Bug#446956: CVE-2007-5469 toll fraud and authentication forward attack

Julien BLACHE jblache at debian.org
Wed Oct 17 09:33:56 UTC 2007


Daniel-Constantin Mierla <daniel at voice-system.ro> wrote:

Hi,

> Practically, the check can be done in all versions of openser>=1.0.0,
> but a bit more complex. The update in the SVN just eases the check, by
> making the digest URI directly available via a pseudo-variable.

That's what I thought too...

> The solution of letting the check in config file is to give more
> liberty in performing it. Imagine that the proxies are behind a load
> balancer, and the R-URI is changed by the LB, in that case all auth
> will fail. The admin can add the initial R-URI in a special header at
> LB and in the proxy compare that value with the digest URI. Embedding
> this check in auth modules seemed too rigid.

Indeed.

I think someone's been a bit too trigger-happy with the CVE
assignment. I'll upload packages patched with SVN rev 2852 if the
security team feels it's necessary, otherwise I'm perfectly happy with
just closing that bug report.

JB.

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 Julien BLACHE <jblache at debian.org>  |  Debian, because code matters more 
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