Ubuntu Networking :: Ettercap / Certificate - Turn Off SSL Attack In Ettercap When Not Interested In SSL Information?
Mar 4, 2010
I have been playing with Ettercap on my home network, learning about packet forwarding and all such things. Recently, after doing some certificate stuff, Ettercap is performing the SSL attack where it sucks out the password of a user after it issues a fake certificate. How do I turn off the SSL attack in ettercap when I'm not interested in SSL information?
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Aug 17, 2010
I used to have ettercap on backtrack 4 and everything was ok...But on ubuntu 10.04 I'm having this issue; it is not showing passwords (if i log in for example in a forum with a http link )and not sending false certificate (if i try to log in in https links, after uncommenting the redir ip tables in etter.conf).Other features seems to work alright (such as dns spoofing) and the arp poisonning is succesful. Besides, Wireshark gets the passwords.
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Jul 3, 2011
for dns spoofing in my local network (one laptop and a router switched), but that does not work. An access to a specified site does not redirect.If you need any details, The command I use is:
Code:
#ettercap -T -q -i eth0 -P dns_spoof -M arp // //
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Nov 29, 2010
My Host Lists of Ettercap is empty when I try to sniff my Lan. I modified /etc/etter.con, obtaining this:
Code:
# if you use iptables:
redir_command_on = "iptables -t nat -A PREROUTING -i %iface -p tcp --dport %port -j REDIRECT --to-port %rport"
redir_command_off = "iptables -t nat -D PREROUTING -i %iface -p tcp --dport %port -j REDIRECT --to-port %rport"
and the error is this:
Code: iptables v1.4.6: can't initialize iptables table `nat': Permission denied (you must be root)
Perhaps iptables or your kernel needs to be upgraded. I lunch ettercap as root.
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Aug 6, 2011
I goggled a lot on how to get ettercap working on ubuntu, but unfortunately wasn't able to find anything good.
So, i decided to make a new post about it.
1. The GUI mode crashes after scanning for hosts.[ Fixed by downloading the version by timothy]
2. After Scanning, When you start Sniffing, and run the chk_poison plugin it says no poisoning at all . Why, i am not able to poison it at all?
3. Running the original ettercap in text mode(-T), also gives the error , if you uncomment the two lines required for SSL sniffing, then you are met with error saying that you don't have enough permission to and suggest that i should either upgrade iptables or my kernel[I am sudo]. O.o?
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Dec 10, 2010
I have Ubuntu 10 installed.
I have installed ettercap using:
Code:
sudo apt-get install ettercap
But I cannot see it in any of the Ubuntu Menus(Aplications-->Network etc).
If I type
Code:
ettercap
[Code]....
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Jun 23, 2011
I can not manage to get any passwords on my network with Ettercap.I have followed several tutorials but I still seem to have no luck in getting them.I have BT5/KDE/32bit installed and using an alfa network adapter (RTL8187).First I configured etter.conf script to look as below:
ec_uid = 0 # root is the default
ec_gid = 0 # root is the default
# the command used by the remote_browser plugin
[code]...
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Feb 25, 2011
How can I create an ettercap log ?, how can I read it with etterlog command ?.
And how different new version of etterlog and etterlog v0.6.6 ?. How can I get ettercap v0.6.6 manual ?
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Jul 30, 2010
i downloaded ettercap and wireshark but when i ever i press scan for hosts after doing the things before it doesn't scan it just gives me
Randomizing 16777215 hosts for scanning...
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Nov 8, 2010
ettercap can see http request but not response
I'm trying to see regular http responses from my wireless ipad (victim) from my wired pc (attacker). Everything's working great but I can only see the http requests not the responses.
I've done much reading and googling and tried registering in more relevant forums but some forums were shutdown, so I've come here.
Code:
# setup ip forwarding
echo 1 | sudo tee /proc/sys/net/ipv4/ip_forward
# use ettercap to do the mitm using only mitm
sudo ettercap --iface eth0 --text --plugin autoadd --only-mitm --mitm arp:remote /192.168.0.1/ /192.168.0.155/
[Code]....
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Aug 3, 2010
I am using fedora 13 and have installed ettercap from Add/Remove Software in Fedora. But when it is starting(Application->Internet->ettercap), it is not able to detect any interfaces ( i am using eth0 interface, wired lan ).
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Mar 4, 2011
I have installed ettercap using apt. But, when I scan for hosts, Ettercap crashes. I've found on the Web that there's a solution, but I don't manage to solve this problem.
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Aug 3, 2010
I am using fedora 13 when i am starting ettercap, i get following warning and when i clicked "scan host" , the program quit after scanning hosts due to some segmentation fault...here is warning
Code:
[piyush@localhost ~]$ sudo ettercap-gtk
ettercap NG-0.7.3 copyright 2001-2004 ALoR & NaGA
(<unknown>:2315): GLib-GObject-WARNING **: gsignal.c:3079: signal name `depressed' is invalid for instance `0x9f9ee00'
[code]....
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Jan 27, 2011
I am using unbuntu as root. I've made all the edits to my etter.conf file as follows:
[privs]
ec_uid = 0
ec_gid = 0
and:
remote-browser = "firefox -remote openurl (http://%host%url)"
I also turn on ipTables. I then start my attack as follows:
ettercap -T -Q -M arp:remote -i eth1 /client-ip/ // -P remote_browser
echo 1 > /proc/sys/net/ipv4/ip_forward
ettercap -T -Q -M arp:remote -i eth0 /target_ip/ /gateway_ip/ -P remote_browser
My problem is Firefox only shows https:// pages and not regular pages like google. I'm stumped. I have no clue why. I've tried other versions of linux. Different computers and still the same result. If I turn quiet off I see in my terminal all the traffic.
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Mar 24, 2010
a client asked me to install ettercap on their linux gateway machine - two ethernet machine. I tried it in bridged mode, it but as soon as I start it, the traffic stops and no one can access anything. Did anyone ever succeed in running it on the gateway?
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Jun 2, 2010
I've been using ettercap for awhile now for testing the security of the websites I manage for others along with home network stability and I've recently come across this issue:
When running:
Code:
ettercap -G
I get an error in the terminal saying:
Code:
Dissector "dns" not supported (etter.conf line 70)
I proceed to select my interface and scan for all hosts, then ettercap crashes, exits and outputs the infamous message:
Code:
This shouldn't happen...
Segmentation Fault...
recompile in debug mode, reproduce the bug and send a bugreport I took a look at line 70 in my etter.conf file and it looks like this:
Code:
dns = 53 # udp 53
I've searched online and it seems like others have this issue as well, but I can't seem to resolve it.
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Jan 4, 2011
I am quite new to Linux. Just some basic information, I am using windows xp but have installed vmwork station and am running Red Hat enterprise linux 4.
When i run ./configure it gives me this error. "configure: error: libnet >=1.1.2.1 not found "
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Jun 7, 2011
I was troubleshooting an error with my email and in the course of it chose to ignore a faulty SSL certificate. (I've reported it to the ISP in question.)Now that I want to remove that override command, I can't work out how to do it.where Evolution stores this setting so that I can remove it?
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Mar 24, 2011
As the release of elite slackware is nearly there, I will order some stuff from the slackware store. Until now I plainly donated via paypal since in my opinion the shipping costs for software that can be acquired thru downloading is way to high: I rather support Pat than UPS.
Anyway: If there are dutchies that like to share the shipping costs, I'm willing to pay for the national distribution ones the stuff from the overseas arrives. I'm thinking about the DVD sets and the other goodies from the slackstore.Let me know (in this topic) if you are interested. Detailed questions about payment options and adresses per PM please!
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Aug 3, 2011
I want to test syn flood attack in my pc
but i dnt know how to generate it, can you tell me
how to generate syn flood attack in pc
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Aug 24, 2011
I'm trying to install an Ubuntu cloud on my home network - I've been following this guide. When I arrived at STEP 6: Install an image from the store PART 3: Click on the Store tab I get the following error message on the page: Error 60: server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
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Apr 9, 2010
I need to learn how to analyze network traffic for attacks and while finding the attack seems easy in my case I need to identify what hes doing. I will be happy right now if you guys can answer my question. How to identify if an attack has brought the server down? I have packet captures of an attack in progress and I noticed that every now and then the attacker would do something weird and the server would start sending packets with just the RST packet sent in response. Normally I had been seeing the RST ACK flags set or the FIN ACK bits set to terminate a connection. So once again my question is how do I tell if the traffic indicates a server crash?
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Oct 28, 2010
At home, I can easily connect to my home network with ubuntu. But at school, things are differently. The wireless security is tighter, and I need more then just my username and password to connect.
(See attachment for Screenshot)
The last two lines, okay, but I seem to need a certificate, and that MSCHAPv2, Anonimous identity. I don't understand what I need to enter in those fields. I only got a username and password from school and that's all I need for windows. So why does Ubuntu want/need more info?
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Oct 15, 2010
The collage I am going to has a secure wireless net work that we are suppose to be able to log into with a user name and password they give us. They have instructions on how to connect with windows and mac, but not for linux.There tech support has not been any help and I have tried quit a few different combinations but with no luck.
According to their instructions for windows their net work uses WPA-Enterprise for security type, and PEAP. They do not seem to use any root certification authorities, and they have you unchecked "validate server certificate".At [URL]there is some similar thing were you can see screen shots, but I cannot follow these because I do not know what "CA Certificate" to use. Is there a way to do it with out a "CA Certificate"?
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Oct 26, 2010
Security Type: WPA2-Enterprise
Encryption Type: AES
Network Authentication mode:
Microsoft: Protected EAP (PEAP) - Unvalidated Server Certificate
User must authenticate log-on. Its a wireless network. how to set this up for Ubuntu.
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Jan 24, 2011
I am trying to connect to wireless in my office from my ubuntu. I checked with IT - as per them our office is using Acess Point networking. On a Windows machine I need to go to some URI in Internet explorer and request a certificate and then install the same.
I tried doing the same from firefox , but not sure how to proceed further. We dont have any WEP key etc. I tried fiddling with vaious other methods like LEAP, importing the certificate from windows etc.
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Sep 28, 2010
I have a site in India that needs to be accessed by our offices round the world. I have added AllowUsers lines for the static IP's in those offices. However, we also have a couple of people who travel and don't have static ip's. Is it possible to enable both AllowUsers for the offices and have certificate access for the others?
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Aug 27, 2010
I'm at the AirPort. I can't connect with Linux but can connect with Windozzze. In Linux I get: You have received an invalid certificate. Please contact the server administrator or email correspondent and give them the following information: Your certificate contains the same serial number as another certificate issued by the certificate authority. Please get a new certificate containing a unique serial number (Error code: sec_error_reused_issuer_and_serial). The page you are trying to view can not be shown because the authenticity of the received data could not be verified.
The airport requires that one look at a login message and agree to its terms before making any other connection: that's what I can't get and can't get further. Up-to-date Slackware, latest kernel (self-built), Atheros wireless chipset, eMachines e725-4250 laptop. I've connected here before, always in Linux.nl. Who's objecting? This is in Firefox the only browser with Javascript I have. What certificate are they talking about? I just downloaded Opera: it works. It detects the defective certificate and asks if I want to proceed. How do I get Firefox to do that? Should I move this message to a different forum?
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Sep 3, 2009
I'm trying to write a program which would get information from a webpage and display the information on my desktop sort of like a widget. I kind of remember there being something like this already made, but for the life of me I can't remember what it's calledDoes anyone know?
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Nov 4, 2009
I have Ubuntu 9.04, and a HP laserjet 1018 printer.
I install the printer using:
And when it ask me about plugin I give the path to it. (the 3.9.2 version of the plugin, because Ubuntu 9.04 has the 3.9.2 version of hplip)
well I install the printer, everything works perfectly.....but, when I turn off the PC, and turn it on again, the printer does NOT work!, I send work for being printed but mothing happens , Ubuntu tells me that the job was printed but ... no case, my printer does not print it.
I have to install it again since cero. what can I don to stop install it every time I turn off the computer ?
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