bugtraq - Re: minor apache htpasswd problem

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Date: Thu, 25 Sep 2003 23:06:05 +0200
From: p@....at
To: bugtraq@...urityfocus.com
Subject: Re: minor apache htpasswd problem

Hi,

I wrote about that to security@...che.org in January. No response either.
Would be surprised if not a whole lot of other people noticed it as well.
A 2.0.x version I checked back then had the same problem iirc.


Thought they'd fix it at some point. 

Philipp Krammer



On Thu, Sep 25, 2003 at 10:25:05PM +0200, Andreas Steinmetz wrote:
> This is valid for the htpasswd utility of at least apache 1.3.27 and 1.3.28:
> 
> The salt used for password generation solely depends on the current 
> system time:
> 
> (void) srand((int) time((time_t *) NULL));
> ap_to64(&salt[0], rand(), 8);
> 
> This causes all passwords generated within the same second to have the 
> same salt value. This in turn may cause auto-generated default passwords 
> to have the same value which could be a point of attack if the password 
> file is not properly protected.
> 
> The apache team was notified on 23.08.2003 but didn't respond.
> 
> Though it would need quite some administrative errors before the above 
> could be used it should still be corrected.
> -- 
> Andreas Steinmetz
> 

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