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Re: Request to Update OpenSSH Version in Git due to Security Vulnerabilities (CVE-2006-5051, CVE-2024-6387

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
Jul 22, 2024, 09:38 UTC
Message-ID
<a658fd0a-59bd-c162-874c-cc5b9926acd5@gmx.de>
In-Reply-To
<25ce4ec25b054cfbf4c540663c6b6c18@manjaro.org>
Hi Dragan,
On Wed, 10 Jul 2024, 'Dragan Simic' via Git Security wrote:
Show 22 quoted lines
> On 2024-07-10 19:10, Junio C Hamano wrote:
> > Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:
> >
> > > The crucial part is the `sshd` part. Git for Windows does distribute the
> > > `sshd.exe` binary, but it is in no way used by default, nor is there
> > > support how to set it up to run an SSH server.
> > >
> > > Git for Windows is therefore not affected by this vulnerability, and
> > > therefore it is not crucial to get a new version out as quickly as
> > > possible. See also my assessment at
> > > https://github.com/git-for-windows/git/issues/5031#issuecomment-2199722969
> >
> > I think I've seen in the past another inquiry about vulnerability
> > in OpenSSH, which turned out to be irrelevant in the context of Git
> > for Windows for this exact reason (i.e. "sshd" is problematic but
> > "ssh" is OK).
> >
> > Would it make future confusion like this less likely if you stopped
> > shipping the sshd and ship only the ssh client?
>
> Not shipping sshd.exe would make sense regardless of the associated security
> issues, because it would prevent accidental enabling of SSH access.

There is little accidental about starting `sshd` after generating a valid host key.

Having said that, `sshd` is not required to run Git, therefore it should not be distributed with Git for Windows. This PR addresses that: https://github.com/git-for-windows/build-extra/pull/571

Thank you, Johannes

Previous: Dragan SimicNext: Dragan Simic
Message 4 of 5 in “Re: Request to Update OpenSSH Version in Git due to Security Vulnerabilities (CVE-2006-5051, CVE-2024-6387”
  1. Johannes SchindelinJul 10, 2024
  2. Junio C HamanoJul 10, 2024
  3. Dragan SimicJul 10, 2024
  4. Johannes SchindelinJul 22, 2024
  5. Dragan SimicJul 23, 2024

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