similar to: 48-hour incompatibility window in OpenSSH CVS Repository

In message <Pine.LNX.4.30.0104031615270.8678-100000 at holly.crl.go.jp>, Tom Holro yd writes: >SRP has different requirements from Diffie-Hellman. In particular, >for SRP the generator must be primitive. It turns out that the "primes" >file contains only safe primes with primitive generators, and is thus >ideal for SRP, but so far in OpenSSH it has only been used for

Trying to connect to a Dell iDRAC 6. The iDRAC reports it is running OpenSSH 5.2. From Fedora Linux 20 with OpenSSH 6.4p1, connections succeed. From Fedora Linux 23 with OpenSSH 7.2p2, connections succeed. From Fedora Linux 27 with OpenSSH 7.6p1, connections fail prior to prompting for a password. The message is, "Received disconnect from (IP address) port 22:11: Logged out." Trying

all but one lan host (gv)can ssh connect to host 2x Included windows 10, several linux. 2x is a solaris host. That problem host (gv) can connect to all others but 2x. 2x can connect to all other encluding the problem host (gv) So gv ssh to 2x throws this error: ssh_dispatch_run_fatal: Connection to 192.168.1.42 port 22: incorrect signature. 192.168.1.42 is 2x. So incoming ssh from gv to 2x

Hello everyone.. I am fairly new to the patching format.. so I just decided to post a basic info about how to remove group1 and group14 diffie key exchange in OpenSSH. I know that they are listed as required in RFC 4253 but I don't want a client to have the choice to use a 1024 bit prime for the key exchange. If someone is getting into my system.. they should upgrade to a new client. I am a

https://bugzilla.mindrot.org/show_bug.cgi?id=2291 Bug ID: 2291 Summary: ssh -Q kex lists diffie-hellman-group1-sha1 twice Product: Portable OpenSSH Version: 6.7p1 Hardware: Other OS: Linux Status: NEW Severity: minor Priority: P5 Component: sftp-server Assignee:

Hello, It seems to me the algorithm negotiation of the transport layer has a bug, it does not follow the specification of draft-ietf-secsh-transport-24, page 19, where the behaviour of first_kex_packet_follows is specified. I've got an ssh client that sends an SSH_MSG_KEXINIT message and specifies only 'diffie-hellman-group1-sha1' as key exchange algorithm. It sets

A few questions regarding the OpenSSH support for the Diffie Hellman key exchange algorithms: (1) Are the diffie-hellman-group-exchange-sha256", "diffie-hellman-group-exchange-sha1" , "diffie-hellman-group14-sha1" "diffie-hellman-group1-sha1" (as defined in RFCs 4253 and RFC 4419) the complete list of key exchange algorithms supported by OpenSSH? (2) Is there a

On Fri, Jan 26, 2024 at 7:24?PM Jochen Bern <Jochen.Bern at binect.de> wrote: > On 25.01.24 14:09, Kaushal Shriyan wrote: > > I am running the below servers on Red Hat Enterprise Linux release 8.7 > > How do I enable strong KexAlgorithms, Ciphers and MACs > > On RHEL 8, you need to be aware that there are "crypto policies" > modifying sshd's behaviour,

Can we disable diffie-hellman-group14-sha1 too? On Thu, Feb 14, 2019 at 10:23 PM Mark D. Baushke <mdb at juniper.net> wrote: > > Hi John, > > The short answer is YES. > > Jon DeVree <nuxi at vault24.org> writes: > > > I ask because the removal of diffie-hellman-group-exchange-sha1 happened > > accidently in 7.8 due to a mistake in a change to

On Tue, 3 Apr 2001, Niels Provos wrote: > Paul, something is broken in your openssh install. Definately. But is it the client or the server? I've sent it to the portable OpenSSH bug address. I'm using OpenSSH 2.5.2p2-1.7 on a RedHat 7.0 with all updates. Sometimes I can login fine, and sometimes I can't. It actually seems to almost alternate,

I just installed 'openssh-6.5p1' on a Solaris 10 system, and when attempting to 'ssh' anywhere as anybody from the 'root' account, I get a segmentation fault. Debug output as 'root': kraken:/opt/local/src/security/openssh-6.5p1# ./ssh -vvv mimir OpenSSH_6.5, OpenSSL 1.0.1f 6 Jan 2014 debug1: Reading configuration data /etc/ssh/ssh_config debug3: cipher ok:

Darren Tucker <dtucker at zip.com.au> writes: > On Tue, Nov 8, 2016 at 2:43 PM, Harry Putnam <reader at newsguy.com> wrote: >> Darren Tucker <dtucker at zip.com.au> writes: >> >>> On Tue, Nov 8, 2016 at 1:02 PM, Harry Putnam <reader at newsguy.com> wrote: >>> [...] >>>> gv harry> ssh -vv 2x >>>> >>>>

https://bugzilla.mindrot.org/show_bug.cgi?id=3184 Bug ID: 3184 Summary: Unable to add deprecated KexAlgorithms back for host via config file Product: Portable OpenSSH Version: 8.2p1 Hardware: All OS: All Status: NEW Severity: major Priority: P5 Component: ssh

Hi, I have a strange problem with a freshly installed Centos7 desktop (most8pc25). I can't ssh to 2 CentOS6 servers, even with firewall disabled on the client and on the server. But I can connect from the server to the client, all in the same VLAN. I can also ssh from this desktop to centos7 servers in the same VLAN or in another VLAN. No idea about this problem. On the server kareline

Greetings, I am trying to cross compile OpenSSH 4.7 for ppc with QNX Neutrino as my OS. I have a workstation with QNX on it (x86) and I have linked the utils used by autoconf to their ppc versions. I have been able to successfully build sshd/ssh. I copy the binaries built on the x86 to the ppc, and sshd works great. I can ssh from any machine to it, but when I try to ssh from the ppc machine to

Thread split from my previous communication. Here is the integrity logs on the platform. I had to cut this should due to the length of the logs (5Mb). ***************** failed-regress.log ************ trace: test integrity: hmac-sha1 @2900 FAIL: unexpected error mac hmac-sha1 at 2900: Bytes per second: sent 65665.7, received 55994.0. trace: test integrity: hmac-sha1 @2901 FAIL:

Il giorno gio 22 nov 2018 alle ore 21:24 Stuart Henderson <stu at spacehopper.org> ha scritto: > > On 2018/11/22 19:55, owl700 at gmail.com wrote: > > Hi, I have compatibility issues with the latest version of > > openssh-server and an old dropbear client, the dopbear client stops at > > preauth > > > > ov 22 14:34:03 myhostname sshd[3905]: debug1: Client

Hello all, I have recently had cause to dig a little into the specifics of how diffie-hellman-group-exchange-sha256 group sizes work. The belief in the wild, perpetuated by multiple sources of logjam mediation papers and also Andras Stribnik's very influential piece "Secure Secure Shell", is that server operators can force the use of a minimum group size by removing moduli

I have been contacted by some people who are having a problem with transfer files using OpenSSH 4.1p1 with the HPN patch. I've taken a look at their problem and I don't think its a problem with the HPN code so I thought I would bounce it over here to see if anyone here has some insight. In brief the connection is dying without spitting out an error message during the key exchange. Of

https://bugzilla.mindrot.org/show_bug.cgi?id=1197 kpimm at yahoo.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |kpimm at yahoo.com --- Comment #7 from kpimm at yahoo.com --- I'm having likely the same problem as halsteaw. Can someone please