similar to: Small issue with DNSSEC / SSHFP

Hi list, I use ssh a lot and I often need to connect to hosts whose host key has changed. If a host key of the remote host changes ssh terminates and the user has to manually delete the offending host key from known_hosts. I had to do this so many times that I no longer like the idea ;-) I would really like ssh to ask me if the new host key is OK and if I want to add it to known_hosts. I talked

Well, known_hosts isn't exactly trusted input, since it's usually composed of the keys you first encounter, without any additional checking, as opposed to (hopefully) correctly signed SSHFP records. On Sat, Feb 23, 2019 at 10:22 PM Peter Stuge <peter at stuge.se> wrote: > > Yegor Ievlev wrote: > > > I think it's a very bad idea to have the client start treating

https://bugzilla.mindrot.org/show_bug.cgi?id=2022 Bug #: 2022 Summary: ssh segfaults when using ldns, SSHFP, a DNSSEC-enabled resolver and a CNAME Classification: Unclassified Product: Portable OpenSSH Version: 6.0p1 Platform: All OS/Version: All Status: NEW Severity: normal

> I replaced the ldns code with getdns. Works fine for more than a year now. > I am interested in how you did that. Would you mind sharing your procedure? > I don't think anybody cares. I tried to tell people. But that had no > effect. > There certainly is not as much talk about it as I would expect there to be.

Have you seen this? https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=742513 --mancha

https://bugzilla.mindrot.org/show_bug.cgi?id=2022 --- Comment #2 from Darren Tucker <dtucker at zip.com.au> --- Patch applied, thanks. I still don't understand how it gets into this state since the space should be allocated immediately beforehand: if (rrset->rri_nsigs > 0) { rrset->rri_sigs = calloc(rrset->rri_nsigs,

https://bugzilla.mindrot.org/show_bug.cgi?id=2022 Damien Miller <djm at mindrot.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED --- Comment #5 from Damien Miller <djm at mindrot.org> --- Set all RESOLVED bugs to CLOSED with release

Hi, I submitted a patch back in November of 2009 to add local validation of DNSSEC record to openssh. I recent updated the patch for 5.8, and figured I do a little marketing while I'm at it. :-) Someone had previously submitted a patch which simply trusted the AD bit in the response, which is susceptible to spoofing by anyone who can inject packets between the resolver and the client. Our

https://bugzilla.mindrot.org/show_bug.cgi?id=2119 Bug ID: 2119 Summary: SSHFP with DNSSEC ? no trust anchors given, validation always fails Product: Portable OpenSSH Version: 6.2p1 Hardware: Other OS: Linux Status: NEW Severity: enhancement Priority: P5 Component:

I've built NUT 2.8.0 from source. When the nut-monitor runs: fopen upsmon.pid fails. I'm running as root, upsmon has root:root permissions as well as the other daemons and .conf files. I've tried configuring with and without --prefixpath --prefixaltpath. Is there something I am missing? Please see attached. Dan -------------- next part -------------- An HTML attachment was

When connecting to a host for which there's no known hostkey, check if the relevant key has been accepted for other hostnames. This is useful when connecting to a host with a dymamic IP address or multiple names. --- auth.c | 4 ++-- hostfile.c | 42 ++++++++++++++++++++++++++++-------------- hostfile.h | 8 ++++++-- sshconnect.c | 39 +++++++++++++++++++++++++++++++++------

NUT 2.8.01 When I pull the USB cable from the UPS, I get two notifications of the nocomm-timer expired. The first notification is in the proper sequence, the second notification occurs after 'commok' occurs. Seems somehow that upssched-cmd is getting a second nocomm-timer expired delayed. Dan -------------- next part -------------- An HTML attachment was scrubbed... URL:

The attached patch implements a feature that would make my interaction with ssh somewhat more secure. When connecting to a host whose key is not in the known_hosts file, this patch makes ssh tell the user about any other hosts in the known_hosts file that have the same key. For example, if I have host A in my known_hosts file, and try to connect to host B which is an alias for A, ssh will tell

Now that upsstats.cgi works, I've noticed that dummy-ups changes state every 5 minutes between OL and OB (probably when the 300 second timer expires). The UPS state stays online. Also "online" and "onbatt" are broadcast to the console probably via WALL. (The state changes don't seem to be form the ups as upsshed-cmd doesn't run). Upssched-cmd does run when the UPS

Hello. Subramanian Moonesamy has gotten the ball rolling to include Ed25519 in IANA's registry for SSHFP key types [1]. I've opened a bug report [2] that includes a patch that adds the needed support code and provisionally assigns Ed25519 a value of 4 (values 1,2,3 reserved for RSA, DSA, and ECDA, respectively) [3]. The enhancement request/bug is meant to keep the issue on the radar.

Steps to reproduce: 1. Run a SSH server with default configuration and point a domain to it. 2. Add SSHFP record to the domain, but only for Ed25519 key. 3. Attempt to connect with VerifyHostKeyDNS set to yes, but the rest of settings set to defaults. 4. OpenSSH defaults to ECDSA instead of Ed25519 and refuses connection because there is no ECDSA fingerprint in SSHFP records. A stopgap solution

https://bugzilla.mindrot.org/show_bug.cgi?id=2223 Bug ID: 2223 Summary: Ed25519 support in SSHFP DNS resource records Product: Portable OpenSSH Version: -current Hardware: All OS: All Status: NEW Severity: enhancement Priority: P5 Component: ssh Assignee: unassigned-bugs at

Hi, I was sure I sent this to openssh at openssh.com, but cannot find that email now in my Sent mailbox, so I am sending it to the developers list. I took a liberty and wrote an I-D with accompanying patch (with contributions from Ondrej Caletka) to support ECDSA in the SSHFP DNS resource record. The I-D is here: https://tools.ietf.org/html/draft-os-ietf-sshfp-ecdsa-sha2 (and the source XML

https://bugzilla.mindrot.org/show_bug.cgi?id=2041 Priority: P5 Bug ID: 2041 Assignee: unassigned-bugs at mindrot.org Summary: Check for SSHFP when certificate is offered. Severity: enhancement Classification: Unclassified OS: All Reporter: ondrej at caletka.cz Hardware: All Status: NEW

Hi, is it possible to use SSHFP DNS records to enable password-free host-based login? What I already got working is to use SSHFP DNS records to verify the server host keys. debug1: found 2 secure fingerprints in DNS debug1: matching host key fingerprint found in DNS But hostbased login does not work and I still need to supply a password to log in. (Or to configure a known_hosts file on the