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

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2answers
32 views

How would an attacker know the Gateway IP's of 2 VPN endpoints?

My office has two Sonicwall Routers each at a different physical location and with two different ISPs. There is an SSL-VPN tunnel between the two. Today I noticed that the same Chinese IP address ...
0
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1answer
48 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 ...
7
votes
5answers
1k views

What Man-made Physical Threat Could Pose Severe Danger to a Server Farm?

I am writing a novel in which a researcher attempts to work against a study he is a part of by purposely sabotaging operations on the research compound. I am wondering if the following is plausible. ...
-3
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0answers
34 views

What is the best small zombie program or application can use as a zombie for practice? [on hold]

I used Backtrack as an attacker and Sift as a victim, but I don't know what is the best and smallest program or application I can use as a zombie ?
1
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2answers
130 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: ...
14
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2answers
807 views

Distance between two passwords

It is known that people reuse their passwords across different sites. The reuse can be done in two ways: using exactly same password for two different sites, slight modifying the password of one ...
1
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1answer
35 views

Are there theoretical attacks against ECC Digital Signatures?

I was asked to do a research about attacks on various digital signature schemes. There is one thing that bothers me for which I could not find a direct answer. For digital signatures that are based ...
-4
votes
1answer
42 views

how make some attack to my own honeypot [on hold]

I would like to finding attacks with my honeypot, to do this I have installed honeyd on my Ubuntu which is installed on Vmware. how can I make some attack myself? is there any downloadable file for ...
1
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0answers
107 views

Is the process Wslxrqjet.exe, tagged 'Google Chrome', malicious?

Multiple instances (between 3 and 15) of this of this process Wslxrqjet.exe are running on my Windows 8 system at all times. Windows Task Manager 'Description' field for all instances is "Google ...
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0answers
24 views

Possible to run snort without modifiers?

Is there anyway (e.g some command line argument) with which we can tell snort to run and perform detection but without caring for the rule modifiers if there are any ? e.g alert tcp any any -> ...
0
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0answers
17 views

Smurf attack with Echo Protocol(RFC 862)

The Echo Protocol provides a feature like the ICMP-echo feauture. It's just a little bit different. The server sends an exact copy of the data it received. So my idea is, you could use this for an ...
0
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2answers
84 views

Prevent a file from being encrypted

Is it possible to prevent a file from being encrypted, or at least being easily decrypted in case of encryption? For instance; with the Crypto Locker malware attacking users, could you set up a ...
-1
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0answers
46 views

What attack can dll injection and APC injection lead too? [closed]

I would like to know what attack will dll injection or APC injection lead into. I sometimes hear that DLL injection can cause privilege escalation. APC injection: stands for asynchronous ...
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votes
0answers
30 views

How does BREACH attack work [duplicate]

So, I was reading about the security issues in Django websites. There I came to know about BREACH attack, which I have not understood completely. There it says that the attacker guesses the csrf token ...
1
vote
0answers
56 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, ...
0
votes
0answers
46 views

Older Cell / Smart phones were susceptible to bluesnarfing / bluetooth attacks, Why specifically are smartphones secure from this attack now?

Older cell / smart phones were susceptible to bluesnarfing / Bluetooth attacks, Nokia phones in particular. But now in days, modern smart phone and cell phones that use Bluetooth technology for ...
1
vote
1answer
46 views

Can TLS fallback work with server side support only?

I have patched my server with OpenSSL 1.0.1j for the Poodle vulnerability. Been reading the spec on TLS_FALLBACK_SCSV. From what I can tell in order for TLS fallback prevention to work properly it ...
2
votes
1answer
102 views

How does the Fake Authentication Attack from aircrack-ng work?

I'm making a school project about the AP attacks and I'd like to know how does the Fake Authentication Attack from aircrack-ng actually work and how to prevent it? I read a lot of articles but ...
1
vote
1answer
101 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 ...
1
vote
1answer
60 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( ...
0
votes
1answer
98 views

Open source alternatives to tamper data

I'm developing a browser(firefox) plug-in which essentially checks for malicious input. My current approach is to store all input fields sent in GET/POST requests, try to heuristically determine ...
1
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2answers
114 views

I was hacked, but I don't know why [closed]

Tonight I found by accident that someone had injected a bunch of crap links into the bottom of my personal site's index.html page. I thought it was a script at first, but after going into my FTP ...
1
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2answers
69 views

Is a server absolutely safe if the attacker don't know unknown bug?

If a server installed all patches for known bugs and the attacker can't do a 0-day attack, then is the server absolutely safe?
0
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0answers
53 views

Victim loses Internet connection during MITM attack

I tried to do MITM attack on my network. I enabled ettercap, marked my router as TARGET1 and my second computer as TARGET2. Then I enabled 'ARP Spoofing'. I do not know why - but after this operation ...
0
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0answers
18 views

Cracking WPA2 using Intel HD Graphics GPU [migrated]

I use Linux Kali and yesterday have captured a WPA handshake of my network. I want to crack it's password - but my CPU with aircrack-ng checks only about 2000 keys per second. In my laptop I have got ...
1
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2answers
54 views

bscrypt,scrypt v/s iterative SHA-x [duplicate]

Both bcrypt and scrypt hashing algorithms are designed to increase the resources required during the computation. Hashing passwords with these algorithms can be beneficial as it makes the task of an ...
2
votes
1answer
57 views

Is return oriented programming applicable to pure Java code?

I'm interested in ROP in the context of Java. For now, I don't consider the native code of the Java virtual machine. Is return oriented programming applicable to pure Java code?
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0answers
32 views

What is a DNS poisoning attack and how does it work? [duplicate]

So first of all is it the same as DNS cache poisoning? It's mentioned in this article http://www.infosecurity-magazine.com/news/sites-damage-china-blocks-edgecast/ in the second paragraph and would ...
3
votes
1answer
634 views

Are passwords stored in the cookie? encrypted?

Whenever I connect to security.stack.exchange, I am automatically logged in. I haven't allowed the browser to store my password. When I delete all cookies stored by the security.stack.exchange, I have ...
4
votes
1answer
93 views

Use of JavaScript by LastPass to encrypt & decrypt the password database a secure approach?

LastPass is a top-rated password manager that comes as a browser extension and uses a master password to encrypt and decrypt the password database using the JavaScript. Is this a secure way of doing? ...
17
votes
2answers
2k 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 ...
2
votes
1answer
102 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.
2
votes
1answer
94 views

While logged in to Google etc., can a malicious site discover my ID?

If I visited a malicious site while being logged in to Google, Hotmail, Facebook, or Twitter in the same browser window, how hard is it for the site to discover my account IDs without my explicit ...
1
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1answer
60 views

Force DNS to attach bad IP address

The question is not professional, but what I'm trying to say is... Is there any way to inject or force the DNS server to attach/change an IP address for some site. For example, I'm running an apache ...
1
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0answers
47 views

Backdooring vulnerable lighttpd installed on wireless AP [closed]

I have an AP at home and I'm trying to secure it as much as I can. I found an bug by accident. My AP has 3 ports opened: 22/ssh 53/dns 8081/blackice - icecap What I found is that my port 8081 ...
5
votes
3answers
202 views

Can anyone be hacked?

I have often heard that if you are the target of a directed hacking campaign by say, a team of government hackers (whether Chinese, NSA, etc.), there is no way to prevent being hacked if they highly ...
3
votes
1answer
104 views

SSD Self Encrypting Drives - Setup / warm boot bypass

I've seen folks deploying the SED on laptops recently. I've discovered that there is a setting in which you can do a warm boot and NOT require the bootup password to be put in again. Which makes ...
0
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2answers
162 views

When MBR pirates grin as an indication of absolute pleasure!

Someone, have no idea who, really worked my computer, and placed some rootkit, all-knowing, all-smashing malware something and I simply cannot keep Windows OS clean in a multiboot configuration with ...
2
votes
2answers
729 views

Can Poodle be fixed in SSLv3 or will it go the way of TLS compression?

Is TLS_FALLBACK_SCSV going to be the fix for servers that wish to keep SSLv3 enabled? If not what actions are being taken, if any, that address the vulnerability besides disabling SSLv3?
7
votes
1answer
1k views

How do I stop attack on my email id from hackers?

We have an email id, info@<ourdomain>.com This email id is being hacked frequently and mails are sent from this email id, Following is the example of one such email. From: ...
1
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2answers
345 views

SSLv3 cannot be disabled, can I use weak cipher as a workaround?

We're using lighttpd 1.5.0-2349 which unfortunately doesn't support the option to disable SSLv3. I think a potential workaround would be to only allow it to use some cipher which has already been ...
1
vote
1answer
434 views

Poodle - possible to protocol downgrade if SSLv3 is disabled but still have SSLv3 ciphers enabled?

My title pretty much sums it up. If I have: A server with the SSLv3 protocol disabled BUT still have SSLv3 ciphers enabled. Would that mean that a protocol downgrade attack can still occur?
191
votes
4answers
67k views

SSL3 “POODLE” Vulnerability

Canonical question regarding the recently disclosed padding oracle vulnerability in SSL v3. Other identical or significantly similar questions should be closed as a duplicate of this one. What ...
-8
votes
1answer
112 views

I need help on how to hack into a scammer computer via IP/DNS [closed]

I really need your help in this one. Today I got scammed by a "trader" for 100$, but I managed to get his IP, reverse DNS and Hostname but I am unskilled in hacking. I need help here, I just want to ...
1
vote
1answer
125 views

Clarification about the post: Russian hackers use ‘zero-day’ to hack NATO, Ukraine in cyber-spy campaign

I have encountered the following article on Washington post: Russian hackers use ‘zero-day’ to hack NATO, Ukraine in cyber-spy campaign. As always in such kind of articles the publication sounds ...
28
votes
2answers
3k views

What actually happens in “low voltage fault attacks”

I understand they are an attack on crypto algorithms as implemented on various processors, but how do they work? The online papers are too complex for me to understand.
3
votes
1answer
117 views

How is Cross Site Flashing performed?

I read about cross site flashing in the OWASP testing guide. I know the difference between XSS and XSF. But what I am looking for is how attackers perform a XSF attack. How is it possible since there ...
77
votes
12answers
11k views

What is different about being targeted by a professional attacker?

It is often said that security tools such as firewalls, antivirus programs, etc. are only effective against random, untargeted attacks. If you are specifically targeted by an intentional, professional ...
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1answer
46 views

How strong exactly is a 3gbps booter?

I heard some people talking about how they had a 3 gigabyte per second drddosser. That sounds all fine and dandy, but what can that actually do? Could it take down a website? To what extent?
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5answers
155 views

Are most MiTM attacks done to impersonate web sites, or simply decrypt traffic?

The more I read about impersonating web sites the more I get confused. Does an attacker need the private key of the server in order to impersonate a website or does having the private key simply give ...