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

learn more… | top users | synonyms

6
votes
2answers
53 views

Could an attacker prevent IIS from logging requests

I've had an attacker try to gain access to one of my websites through a form using what looks like a blind SQL inject. It is a huge form, and every possible permutation of values has been tried - in ...
1
vote
3answers
127 views

Trouble understand login vulnerabilities

I'm testing my own web page with the following vulnerabilities. #1: Form escapes ' to \' So if a user tries to enter the following information: username: 'or'1=1 password: m username will ...
-1
votes
3answers
120 views

Is it possible to perform a MITM attack with a smartphone?

Will be possible to perform a MITM attack using a smartphone? If yes, that is very dangerous. Is it really a danger attack? Shorted : Is possible to perform a useful MITM attack to a victim using a ...
2
votes
1answer
44 views

DNS Rebinding attack - does this attack require victim to use an attacker's DNS server for resolution? How will that happen?

Usually a preferred DNS server will be set in router's configuration and it will be either the organization's server or some trusted public server. So how would attacker get the victim to use his DNS ...
3
votes
1answer
159 views

POODLE vulnerability in Safari

I have been trying to mitigate POODLE on client side in my organization. I disabled SSL3 in most browsers but couldn't disable it in Safari. Apple released a Security Update 2014-005, which, ...
18
votes
5answers
17k views

Can I detect a MITM attack?

Based on this question here: Are "man in the middle" attacks extremely rare? Is it possible to detect man-in-the-middle attacks, and if so, how would one go about it? In addition, what if ...
0
votes
1answer
192 views

Router detecting constant ack flood attacks and port scans

I first noticed this yesterday in my logs - while I was configuring the router settings, so I don't know how long it's been going on. What should I do? I reconfigured my router with more secure ...
1
vote
0answers
67 views

How can I launch DHCP starvation attack in WLAN?

In WLAN, due to MAC association on Access Point (AP), I can't send the DHCPDISCOVER messages using random MAC addresses. But if I keep my original MAC address as the source ethernet MAC a and random ...
1
vote
1answer
123 views

Detecting web app attacks by parsing log files [duplicate]

Following up on this question as the answers are now 5 years old: Can I detect web app attacks by viewing my Apache log file? My boss has tasked me with analyzing our access.log and error.log files ...
2
votes
4answers
207 views

What would you call an attack where authenticated user modifies other users information on web app?

Authenticated user on web app, using other people's id to update or change their information. So basically the web app is not checking for person who is logged in against the person who he/she is ...
9
votes
4answers
5k views

In light of the FREAK TLS vulnerability, why do so many servers still offer RSA-EXPORT keys?

Ars Technica is reporting on a new attack against HTTPS. Called FREAK, the devices reported as vulnerable include iPhones, Android devices, and Macs running OS X. The attack (as has been clarified ...
3
votes
1answer
85 views

How it is dangerous that the ntp service listen to all IPs on Linux?

When I run the following command I get that the following output: netstat -atpun | grep ntp udp 0 0 172.16.0.1:123 0.0.0.0:* 7734/ntpd udp ...
4
votes
1answer
461 views

POODLE and TLS…not SSL

In December there was a new attack surface of POODLE against TLS 1.0 (think this also covers 1.1 and 1.2?). Anyway, as a system administrator for Windows Server 2008/2012 what can we do do prevent ...
-2
votes
1answer
132 views

Possible Injection to PHP PDO

Expert says that PDO is one of secure scripting from mysql injection. I have read the manual about it and do some little research. And here, I'm trying to get ID value from URL paramater, as in: ...
2
votes
1answer
94 views

Prevent cold boot attack on running laptop by overwriting ram [closed]

I'd like to use my laptop as a recording device when I leave home, but there would still be the possibility for a cold boot attack or with DDR3 RAM even warm boot attack is possible as I have read. ...
4
votes
5answers
4k views

Is there a method to detect an active man-in-the-middle?

Suposing an attacker that has gained access to the router. Is there a way, for the victim, to notice that is being attacked? I think one of my friends is a victim of this kind of attack. How can I be ...
17
votes
2answers
3k views

JavaScript Injection using Man in the Middle Attack

Suppose I am connected to a wifi-hotspot hosted by a malicious attacker. Further, suppose that I am accessing a login page of an fictitious email site tmail.com over insecure HTTP connection. My ...
0
votes
2answers
60 views

Does preventing buffer overflow attacks prevent ROP attacks?

Would preventing buffer overflow attacks prevent Return Oriented Programming (ROP) attacks?
1
vote
1answer
69 views

What are the traces of a mysql attack on a server when the attacker has full permissions?

I just turned my server off yesterday, after it began to distribute comment spam across the internet, at an astounding rate over 70 "spams"/min, bottom of the line 1/2 gig ram VPS. I'm still trying to ...
6
votes
2answers
1k views

Using skype for an attack

I am curious about something; let's say someone randomly added me to Skype and tried to initiate a chat with me and I want to know more about them but I am worried if they can do some damage. My ...
0
votes
1answer
87 views

Sniffing external networks from a public network (place)

There is something that I can not understand. If you are preparing, building up an attack from a public place (coffee shop, restaurant ect.). How can you be tracked by law enforcement? I'm asking ...
2
votes
2answers
246 views

If I send 4mbps of data to a friend with 4mbps connection, will I DDoS him?

Suppose my friend has a connection of 4mbps. If I just send him 4mpbs of random data with my server, wouldn't it block his connection? Even if the router has firewalls and closed ports, isn't enough ...
2
votes
3answers
268 views

FIN Attack- What is this type of attack really?

I just wanted to know what exactly is the FIN attack. I know about the FIN flag that is used to indicated the closing of a connection via TCP. But what exactly is FIN attack?
-7
votes
1answer
257 views

How to hack a device if i have thier MAC address [closed]

My wifi is used by many people so i have no proper solution against them ! I can see thier mac address. I want them to stop using my wifi ..
7
votes
3answers
4k views

Why is it so hard to trace origins of DDOS attacks?

According to the July 2009 cyber attacks Wikipedia article, US & South Korean governments suffered a DDOS attack on their websites. However, up till now they have not been able to find any ...
0
votes
2answers
197 views

Google Analytics: Hacked or Ghost Referers?

I posted this question (Hacked or Ghost Referers) on Google groups earlier today, but I also wanted to see if the security experts here have any insight into this behavior. I've got a web application ...
7
votes
7answers
2k views

Facebook account keeps getting hacked, can't seem to figure out why or how?

One of my mate, she has a lot of friends on Facebook, uses it for marketing. Her account keeps getting broken into. Her password gets reset and/or gets locked for changing resetting password too many ...
52
votes
7answers
17k views

SQL injection — why isn't escape quotes safe anymore?

Raw SQL When you're writing SQL -- for anything that takes human input really, a lot of things have been done to avoid the injection. Everyone that's heard of SQL injection knows that (I'm going to ...
3
votes
2answers
195 views

Why would an attacker try to guess random email usernames on a small domain?

My mail server has recently come under a very bizarre attack. Every five to ten minutes, a new IP connects to SMTP, attempts to try weird usernames (like pil, bennett, netscape, msfuser, desktop, ...
7
votes
1answer
172 views

What is the name for this type of URL attack?

Say a PHP page accepts URL path as a POST parameter (like the answer to this question): $path = $_POST['url_path']; file_get_contents('http://example.com' . $path); A maliicious user POSTs ...
2
votes
2answers
142 views

How can an attacker access a system with a private IP address? [closed]

I am confused about this concept if a public IP is assigned to my router and my system has private IP address, how an attacker can access my system or can use my system as a BOT. Its a common scenario ...
-1
votes
2answers
317 views

DoS and Hacking [closed]

Based on the top rated answer to this question: Is showing your IP address in the URL a bad practice? I'm curious to know if a DoS attack is consider 'hacking' or simply an 'attack.' I think ...
5
votes
3answers
66 views

Attributing attacks

Neophyte here. I didn't find much googling around, so I was hoping maybe someone here could point me in the right direction towards some literature that discusses this in more depth. It's ...
1
vote
1answer
290 views

POODLE vulnerability solution : Effect on customer or client side

I am using windows server 2008 R2 and I have lot of customers who use windows XP,7 and 8 with some of them still using IE6. So now I want to disable SSL3 and enable TLS 1.1 as a security measure for ...
4
votes
3answers
569 views

An attack from my Employer

I am working in an ISP company as a junior support specialist. Recently, I have a serious suspicions that one of our "head" stuff member is compromising me by being able to control(see) my traffic.. ...
0
votes
1answer
97 views

Why use one URL for all “pages” on my site?

I have heard that I should (A) use one URL for all "pages" on my site, such that what page is shown is determined by the session state, and (B) don't use an extension like .php. One curious fellow ...
3
votes
1answer
87 views

Does TLS fallback only keep from downgrades to SSLv3?

I have read the RFC on this and can't seem to find what I am wanting to know. When implemented, if a client and a server support TLS fallback protection, does it only keep them from downgrading to ...
-6
votes
1answer
56 views

network IDS capabilities for attack detection [closed]

Is a Network Intrusion Detection System (NIDS) (pattern matching, protocol analysis or behavior analysis) able to detect buffer overflow in the network traffic?
1
vote
1answer
78 views

How can the sybil attack be used on a P2P system that implements DHT?

I was reading about the sybil attack and am unclear on some details. After becoming part of the peer-to-peer network, the adversary may then overhear communications or act maliciously. By ...
-1
votes
1answer
199 views

Hack to change the webpage of a website? [closed]

Recently, there is a website by Malaysia Airline got hacked and their main page has been defaced, below is a link to that article ...
23
votes
6answers
21k views

Security risk of PING?

I have been told that PING presents a security risk, and it's a good idea to disable/block it on production web servers. Some research tells me that there are indeed security risks. Is it common ...
1
vote
2answers
62 views

CSRF Implementation

I am working on website,where I want include csrf checks by using referrer checks,will this be sufficient way to protect the form from csrf attack? if not what an attacker can do to bypass it?
1
vote
2answers
137 views

Does “Magic Numbers” weaken encryption?

I was wandering at superuser and I found this question: Compress and then encrypt, or vice-versa? Nearly all files have a Magic Number at a certain position in them. So, I wonder if I can attack (to ...
1
vote
3answers
1k views

Wife was conned into allowing her computer to be hacked, what do I do? [closed]

My wife had a popup on her old Windows Vista laptop (which I've been threatening to switch to Ubuntu Linux). It appeared to come from our ISP, and informed her that she was hacked, and to call a ...
0
votes
2answers
687 views

DNS Cache Poisoning as a Foil to SSL

I recently learned a bit more about DNS cache poisoning, and my understanding of the basic way it works is by editing the DNS cache so that when the victim types in, say, www.google.com they get the ...
1
vote
2answers
88 views

Reasonable source of old proof-of-concept attacks

I am relatively new to the area of cyber security but have a reasonable knowledge of several programming languages, assembly (x86 in particular) and scripting. In light of the recent Shellshock and ...
0
votes
2answers
152 views

Monitor SSH traffic

Hi Folks, I was monitoring my SSH port with tcpdump and have had a lot of activity as expected. When I look at the traffic I get the above image. What does it mean? Thanks
0
votes
1answer
70 views

Have i been phished? [closed]

I recently opened a link from a "friend", while I was on my workplace. It was some really simple stupid game "Super Mario" type. I opened it, played for 10 seconds and closed the link. What felt ...
0
votes
1answer
54 views

MITRE's UEFI 'Extreme Privilege Escalation' and HP's SureStart [closed]

This is MITRE's powerpoint presentation version of their report: http://www.mitre.org/sites/default/files/publications/14-2221-extreme-escalation-presentation.pdf Page 54 is a straight pull from HP ...
2
votes
0answers
85 views

Case Studies of high profile hacks [closed]

Every hack happens because of a form of security vulnerability or another, and I feel that the best way to avoid/fix these vulnerabilities is to learn about them. Is there anywhere on the internet ...