisco-1.25 040308: Jul 18 02:41:35.731: SSH1: protocol version id is - SSH-2.0-libssh2_1.4.3 040309: Jul 18 02:41:35.731: SSH2 1: SSH2_MSG_KEXINIT sent 040310: Jul 18 02:41:36.327: SSH2 1: SSH2_MSG_KEXINIT received 040311: Jul 18 02:41:36.327: SSH2:kex: client->server enc:aes256-cbc mac:hmac-sha1 040312: Jul 18 02:41:36.327: SSH2:kex: server->client enc:aes256-cbc mac:hmac-sha1 040313: Jul 18 02:41:36.519: SSH2 1: expecting SSH2_MSG_KEXDH_INIT 040314: Jul 18 02:41:36.535: SSH2 1: SSH2_MSG_KEXDH_INIT received 040315: Jul 18 02:41:36.867: SSH2: kex_derive_keys complete ⇐============ 040316: Jul 18 02:41:36.867: SSH2 1: SSH2_MSG_NEWKEYS sent 040317: Jul 18 02:41:36.867: SSH2 1: waiting for SSH2_MSG_NEWKEYS 040318: Jul 18 02:41:36.883: SSH2 1: SSH2_MSG_NEWKEYS received 040319: Jul 18 02:41:37.087: AAA/BIND(00000041): Bind i/f 040320: Jul 18 02:41:37.087: AAA/AUTHEN/LOGIN (00000041): Pick method list 'default' 040321: Jul 18 02:41:37.091: SSH2 1: authentication successful for testuser 040322: Jul 18 02:41:37.095: SSH2 1: channel open request 040323: Jul 18 02:41:37.099: SSH2 1: exec request 040324: Jul 18 02:41:37.099: SSH2 1: exec message received 040325: Jul 18 02:41:37.103: SSH2 1: starting shell for vty 040326: Jul 18 02:41:37.311: SSH1: Session terminated normally Failed login to Cisco router with Strawberry v5.24.0.1: 040018: Jul 17 22:07:26.941: SSH0: starting SSH control process 040019: Jul 17 22:07:26.941: SSH0: sent protocol version id SSH-2.0-Cisco-1.25 040020: Jul 17 22:07:26.977: SSH0: protocol version id is - SSH-2.0-libssh2_1.7.0 040021: Jul 17 22:07:26.977: SSH2 0: SSH2_MSG_KEXINIT sent 040022: Jul 17 22:07:27.901: SSH2 0: SSH2_MSG_KEXINIT received 040023: Jul 17 22:07:27.901: SSH2:kex: client->server enc:aes256-cbc mac:hmac-sha1 040024: Jul 17 22:07:27.905: SSH2:kex: server->client enc:aes256-cbc mac:hmac-sha1 040025: Jul 17 22:07:28.105: SSH2 0: SSH2_MSG_KEX_DH_GEX_REQUEST received 040026: Jul 17 22:07:28.105: SSH2 0: Range sent by client is - 1024 < 1536 < 2048 040027: Jul 17 22:07:28.105: SSH2 0: Invalid modulus length <================ 040028: Jul 17 22:07:28.205: SSH0: Session disconnected - error 0x00 <==================== Regards, Peng Jiang Sent from Mail for Windows 10


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