Re: Bug: ssh-copy-id mishandles dropbear

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Am So., 29. Sept. 2024 um 00:20 Uhr schrieb <piticu.pulii@xxxxxxxxx>:
>
> On Fri, Sep 27, 2024 at 04:35:22PM +0200, Norbert Lange wrote:
> > ssh-copy-id has special handling for dropbear, but this seems to be
> > quite out of date (or forever wrong).
> > I dont see dropbear ever accessing `/etc/dropbear/authorized_keys`,
> > and I don't see any hints this ever was the case.
> >
> > dropbear uses ~/.ssh/authorized_keys just like OpenSSH, so the special
> > handling needs to go.
>
> the dropbear in openwrt and its knockoffs (i.e. 99.9999% of actual dropbear
> installations) does use /etc/dropbear/authorized_keys for the root user.
>
> https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=package/network/services/dropbear/patches/100-pubkey_path.patch;h=0ecca900b44ca944cb9ecd5d6c62735a27cfb2a9;hb=HEAD

K, that explains it. Its already fixed in 9.4, forgot I use an older
version at work:
https://github.com/openssh/openssh-portable/commit/bdcaf7939029433635d63aade8f9ac762aca2bbe

> and btw, just looking at the dropbear source code (and at that patch, too LOL)
> should turn someone off from using it anywhere, ever.
>
> just saying

really helpful, especially the specifics of the critism. Sounds a bit insecure.

Norbert
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