ECO kit SSHB-V602P060
SSHB_V602P060 ECO kit rev 6.0 For TCPware 6.0-2 20-Sep-2022
Copyright (c) 2010-2022 Process Software LLC
This ECO kit provides a new version of the following files for
V6.0-2:
LDAP-PLUGIN.EXE LOAD_SSHLEI.EXE PUBLICKEY-SERVER.EXE
PUBLICKEY_ASSISTANT.EXE SCP-SERVER1.EXE
SCP2.EXE SECURID-PLUGIN.EXE SFTP-SERVER2.EXE
SFTP2.EXE SSH-ADD2.EXE SSH-AGENT2.EXE
SSH-CERTTOOL.EXE SSH-CERTVIEW.EXE SSH-CMPCLIENT.EXE
SSH-KEYGEN.EXE SSH-KEYGEN2.EXE SSH-SIGNER2.EXE
SSH2.EXE SSHD.EXE SSHD2.EXE
SSHD_MASTER.EXE SSHLEI.EXE SSH_FSCLM.EXE
SSH_ZLIB.EXE UNLOAD_SSHLEI.EXE START_SSH.COM
SSHSHR.EXE
This patch is applicable to TCPware SSH on V 6.0 on all supported
versions of OpenVMS Alpha and OpenVMS I64.
NOTE: A system reboot is required after installing this kit.
This kit has an ECO ranking of 3.
This update to Process Software's implementation of SSH adds functionality
to Alpha AXP and ia64 systems to support SSH Suite B (RFC 6329), which
provides new key exchange mechanisms, new encryption methods and new
hashes (MACS). Primary testing has been with OpenSSH, with additional
testing with PuTTY, Core FTP and other applications that use SSH. Some of
the applications had problems with older versions that were resolved when
upgrading to a more recent version.
Change details:
- Change default version timeout to be 10 seconds (instead of 1 minute).
The value can be controlled by define/system the logical
TCPWARE_SSH_CONNECT_ID_TIMEOUT to a VMS differential time before
starting SSH.
SSHB-V602P060 14-Oct-2022
- Change when SSHD_MASTER_DEBUG is check to be at startup so that the
value is available for error reporting when the cause of the error
could also have a negative impact on the ability to check the logical.
The SSHD_Master process now only checks for the logical
SSHD_MASTER_DEBUG when it is started.
SSHB-V602P059 20-Sep-2022
- Correct an error in an exit handler so that it can work as desired.
SSHB-V602P058 16-Sep-2022
- Change error reporting in SSHD_MASTER to not use STRERROR, which
appears to be causing compute and I/O bound in some circumstances.
SSHB-V602P057 6-Sep-2022
- Add bounds checking to accesses of the global section.
SSHB-V602P057 29-Aug-2022
- Correct an error in SELECT parameters in SSHD_MASTER.
SSHB-V602P057 25-Aug-2022
- Correct an error in DUPLNAM handling in SSHD_MASTER.
SSHB-V602P056 2-Aug-2022
- More work on exit handler to delete SSH_EXPIRED_PWD_ logical names.
SSHB-V602P055 22-Jul-2022
- Work to handle ECDSA keys stored in the same format as DSA and RSA
keys as some systems are changing towards that format. This
maintains compatibility with other implementations. Prior ECDSA key
formats continue to be handled. SSHB-V602P055 22-Jul-2022
- Correct an error path in SSHD_MASTER that could leave ASTs disabled.
SSHB-V602P054 21-Jul-2022
- Add an exit handler to make sure that logical names of the format
SSH_EXPIRED_PWD_ are deleted when SSHD2 exits.
SSHB-V602P053 12-Jun-2022
- Have SCP2 and SFTP2 treat "file name syntax error" as "file not
found" to avoid warnings about unexpected errors.
SSHB-V602P052 14-Feb-2022
- Correct an error in /PRESERVE for SCP2. /PRESERVE[=all] is the
default, even when not specified.
SSHB-V602P051 9-Feb-2022
- Correct an error in SSH version number string format. Disable key
exchange guesses, which are of questionable value.
SSHB-V602P050 28-Jan-2022
- Correct a path in SFTP-SERVER2 that would not get the file type
properly set. SSHB-V602P050 10-Jan-2022
- The qualifier /exit_on_error will cause SFTP to stop processing
commands and exit on the first error encountered when in batch mode.
The default is to NOT exit on error.
SSHB-V602P050 BZ 6733 ECO Rank 3 3-Jan-2022
- The qualifier /noverify will disable the displaying of each command
when in batch mode. The default is /verify.
SSHB-V602P050 BZ 6729 ECO Rank 3 3-Jan-2022
- Add optional values (ALL, DATES, ATTRIBUTES) to the /PRESERVE
qualifier. These values can be negated to choose what is preserved.
The default is ALL.
SSHB-V602P050 BZ 6724 ECO Rank 3 3-Jan-2022
- Add ip address to message that is logged to opcom when there is a
timeout or bad format for the SSH id message that is exchanged at
the beginning. SSHB-0050_A024 BZ 6742 ECO Rank 3 3-Jan-2022
- Correct a problem with "successful" intrusions being logged.
SSHB-V602P050 ECO Rank 3 12-Oct-2021
- More work on memory growth problem with SSH-AGENT2.
SSHB-V602P049 ECO Rank 3 1-Oct-2021
- Correct a memory leak in SSH-AGENT2.
SSHB-V602P048 ECO Rank 3 17-Aug-2021
- Update SSHD_MASTER.EXE to correct a channel leak problem
SSHB-V602P047 ECO Rank 3 30-Jul-2021
- Correct a problem with SSH-SIGNER2 that prevented hostbased
authentication from working. Add support to allow Suite B keys for
host based authentication on Alpha and ia64 systems.
An ECDSA521 key will be named HOST_EXAMPLE_COM_ECDSA-SHA2-NISTP21.PUB
SSHB-V602P046 ECO Rank 3 14-May-2021
- The updated images correct a problem with SSHKEYGEN/SSH2 on VAX
processors.
SSHB-V602P045 ECO Rank 3 23-Sep-2020
- If the logical TCPWARE_SSH_VMS_ONLY_STATUS is defined then the SSH
exit status only reflects the status (success/failure) of the SSH
command, and does not include any status from the remote system.
SSHB-V602P045 ECO Rank 3 31-Aug-2020
- Set the symbol SSH_REMOTE_EXIT_STATUS to the value of "exit-status"
provided by the remote system documented in RFC 4254 section 6.10.
Interpretation of this value depends upon the remote system.
SSHB_V602P045 ECO Rank 3 20-Aug-2020
- Correct an error in handling the use of TCPWARE_SSH_username_ROOT
logical in some cases. SSHB_V602P044 ECO Rank 3 17-Jun-2020
- Correct an error in ECDH signing that can cause disconnects during
key exchange. (AXP and ia64 only) SSHB_V602P044 ECO Rank 3 12-Jun-2020
- Correct a problem with exchanging files with FileZilla.
SSH_V602P043 ECO Rank 3 21-Apr-2020
- Allow a default file size to be specified with the logical
TCPWARE_SFTP_DEFAULT_SIZE for interacting with servers that don't
return a file size.
SSH_V602P042 ECO Rank 3 24-Sep-2019
- Recognize that WS_FTP-12.7 doesn't like IGNORE messages while doing
Group Exchange Key Exchange.
SSH_V602P041 ECO Rank 3 9-Sep-2019
- Correct an error in the input sensing code that could cause delays.
SSH_V602P040 ECO Rank 3 8-Jul-2019
- If the logical SSH_STEP_THROUGH_RADIUS_ADDRESSES is defined to
True/Yes/1 then each attempt to do authenication via the radius
server will use a different returned address when the DNS lookup
returns multiple addresses, instead of just trying the first
address. This provides additional failover capability if the DNS
lookup of the radius host always returns the addresses in the same
order. If the DNS lookup does a round-robin of the addresses, then
the traditional behavior will provide failover capability.
SSHB_V602P040 ECO Rank 3 8-Jul-2019
- Correct an error in Group Exchange Key Exchange for group 18.
SSHB_V602P040 ECO Rank 3 8-Jul-2019
- Change installation procedures such that the V7 SFTP2 and SCP2
Alpha AXP images are only used for system running VMS V7.2 and later.
There have been some problems using the V7 images on earlier V7 VMS
systems. The difference between the V6 and V7 images is large
file and ODS-5 support, which is only in VMS V7.2 and later.
SSHB_V602P040 ECO Rank 3 10-May-2019
- Correct a problem in SFTP2 with LCD to a logical name.
SSHB-039_A024 ECO Rank 3 27-Mar-2019
- Correct a problem that can lead to dangling SFTP_SERVER processes.
SSHB-038_A055 ECO Rank 3 7-Mar-2019
- Fix some parsing problems in SSH_FXP_REALPATH
SSHB_038-A024 ECO Rank 3 17-Jan-2019
- Fix a channel leak in SSHD_MASTER.
SSHB-038 ECO Rank 3 14-Jan-2019
- Add connection timeout routine to SSH-AGENT2 to deal with dangling
connections that lead to consumption of bytlm.
SSHB-V602P037 ECO Rank 3 14-Dec-2018
- Improve CD operations in VMS mode when a logical is used as the target.
SSHB-V602P027 ECO Rank 3 7-Dec-2018
- Correct some memory leaks in SSH-AGENT2, which could cause problems
with heavy usage. SSHB-V602P036 ECO Rank 3 21-Nov-2018
- Correct a problem with verifying an RSA host key with ECDH
key exchange. SSHB-V602P035 ECO Rank 3 31-Oct-2018
- Correct a problem with passwords that are 32 characters long.
SSHB-V602P034 ECO Rank 3 17-Sep-2018
- Updates to key exchange code to support diffie-hellman-group14-sha256
SSHB_V602P033 ECO Rank 3 10-Aug-2018
- Updates to certificate authentication code after testing with
RSA2048-SHA256 certificates.
SSHB_V602P033 ECO Rank 3 29-May-2018
- Added configuration variable RadiusTimeout to allow site
configuration of Radius Timeout value. The default value is 3
seconds. SSH-029_A055 ECO Rank 3 12-Jul-2018
- Correct a data structure alignment issue in the I/O module to
improve performance. This provides new images for SSH2, SSHD2,
SFTP2, SCP2 and SFTP-SERVER2. SSH-019_A055 ECO Rank 3 25-Apr-2018
- Make SCP2, SFTP2 and SFTP-SERVER2 observe the setting of the
TCPWARE_SFTP_DEFAULT_FILE_TYPE_REGULAR at all points that files
could be accessed. SSH-018_A055 ECO Rank 3 30-Jan-2018
- When the logical TCPWARE_SSH_RADIUS_TRUNCATE_USERNAME is defined in
the system logical name table, usernames will be truncated before
any underscore (_) present in the name before attempting RADIUS
password authentication. SSH-017_A055 ECO Rank 3 29-Jan-2018
- Correct attempts to open /dev/random and /dev/urandom that can cause
problems on systems that have a logical for dev defined.
SSH-017_A055 ECO Rank 3 29-Jan-2018
- Modification to SSHD2 and SSH2 to support SSH Group Exchange Key
Exchange (RFC 4419), so the the correct minimum level of security
can be maintained for RSA2048-SHA256 certificates.
SSHB_V602P033 ECO Rank 3 21-Nov-2017
- Modification of SSHD2 to support of LOAD_PWD_POLICY and
VMS$PASSWORD_POLICY callouts with PWDMIX on systems that support
PWDMIX. Note that the VMS$PASSWORD_POLICY callouts must NOT write to
SYS$OUTPUT or attempt to read from SYS$INPUT as these channels are
used for network communication and doing so will cause problems.
Writes to SYS$ERROR will appear in the SSH_LOG:SSHD.LOG for the
session. SSH-016_A055 ECO Rank 3 8-Nov-2017
- Modification of SSHD2 to prevent CAPTIVE or RESTRICTED usernames
from creating tunnels. SSH-016_A055 ECO Rank 3 8-Nov-2017
- Modification to SSHD2 and SSH2 to support X509v3-rsa2048-sha256
certificates for host key exchange. (RFC 6187)
SSHB_V602P033 ECO Rank 3 31-Oct-2017
- Modification of SSHD_MASTER to allow for control of the timeout of
the connection id with the logical TCPWARE_SSH_CONNECT_ID_TIMEOUT.
This logical should be defined to a VMS delta time before SSH is
started. Modification requires restarting of SSH to take effect.
If the logical is not defined, or not a VMS delta time, then the
default value of 1 minute (0 00:01:00.0) is used.
SSH_V602P028 ECO Rank 3
- Modifications to SSHD2 such that it can read unencrypted certificate
keys for system autentication with certificates without having to
process the keys & certificates with the certificate utilities.
- Elliptic curve Diffie-Hellman (ECDH) key agreement [RFC 5656]
Curves: nistp256, nistp384, nistp521
The curve chosen will be sufficient to support the hash for
the host keys involved. This means that if the host key is
ECDSA-nistp521, only the nistp521 curve will be available, an
ECDSA-nistp384 key will have nistp384 and nistp521 available,
and ECDSA-nistp256 will have nistp256, nistp384 and nistp521
available.
- Elliptic curve digital signature algorithm (ECDSA) [RFC 5656].
Public keys are written in a format close to what is used by OpenSSH
and OpenSSH public keys can be read as is. The "Subject" and
"Comment" lines in the key may need to be removed to make the keys
readable by OpenSSH. The curves supported are:
nistp256, nistp384, nistp521
- Advanced Encryption Standard running in Galois/Counter Mode
(AES-GCM) [RFC 5647], as modified by OpenSSH to resolve a
potential ambiguity as the encryption and message authentication are
both provided by a single algorithm. In this case the ciphers are
named:
aes128-gcm@openssh.com, aes256-gcm@openssh.com
- New MACs: SHA-256, SHA-384 and SHA-512 [RFC 6668]. These can be used
with any ciphers, except the gcm ciphers, which provide both
encryption and MAC functionality.
- The implementations have been built with OpenSSL LIBCRYPTO 1.0.2j
and have been tested with OpenSSH 7.2p2.
The following problems are fixed by this ECO:
o Fix problems in SFTP2 when transfering files from VMS to non-VMS when
a transfer mode was not set.
SSH-014_A055 ECO Rank 3 20-Jul-2017
o The format of the /ASCII qualifier on the SCP2 command line has been
expanded to allow for the specification of separate source and
destination newline sequences such as /ASCII=(SOURCE=VMS,DEST=UNIX).
Old syntax (/ASCII=UNIX) is the same as /ASCII=(DEST=UNIX). This
requires that the new USER.CLD be used to set the commands in the
command tables. Use the following command line to save these as the
system command tables:
$ set command/table=sys$common:[syslib]dcltables.exe -
/output=sys$common:[syslib]dcltables.exe tcpware:user.cld
$ install replace sys$library:dcltables
SSH-013_A055 ECO Rank 3
o Changes to SFTP2 and SFTP-SERVER2 to fix problems with CD and files
named .; in the directory. SSH-012_A055 ECO Rank 3
o Changes to debugging output in SCP2 to make it more like earlier
patches. SSH-011_A055 ECO rank 3
o Map two different status code groups used in SFTP2 into a single one
to resolve problems with SFTP2 sometime returning unexpected
completion status when operating in batch mode.
SSH-010_A055 ECO rank 3
o Correct a potential memory leak in SFTP2. SSH-010_A055 ECO Rank 3
o Additional checks in SFTP2 to detect a freed data structure and reduce
the chance of an ACCVIO. SSH-010_A055 ECO Rank 3
o Correct problems with waiting for connection to terminate from
OpenSSH. SSH-061_A054 ECO Rank 3
o Add checking to a connection run-down routine to see if a data
structure has been freed before using it. This corrects an error that
could show up as STKOVF or ACCVIO. SSH-060_A054 ECO Rank 3
o Increase the number of sessions on ia64 systems to 5000. The system
may encounter tuning or performance limitations before this number is
reached. SSH-058_A054 ECO Rank 3
o Synchronize status returning with process termination when the logical
TCPWARE_SSH_COMMAND_OLD_STYLE is defined so that the status of the
executed command is returned. Note that this will make it such that
the output includes the out of process termination as if "LOGOUT/FULL"
had been done. Command termination may also be delayed, typically for
1 second.
SSH-057_A054 ECO Rank 3
o Correct a build problem in SCP2, SFTP2, and SFTP-SERVER2 for AXP
systems running OpenVMS V7 and V8 that are accessing large files.
Improve end of transfer detection.
SSH-057_A054 ECO Rank 3
Correct a potential looping problem in SSHD2.
SSH-057_A054 ECO Rank 3
o Modify the requirements for a translatable file to include all files
with variable and veriable-fixed control records, and not restrict it
to just the files that have carriage-return carriage control as well.
SSH-056_A054 ECO Rank 3
o Define the system wide logical TCPWARE_SSH_NO_LEADING_SPACE_NEWLINE
to prevent an space & newline from being written out before the users
command on remote command execution.
SSH-055_A054 ECO Rank 3
o Correct a communication problem between SSH2 and SCP2/SFTP2.
SSH-054_A054 ECO Rank 3
o Return correct success/fail status for SCP commands initiated from
systems using OpenSSH and other implementations that do RCP over
SSH for an SCP command.
SSH-054_A054 ECO Rank 3
o Correct a problem with client (SCP/SFTP) processes hanging.
SSH-053_A054 ECO Rank 3
o Correct a problem with processes hanging in RWMBX state.
SSH-052_A054 ECO Rank 3
o Improve detection of data in mailbox.
SSH-051_A054 ECO Rank 3
o Correct a coding error in SSH-049_A054.
SSH-050_A054 ECO Rank 3
o Correct a problem when attempting to write to a mailbox that is full.
SSH-049_A054 ECO Rank 3
o Improve reporting of EOF when translating VMS text files to stream-lf.
SSH-048_A054 ECO Rank 3
o Don't return EOF for attempts to read zero bytes by SFTP-SERVER2.
SSH-047_A054 ECO Rank 3
o Modify SCP2 and SFTP2 so that they do not post read requests that
start after the end of file.
SSH-046_A054 ECO Rank 3
o Correct a problem in SFTP2 where the path string is duplicated.
SSH-046_A054 ECO Rank 3
o Increase SFTP-SERVER2 polling frequency for the parent so that it
recognizes loss sooner and reduces the amount of time it can consume
system resources.
SSH-045_A054 ECO Rank 3
o Improve communication of shutdown request from SSHD2 to SFTP-SERVER2.
SSH-045_a054 ECO Rank 3
o Correct a problem on Alpha/AXP systems with transferring files larger
than 2GB. There are no changes for VAX or ia64 systems.
SSH-044_A054 ECO rank 3
o Correct a potential deadlock condition between SSHD and subsystems.
SSH-042_A054 ECO rank 2
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This kit also includes the following changes from previous ECO kits:
o Correct a data corruption issue in VMS transfers introduced in
SSH-032_A054. [SSH-033_A054]
o Performance improvments for TCPWARE_SSH_ACCESS_AUTHORIZATION
processing. [SSH-033_A054]
o Provide the logical TCPWARE_SFTP_OPEN_AS_BINARY, which can be
defined to Yes, True or 1 to cause the SFTP server to open files in
binary mode instead of Stream-LF. [SSH-032_A054]
o Correct an ACCVIO in SCP2 and SFTP2 that can be experienced when
copying very small files to a VMS system. [SSH-031_A054, DE 11324]
o Provide more flexibility in how user access authorization is done
for the various access modes. [SSH-031_A054, DE 11272]
When the logical TCPWARE_SSH_ACCESS_AUTHORIZATION is defined
/system user authentication checking will take place separately
from action authorization checking. The value of the logical will
be used to determine whether or not the desire action is allowed at
this time. The value of the logical should be a string of the format:
SHELL=,EXEC=,SUBSYSTEM=
where is one of NETWORK, LOCAL, REMOTE. If one of SHELL,
EXEC, or SUBSYSTEM is omitted, then that type of access will not be
allowed at all.
o Correct a possible crash.
[DE 11254]
o Correct an error in displaying the VMS format of the path in SFTP2.
Note that this change requires both the client and the server to be
running this patch for the correction to work. If the server is
running an older patch a fallback method is used to format the path to
VMS and it may result in errors.
o Correct an error when attempting to do a MKDIR or RMDIR in VMS mode.
[DE 11249]
o Change a lock to be node specific as the resource that it is
controlling is node specific. This will reduce the effect on one node
in a cluster being busy from causing problems on connection startup on
other members of the cluster. Also modify the process startup look to
recognize when it hasn't found an open slot in the active process
database and return an error instead of endlessly looping.
[DE 11250]
o Make public key authentication work regardless of the case that
the username is passed in.
[DE 11252]
o Correct a problem with the possibility of a command issued from a Linux
system causing a hang.
[DE 11256]
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Post-Installation Instructions
A system reboot is required after applying this ECO.
TCPware ECO,
Process Software