Serious bug in ubiquitous OpenSSL library: "Heartbleed"
laszlo at heliacal.net
Tue Apr 8 19:14:57 UTC 2014
You can still potentially access all the same information since it all goes through the load balancer. Interesting bits of info are things like Cookie: headers being sent by clients and sitting in a buffer. Try one of the testing tools mentioned and see if you can see any info from other clients. It's almost like having remote tcpdump on the web server - you can copy down the in-memory process image.
On Apr 8, 2014, at 7:12 PM, "Frank Bulk" <frnkblk at iname.com> wrote:
> If we would front our HTTPS services with a (OpenSSL vulnerable)
> load-balancer that does the SSL work and we just use HTTP to the service,
> will that mitigate information loss that's possible with this exploit? Or
> will the OpenSSL code on the load-balancer also store or "cache" content?
> -----Original Message-----
> From: Paul Ferguson [mailto:fergdawgster at mykolab.com]
> Sent: Tuesday, April 08, 2014 12:07 AM
> To: NANOG
> Subject: Fwd: Serious bug in ubiquitous OpenSSL library: "Heartbleed"
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
> I'm really surprised no one has mentioned this here yet...
> - - ferg
> Begin forwarded message:
>> From: Rich Kulawiec <rsk at gsp.org> Subject: Serious bug in
>> ubiquitous OpenSSL library: "Heartbleed" Date: April 7, 2014 at
>> 9:27:40 PM EDT
>> This reaches across many versions of Linux and BSD and, I'd
>> presume, into some versions of operating systems based on them.
>> OpenSSL is used in web servers, mail servers, VPNs, and many other
>> Writeup: Heartbleed: Serious OpenSSL zero day vulnerability
>> Technical details: Heartbleed Bug http://heartbleed.com/
>> OpenSSL versions affected (from link just above): OpenSSL 1.0.1
>> through 1.0.1f (inclusive) are vulnerable OpenSSL 1.0.1g is NOT
>> vulnerable (released today, April 7, 2014) OpenSSL 1.0.0 branch is
>> NOT vulnerable OpenSSL 0.9.8 branch is NOT vulnerable
> - --
> Paul Ferguson
> VP Threat Intelligence, IID
> PGP Public Key ID: 0x54DC85B2
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