Components: OpenSSH 3.4p1 PuTTy 0.52 (on client, configred to use SSH2) VNC Viewer 3.3.3R2 (ran over SSH) Effected: Several servers and users all running same config. Error occurs when using above 3 components together. PuTTy error described in the following webpage occurs: http://www.tartarus.org/~owen/putty-docs/AppendixA.html#A.6 We've tried there recommended fix ("Imitate SSH 2 MAC bug") and this gives the MAC error straight away. Could the error relate to a bug in the message authentification codes with OpenSSH? If not suggestions welcome. Regards Edward Moore ---------------------------------------------------------------------------- dwpprod01:/> pkginfo -l SMCossh PKGINST: SMCossh NAME: openssh CATEGORY: application ARCH: sparc VERSION: 3.4p1 BASEDIR: /usr/local VENDOR: The OpenSSH Group PSTAMP: Steve Christensen INSTDATE: Aug 23 2002 13:44 EMAIL: steve@smc.vnet.net STATUS: completely installed FILES: 50 installed pathnames 5 shared pathnames 11 directories 10 executables 1 setuid/setgid executables 11188 blocks used (approx) dwpprod01:/> uname -a SunOS dwpprod01 5.8 Generic_108528-15 sun4u sparc SUNW,Sun-Fire-480R dwpprod01:/>
openssh does not have the bug described in http://www.tartarus.org/~owen/putty-docs/AppendixA.html#A.6 what do you see? what ciphers are used? what hmac? what does sshd -ddd say when a client connects? do you have more information?
> what do you see? Error message with PuTTy, as detailed. Connection is then terminated by PuTTy. > what ciphers are used? We're using RSA 1024 keys with PuTTy. Is this the cypher used for the connection? > what hmac? what is a hmac? thanks. > what does sshd -ddd say when a client connects? I'll get back to you with this -- got to go through change management procedures ------------------------------------------------------------------------------ MORE INFORMATION: There's no time fixed interval since starting the connection when the problem occurs -- it's random but averaging about every 2hrs but only when using VNC (so far) -- maybe just because of increased traffic increasing error frequency? Error terminates connection. --- WHY IS THIS PROBABLY OPEN SSH RELATED? This does not occur nearly as frequent on other servers where using the same PuTTy version is communicating with OpenSSH version 3.2.0p1. --- RMSD-BBP-W03:/> pkginfo -l SMCossh3 PKGINST: SMCossh3 NAME: openssh CATEGORY: application ARCH: sparc VERSION: 3.0.2p1 BASEDIR: /usr/local VENDOR: The OpenSSH Group PSTAMP: Steve Christensen INSTDATE: Feb 26 2002 15:09 EMAIL: steve@smc.vnet.net STATUS: completely installed FILES: 47 installed pathnames 7 shared pathnames 10 directories 9 executables 9667 blocks used (approx) RMSD-BBP-W03:/>
i don't see how this is caused by openssh
Mass change of RESOLVED bugs to CLOSED