Bug#561881: openssh-server: scp/sftp is not working when using key based (authorized_keys2) authentication

[Daniel Milde <info@milde.cz>]

Package: openssh-server
Version: 1:5.1p1-5
Severity: important

If I use key based authentication (without password), scp and sftp
tools doesn't work. It's probably bacause remote host returns message "Must be connected to a terminal.". 
You can try this behaviour by executing command "ssh server_addr true".
The same message returns scp, when key based authentication is on.

I already tried to turn of PAM (UsePAM no), but it didn't helped.

More info in OpenSSH bugzilla:
https://bugzilla.mindrot.org/show_bug.cgi?id=1687


-- System Information:
Debian Release: 5.0.3
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.26.5 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages openssh-server depends on:
ii  adduser         3.110                    add and remove users and groups
ii  debconf [debcon 1.5.24                   Debian configuration management sy
ii  dpkg            1.14.25                  Debian package management system
ii  libc6           2.7-18                   GNU C Library: Shared libraries
ii  libcomerr2      1.41.3-1                 common error description library
ii  libkrb53        1.6.dfsg.4~beta1-5lenny1 MIT Kerberos runtime libraries
ii  libpam-modules  1.0.1-5+lenny1           Pluggable Authentication Modules f
ii  libpam-runtime  1.0.1-5+lenny1           Runtime support for the PAM librar
ii  libpam0g        1.0.1-5+lenny1           Pluggable Authentication Modules l
ii  libselinux1     2.0.65-5                 SELinux shared libraries
ii  libssl0.9.8     0.9.8g-15+lenny5         SSL shared libraries
ii  libwrap0        7.6.q-16                 Wietse Venema's TCP wrappers libra
ii  lsb-base        3.2-20                   Linux Standard Base 3.2 init scrip
ii  openssh-blackli 0.4.1                    list of default blacklisted OpenSS
ii  openssh-client  1:5.1p1-5                secure shell client, an rlogin/rsh
ii  procps          1:3.2.7-11               /proc file system utilities
ii  zlib1g          1:1.2.3.3.dfsg-12        compression library - runtime

Versions of packages openssh-server recommends:
pn  openssh-blacklist-extra       <none>     (no description available)
pn  xauth                         <none>     (no description available)

Versions of packages openssh-server suggests:
pn  molly-guard                   <none>     (no description available)
pn  rssh                          <none>     (no description available)
pn  ssh-askpass                   <none>     (no description available)

-- debconf information:
  ssh/new_config: true
* ssh/use_old_init_script: true
  ssh/vulnerable_host_keys:
  ssh/encrypted_host_key_but_no_keygen:
  ssh/disable_cr_auth: false