Hi Shiroma,

Is it block by Smart Defense ?
Does any log show in the SmartView Tracker "Smart Defense" tag ?
It can show more information then the "All" tage.

I found the Check Point KB sk26010.
It is talking about "Malformed SSL packet" and Smart Defense.

May be you can try it ~ XD

It said : Under VPN protocols section of SmartDefense interface, remove the 
check from "Block SSL null-pointer assignment" and install policy.

Moreover, how is your current rule setting now ?
The service field is "Any" or new design "SSL" protocol ?


Thanks !

Regards,

Little Lun


--- 2009年3月11日 星期三,Shiroma Dassanayake <[email protected]> 寫道﹕

> 寄件人: Shiroma Dassanayake <[email protected]>
> 主題: Re: [FW-1] Malformed ssl packet
> 收件人: [email protected]
> 日期: 2009 3 11 星期三 下午 1:41
> Hi Checkpoint gurus
>  
> Thanks JP/Mark for the suggestions. I tried out both
> workarounds, but the error still persists (attack name:
> invalid ssl packet
> > SSL v3: malformed packet (field lengths do not
> match)). Any other ideas?
>  
> Regards
> Shiroma
> 
> --- On Wed, 3/4/09, Jean-Paul Baillon
> <[email protected]> wrote:
> 
> From: Jean-Paul Baillon
> <[email protected]>
> Subject: Re: [FW-1] Malformed ssl packet
> To: [email protected]
> Date: Wednesday, March 4, 2009, 12:53 PM
> 
> Better still create a new https service (possibly call it
> https_none)
> and set the protocol type to none - use this service for
> your skype voip
> rule
> 
> Doing it this way will not disable protocol checking for
> https in your
> other rules with https defined
> 
> JP
> 
> -----Original Message-----
> From: Mailing list for discussion of Firewall-1
> [mailto:[email protected]] On
> Behalf Of Mark
> Elsen
> Sent: Wednesday, 4 March 2009 11:43 PM
> To: [email protected]
> Subject: Re: [FW-1] Malformed ssl packet
> 
> > Dear Checkpoint gurus
> >
> > When attempting to access skype (non-voip acces has
> been allowed for a
> selected group of individuals), we are unable to connect.
> On checking
> the tracker logs, https packets to one of the Skype IPs are
> being
> dropped with this message:
> >
> > attack name: invalid ssl packet
> > SSL v3: malformed packet (field lengths do not match)
> >
> > Where in smartdefence can the actions for this attack
> be modified?
> >
> > Regards
> > Shiroma
> >
> 
>  - Check the Advanced Properties of the https service : set
> protocol
> type to -> 'None'.
> 
> This will disable in-depth checking of SSL transactions.
> 
> M.
> 
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