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Utoxin
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PostPosted: Mon Jun 10, 2002 4:22 pm    Post subject: Unkown Usernames on my system Reply with quote

I just glanced at /etc/passwd and there are two unfamiliar usernames in there that are in the 1000's, where 'normal' users are supposed to go.
Quote:
meekrob:x:1000:100::/home/meekrob:/bin/bash
apache:x:1001:407:apache:/home/httpd:/bin/false
verwilst:x:1002:100::/home/verwilst:


I'm familiar with the apache user, but are meekrob and verwilst created by some process that I don't know about? Or should I worry about a possible security breach?
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delta407
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PostPosted: Mon Jun 10, 2002 4:29 pm    Post subject: Reply with quote

Look at their home directories and see what you can see. Google says nothing common about either, so this doesn't look good. Ye may have been r00ted.
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Utoxin
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PostPosted: Mon Jun 10, 2002 4:35 pm    Post subject: Reply with quote

I just had a thought... I used the new 1.3a tarball, so I'm going to check that and see if they're included in that.
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Utoxin
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PostPosted: Mon Jun 10, 2002 4:38 pm    Post subject: Reply with quote

Just checked. That's where they're from. So no worries.
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delta407
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PostPosted: Mon Jun 10, 2002 4:38 pm    Post subject: Reply with quote

What's particularily bothersome is that meekrob actually has a shell -- daemon users don't. Also note the group IDs, they're each 100 (users), which daemons don't have either.
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delta407
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PostPosted: Mon Jun 10, 2002 4:41 pm    Post subject: Reply with quote

Utoxin wrote:
So no worries.


Run passwd on each anyway. Seems like a slip-up in 1.3a packaging, to me, but it could allow someone access to your machine (and many others).
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Utoxin
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PostPosted: Mon Jun 10, 2002 4:46 pm    Post subject: Reply with quote

Way ahead of you. ;)
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delta407
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PostPosted: Mon Jun 10, 2002 4:47 pm    Post subject: Reply with quote

Quote:
Way ahead of you.


Good. Are you going to report this to bugs.gentoo.org or should I? :)
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klieber
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PostPosted: Mon Jun 10, 2002 4:49 pm    Post subject: Reply with quote

delta407 wrote:
What's particularily bothersome is that meekrob actually has a shell


meekrob and verwilst are both developers on the Gentoo project -- what you're seeing is likely an oversight. Before people start screaming about conspiracies and backdoors, this is likely an honest mistake that someone made -- forgetting to remove a user account before something made it into production. (of course, I think 1.3a is still in development...)

Regardless, you should probably file a bug on this on bugs.gentoo.org. (after ensuring that no one else has already filed a similar bug. :))

--kurt
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Utoxin
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PostPosted: Mon Jun 10, 2002 4:50 pm    Post subject: Reply with quote

I'll go ahead and file it.
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delta407
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PostPosted: Mon Jun 10, 2002 4:52 pm    Post subject: Reply with quote

klieber wrote:
delta407 wrote:
What's particularily bothersome is that meekrob actually has a shell


meekrob and verwilst are both developers on the Gentoo project -- what you're seeing is likely an oversight. Before people start screaming about conspiracies and backdoors, this is likely an honest mistake that someone made -- forgetting to remove a user account before something made it into production.


Yes, but delta407 also said:
delta407 wrote:
Seems like a slip-up in 1.3a packaging, to me, but it could allow someone access to your machine (and many others).


klieber wrote:

Regardless, you should probably file a bug on this on bugs.gentoo.org. (after ensuring that no one else has already filed a similar bug. :))


Me, Utoxin, or someone else?
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klieber
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PostPosted: Mon Jun 10, 2002 5:12 pm    Post subject: Reply with quote

delta407 wrote:
Yes, but delta407 also said:
delta407 wrote:
Seems like a slip-up in 1.3a packaging, to me, but it could allow someone access to your machine (and many others).


I never said it wasn't a problem. I agree that it is bad. I merely stated it probably wasn't intentional.

klieber wrote:
Me, Utoxin, or someone else?


Someone who's willing to take up the cause.

--kurt
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delta407
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PostPosted: Mon Jun 10, 2002 5:17 pm    Post subject: Reply with quote

klieber wrote:
I merely stated it probably wasn't intentional.


And I agreed with you :)

klieber wrote:
Someone who's willing to take up the cause.


Bugzilla has been notified.
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klieber
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PostPosted: Mon Jun 10, 2002 5:24 pm    Post subject: Reply with quote

delta407 wrote:
And I agreed with you :)


Ah -- I understand now. Sorry -- I didn't mean you when I talked about conspiracies. I was just speaking in a general sense. Often times, hysteria can overwhelm common sense when these kinds of bugs are discovered. :)

Anyway, thanks for filing the bug -- please let us know if you get a response. I'd be curious to know the resolution of this issue.

--kurt
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Utoxin
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PostPosted: Mon Jun 10, 2002 6:38 pm    Post subject: Reply with quote

Since the bug report has been filed, I went ahead and just used userdel to remove the users from the system entirely.
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Chemtux
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PostPosted: Mon Jun 10, 2002 10:21 pm    Post subject: Reply with quote

For 1.3a you have to send a bug-report by email to bart verwilst directly
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