An attempt by a threat to exploit a weakness in a system.

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-3
votes
0answers
69 views

How does a person fully secure his home IT infrastructure [on hold]

I'd like to know how to set my router to only let ten specific IP-MAC addresses through? Also if the Windows 7 OS & 8 OS can be set so that malware/spyware cannot operate to give permissions to ...
1
vote
1answer
43 views

Different types of DDoS attacks [on hold]

What is behavior of UDP flood, TCP SYN flood, Ping of Death and Smurf attack?
2
votes
2answers
107 views

Does the CVSS impact score correspond to probability?

From http://nvd.nist.gov/cvsseq2.htm, I noticed that the CVSS standard attributes the following impact values ​​for confidentiality, integrity and availability: 0 for none impact, 0.275 for ...
-5
votes
1answer
62 views

Make really personalised wordlist file

i want to make a really customised wordfile with: 4 letters first + 2 numbers example: divo11 or yeve11 And not like this: p0oiw1 or u4hf3e This wordfile is really important. How can I do it?
1
vote
3answers
181 views

Unknown hijacker/popups on the browser

I was cleaning my father’s laptop which was recently infected by a fairly tenacious piece of malware. It hasn't given any great clues as to what it is named or anything of that sort and thus far ...
1
vote
1answer
38 views

LogJam hardening OpenSSH and testing it [duplicate]

I would like to harden my OpenSSH (clientsite) after the LogJam attack. I read this article https://weakdh.org/sysadmin.html and there is one paragraph, which says how to do that. Is this enough and ...
-1
votes
0answers
52 views

Do you know any tip to accomplish this xss? [closed]

I have the following scenario: Test A: https://target/srv;?q=pwn%0Aalert(1);//&ref=B The result: <script type="text/javascript"> if ("pwn alert(1);//" != "") ...
15
votes
3answers
3k views

Example of a backdoor submitted to an open source project?

To clarify immediately, I'm not interested in writing a backdoor. I have no interest in submitting backdoor changelists to projects myself. I'm researching some source modeling techniques, and we're ...
5
votes
1answer
147 views

Kaminsky Bug DNS Cache Poisoning

I'm trying to use Kaminsky DNS cache poisoning method. I'm using bind9 server on ubuntu and static port. So far I achieved to insert a line into DNS cache which is ;additional www.blalba.com 80000 ...
-1
votes
1answer
151 views

My domain has got hacked/defaced by a group of hackers. What should I do next? [closed]

I don't know if this is the right forum to ask this but I have a domain hosted (shared hosting) on godaddy.com and it has been hacked/defaced by a group of Bangladeshi hackers. Note that it is just a ...
9
votes
5answers
586 views

Is there anything I can do about IDN homograph attacks?

I have been reading about IDN homograph attacks, and I cannot think of any better way than Tell my users not to trust emails asking for passwords, etc Buy all domains similar to mine (expensive and ...
1
vote
1answer
228 views

My Ipv6 is under attack by the smurf6?

when i go to whatsmyip.org under my host name i get "Your.Ipv6.Is.Under.Attack.By.The.Smurf6.Info" what does this mean? I'm using private internet access as my vpn so i'm guessing PIA is under some ...
1
vote
3answers
59 views

How can hackers access WordPress usernames? [duplicate]

Recently I've had brute force attack attempts on some of my WordPress sites and the attackers are using actual usernames other than the default admin (which was removed). How is it possible for them ...
1
vote
2answers
168 views

Attack using weird characters followed by some javascript in a URL?

I'm seeing a very weird attack this morning from a pile of VPS instances spread out across the US. The URLs look like this: /js/bundles/,!0):this.element.propAttr( ...
2
votes
1answer
64 views

What sort of attack can reset MySQL Privileges and unmount remote drives without root or shell?

ATTACK VECTOR Monthly hits via a globally DDoS attack. Resolved with Cloudflare. Attacker can now somehow unmount network drive links and reset MySQL user permissions for applications. Attack is ...
1
vote
1answer
43 views

Strange 'agetty' process running on my VPS.

Recently, I had to reinstall one of my VPS servers (again), due to malware. I took what I considered to be pretty good security precautions. I also locked the root account and am using sudo as well. ...
4
votes
2answers
378 views

How to check if my usb drives are vulnerable by BAD USB

Mark pointed out that only one chip type is vulnerable to BAD USB, id like to check if mine are, am using only Kingston flash drives here so can you tell me if they are, or if there exists a list ...
1
vote
1answer
71 views

What this type of attack called? (gaining peripheral information)

When the intruder looks at the transmitted data and finds information about the sender and the receiver of the data or other peripheral information that won't help him hack the system but know more ...
1
vote
2answers
99 views

How effective is antivirus software? [duplicate]

On one hand, most antivirus websites claim their products are highly effective, and I've seen antivirus "test" videos claiming 95%+ detection rates for new malware (as in less than a day old, not old ...
0
votes
0answers
19 views

How to recursively extract a zip bomb? [migrated]

I downloaded the famous 42.zip zip bomb and was able to extract it in my computer without my system crashing. Then I realized that in order to see the effects of the bomb, I will need to recursively ...
1
vote
3answers
169 views

Passwords propagation, Password Trend and Word Generator in Human Mind

Some passwords like "123456", "admin" are outrageously popular, so are the leet transformations and concatenation of digits. The users seem to pick up the password suggestions or just copy the ...
4
votes
1answer
103 views

Ideas on how I can fragment captured network traffic?

I am trying to create a lab environment where I can analyze common IDS solutions (starting with Snort specifically) and their ability to reassemble fragmented IP trains. I have a collection of ...
2
votes
1answer
46 views

Who first introduced the notion of attack graphs?

I've been searching the literature and haven't been able to pin it down. The concept probably existed long before the name was coined, but who is the invention/introduction of attack graphs attributed ...
1
vote
1answer
77 views

Is CVE-2013-2566 a practical attack against RC4 or still conceptual?

Is CVE-2013-2566 a practical attack against RC4 or still conceptual and does it only apply to WPA/TKIP?
-1
votes
0answers
17 views

What will be the implications of Security Headers when not configured on a web server?

If a web server is not being configured with Security headers,Does it mean an Application provider internally have defensive mechanisms by using IDS/IPS/Firewall ? Not sure about which adds more ...
1
vote
1answer
48 views

Login from a desktop application to a web application

I have a desktop application and a web application. The user is loged in on the desktop application. With a click on a button or something the browser should open and the user should be logged in. ...
2
votes
1answer
455 views

Facebook iOS SDK Authentication

The Facebook iOS SDK only needs your bundle & app IDs of your iOS app to match those of your Facebook app. If I find out an app's app ID, can't I just create another iOS app with that app's ...
5
votes
1answer
118 views

Video site requests Adblocker to be shut off, next day I have 3 “weird” bookmarks

I was on a site trying to view a video and the site requested that I turn off my adblocker to view the video. So I did and then the next day I noticed that I had 3 "weird" bookmarks in my bookmark ...
2
votes
2answers
88 views

nmap detects opened port but can't connect with telnet

I've made an scan to one single IP with nmap and it reports that the port 65301 is opened, and even it detects that it's maybe the service pcanywhere. sudo nmap -p 65000-65535 -sV x.x.x.x Starting ...
0
votes
1answer
70 views

When can the exploit for CVE: 2006-7098 be used?

I'm studying the vulnerabilities of an old version of Apache, the 1.3.34. And I don't quite understand in what exact situation the CVE 2006-7098 vulnerability can be exploited. The README included in ...
6
votes
3answers
271 views

Random URL string: What kind of attack is this, and what can be done to stop it?

I work for a company that has a public facing website for our customers. In the past several weeks, we have been seeing a series of log entries that look like this: The controller for path ...
1
vote
2answers
156 views

Break in attempts from secureserver.net

Over the last few weeks I have seen dozens if not hundreds of break-in attempts from ip addresses which map back to secureserver.net. I know these are GoDaddy machines from the who is look up. ...
4
votes
4answers
240 views

Attack where browser URL appears valid

I remember reading about an attack where the "location bar" in a user's browser displays a valid URL (e.g. https://www.paypal.com/), but the traffic is really being directed to or intercepted by an ...
0
votes
0answers
39 views

Wifi Pineapple :Modifying white list by client

If wifi pineapple maintains a whitelist with specific ssid's, then it responds to only those ssid probes.Is there any method or tools by which I can access/modify/interact with wifi pineapple's white ...
1
vote
3answers
2k views

What is a salami attack?

Can someone give a clear definition of a Salami Attack? In the book Security in Computing (4th Edition) by Charles P. Pfleeger. It is stated as a attack to data integrity and I quote the passage: ...
1
vote
2answers
54 views

Potential worm damage on a physically isolated Tor system

I'm setting up a physically isolated Tor system (with one computer serving as the workstation and another as a Tor gateway), and I'm concerned about methods a worm could use to infect my OS. In the ...
26
votes
1answer
3k views

What is an n-day security attack?

There are several attacks types in computer security. For instance, zero-day attacks consist of attacks that use undisclosed exploits. In contrast, what is an n-day attack? Is it a security concern?
3
votes
2answers
278 views

Is it possible to get malware through an incoming video/audio stream? (e.g. Omegle, Skype etc.)

just a quick question. Is it possible for incoming video/audio streams to contain malware etc. through exploits in the transfer of the video/audio? Thanks in advance.
0
votes
0answers
53 views

Buffer overflow and register contents?

I am doing an exam practice question, suppose I have a function like; void func(char* arg) { char buf[32]; strcpy(buf, arg); } command break func: -buf begins at 0xbffebfb0 -(gdb) x/2wx ...
0
votes
1answer
127 views

Which systems in a network are able to spoof a TCP handshake?

I am reviewing for my final exam tomorrow, I came across a past exam question. An attacker wants to initiate a TCP handshake with a target to make him think E initiated it, attacker knows IP ...
0
votes
2answers
114 views

Would my protocol be safe?

Suppose I have a protocol like the one below between users A and B; -A sends random nonce G1 to B -B sends back hash_k(G1) and random none G2 -A verifies hash_k(G1), then sends back hash_k(G1 | ...
12
votes
6answers
5k views

Index page has been compromised, suspicious files are showing up

My website has been hacked lately and it has been defaced. Now I have weird files, don't know where they coming from. I just want to know, what of these files are harmful or can cause that I get ...
0
votes
2answers
53 views

Is there any possibility that a trusted CA can perform a man in middle attack? [duplicate]

Is there any possibility that a trusted CA can perform a man in middle attack? Since the CA certificate is installed and trusted by the browser it will never raise a warning message. Hope my doubt ...
-2
votes
1answer
53 views

Are exploits 1:1 with vulnerabilities? [closed]

I know that for the most part, there are some small differences between thoughts on a lot of matters in terms of definitions in security. What I am asking about is whether exploits are considered to ...
9
votes
0answers
879 views

Attackers of Google DNS hijacking

As we know Google DNS server (8.8.8.8) in 14th and 15th March was hijacked in Sao Paulo. And subsequent to this event, BGPmon.org announced an alert. Now, In a course assignment, we are asked to ...
0
votes
0answers
26 views

Apache.exe trojan attack on xp server, wiped it with a linux install am i safe? [duplicate]

Hello I ran a apache web server on a windows xp pc on my home network. My antivirus picked up an attack, but didn't prevent it. It seems I had a Trojan attack on my apache.exe that got through. I know ...
42
votes
7answers
9k views

Should I change the default SSH port on linux servers?

Is there any advantage in changing the SSH port, I've seen people do that, but I can't seem to find the reason why. If you have a strong password and/or a certificate, is it useful for anything? ...
1
vote
3answers
650 views

What is this for a Request?

i see the following request-string (see complete example below) with the same request_parameters, but differing values, hitting all our sites/wafs. the scheme is always the same: ...
-6
votes
1answer
108 views

How to attack on a web page to gain username and password? [closed]

In a situation where a web page is not using SSL and someone wants to attack to gain the username and password. How it can be done? Given the situations: Passwords are not stored in plain text. ...
-1
votes
4answers
235 views

My wifi has been hacked [closed]

The hacker has complete control of my computer; opening and shutting programs at will. Deleting files that display the remote user ip address. We have changed the password several times; but no ...