Re: SIDs 41338 and 41340 - FILE-IMAGE Adobe Acrobat Pro malformed JPEG APP1 segment out of bounds memory access attempt

[Charlie Dyer <charlierwdyer () gmail com>]

I won't be able to do that but below is a small subset of URLs that
triggered the alerts.
Presumably the browser requesting these files means these alerts aren't
anything to worry about, as the related CVEs are to do with Acrobat Reader
and Acrobat DC right?

www.minitorque.com/forum/customavatars/avatar7001_1.gif
disclaimer.akbank.com/images/disclaimer19.jpg
www.metoffice.gov.uk/media/image/0/q/surfacepressurechart.jpg





On Fri, Jan 20, 2017 at 5:35 PM, Al Lewis (allewi) <allewi () cisco com> wrote:

> Hello Charlie,
>
> Do you have a pcap of the traffic that produced some of these false
> positives?
>
>
> Thanks.
>
> *Albert Lewis*
>
> ENGINEER.SOFTWARE ENGINEERING
>
> SOURCE*fire*, Inc. now part of *Cisco*
>
> Email: allewi () cisco com
>
> From: Charlie Dyer <charlierwdyer () gmail com>
> Date: Friday, January 20, 2017 at 12:07 PM
> To: "snort-sigs () lists sourceforge net" <snort-sigs () lists sourceforge net>
> Subject: [Snort-sigs] SIDs 41338 and 41340 - FILE-IMAGE Adobe Acrobat Pro
> malformed JPEG APP1 segment out of bounds memory access attempt
>
> Hi list
>
> The number of false positives these two rules produce is huge!
> Has anyone else seen the same or amended the rule to be a bit more
> specific to the exploit,i.e. user agent is Acrobat Reader or something so
> it's a bit more specific.
>
> Any thoughts gratefully received
>
> Charlie
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