A vulnerability which is known to the designers, implementers, or operators of the system, but has not been corrected.

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3
votes
2answers
3k views

FREAK Attack: How to disable all EXPORT ciphers in OpenSSL?

As we all know all EXPORT ciphers in OpenSSL should be disabled so that we are not vulnerable to the FREAK attack. reference- ...
0
votes
0answers
28 views

How can the CVE-2008-5100 vulnerability be exploited [closed]

I cant get the way to exploit or understand this vulnerability CVE-2008-5100 Retrieved x-aspnet-version header: 2.0.50727 need to know the specific way
-1
votes
1answer
26 views
11
votes
3answers
12k views

Which web server is more secure, Apache, nginx or lighttpd?

We are trying to decide which web server to choose for our PHP application. Which of Apache, nginx or lighttpd is the most secure? Which of these has had the most and most severe security holes?
17
votes
5answers
2k views

Is Google Chrome a more secure browser?

I was amazed that IE 8, Safari, Firefox were hacked so fast at Pwn2Own 2010. Is Chrome really so good or was it not tested? Has anyone other results of independent investigations about security of ...
1
vote
0answers
52 views

Where to search for vulnerabilities in a WordPress theme? [closed]

I have been doing research on a custom WordPress theme. I'm not very familiar with this CMS and how it works on the inside: where should I start my security analysis? Should I look for SQL Injection ...
1
vote
1answer
506 views

Is the 'SUIDGuard' patch safe to implement?

Can someone who really knows what they're looking at advise whether the patch published here by Stefan Esser is in fact safe to install? While I'm very concerned that Apple haven't published an ...
1
vote
2answers
54 views

Where to check if a specific OS / service is vulnerable despite being patched, because of a vendor's decision?

I need to discuss how to mitigate the risk of services which are vulnerable despite being patched (typically because they are not maintained by the vendor anymore, or because the vendor does not want ...
10
votes
1answer
4k views

.JPEG File upload shell via EXIF comments

I came across this advisory recently and I'm a bit confused by both exploits, but specifically the file upload vulnerability. I don't understand how to actually exploit this condition (or even why ...
3
votes
3answers
97 views

Temporary XSS Vulnerability

I found xss on a textarea field. When you enter a character to this field it output the character in real time so when I input the following code: <input onclick=alert(document.cookie)> there ...
2
votes
2answers
112 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 ...
0
votes
1answer
249 views

How can you check and analyze SSL ports other than 443? [closed]

I tried https://www.ssllabs.com/ssltest/analyze.html?d=imap.spamarrest.com%3A993&hideResults=on but it said Ports other than 443 not supported I need to check imap.spamarrest.com:993
4
votes
4answers
10k views

Is diskcryptor really secure?

Diskcryptor is an open-source competitor to TrueCrypt for Windows. It has an edge over Truecrypt for system encryption, because it allows for more than one independently encrypted system partition, ...
0
votes
0answers
45 views

How do Common Vulnerabilities and Exposures (CVEs) work?

The Common Vulnerabilities and Exposures (CVE) system is a dictionary of publicly known information security vulnerabilities and exposures in publicly released software packages. I am looking for a ...
36
votes
3answers
23k views

Stack Overflows - Defeating Canaries, ASLR, DEP, NX

To prevent buffer overflows, there are several protections available such as using Canary values, ASLR, DEP, NX. But, where there is a will, there is a way. I am researching on the various methods an ...
0
votes
1answer
98 views

The way vulnerabilities like CVE-2014-4148 are discovered [duplicate]

What is the most probable way the vulnerabilities like CVE-2014-4148 are discovered? How long does it take to find such one? Are there other ways? Which is the most successful one?
2
votes
1answer
43 views

Is auto-redirecting to another site a secure defense against POODLE?

Normally, servers that support SSL 3.0 are vulnerable to the POODLE attack. But, consider a server that has the following interesting combination of features: It supports SSL 3.0. If you connect to ...
13
votes
2answers
761 views

How to make a website patch their poor security?

I am following an online class from a local institution. Recently, I've noticed they don't hash passwords because they sent me my password by e-mail in clear text. The website has a lot of personal ...
0
votes
5answers
52 views

Where can I find a description list for major vulnerabilities? [closed]

I'm looking for a description list for major vulnerabilities such as SQLi, XSS etc. The format should be like this: Short Description: Description: Impact: Solution/How to prevent: ...
0
votes
0answers
66 views

Exchange Autodiscover XML question (Exploit related)

Recently we had an issue with the Exchange autodiscover.xml appending ".com" to our mail servers autodiscover address. It resulted in a certificate error due to the name not matching the certificate. ...
6
votes
2answers
4k views

TrueCrypt vs BitLocker

I would like to ask which one of these TrueCrypt or BitLocker is safer to implement and encrypt the data in a small business environment (Windows 7, 8.1 and Windows Server 2012r) I read about ...
6
votes
1answer
151 views

Does mutual SSL authentication increases protection against a Poodle attack?

Recently we found our self pondering whether a certificate based mutual SSL authentication protects against a Poodle attack over SSLv3? We’re stuck in a situation where a client-application only ...
1
vote
2answers
955 views

How to exploit Open Redirect Vulnerability?

Redirect/Forward attack code: <?php $redirectUrl = $_GET['url']; header("Location: $redirectUrl"); ?> exploit (Sends user from your page to evil page) : example.com/?url=example.com/faq.php ...
1
vote
1answer
221 views

Security risks if a server in not supported anymore

I have an SQL 2000 database server which is not supported by Microsoft anymore. We have our information security policy applied and even PCI requirements. What are the security risks that we might ...
2
votes
1answer
55 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 ...
1
vote
1answer
117 views

Is native app vulnerable to FREAK attack? If yes, how to detect it as a user?

When I research about FREAK attack, most of them explain about the server and browser vulnerability, but how about native apps (e.g. Windows executable program, mobile apps)? From Mark's answer on ...
3
votes
1answer
220 views

If a web server only has a 2048-bit RSA key, can a FREAK based attack still happen?

I think I'm missing something with the FREAK SSL vulnerability. I understand that the MITM server requests the RSA EXPORT ciphersuite which is limited to a 512-bit key (which in turn is feasible to ...
1
vote
2answers
265 views

Why are some attacks more famous than others (heartbleed, BEAST, POODLE, etc)?

Eg Heartbleed, aka CVE-2014-0160, only has a CVE severity of 5.0. Yet the media went crazy about these bugs. Is it because they have a cool name and a logo, or is the CVE severity metric somewhat ...
5
votes
1answer
868 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 ...
1
vote
2answers
191 views

How to test the php vulnerability CVE-2014-3515

How to test if I'm vulnerable regarding CVE-2014-3515? My vendor supplied me with a patch and verified that it installed however I would like to verify that I am no longer vulnerable. My vendor ...
3
votes
2answers
546 views

List of most common network vulnerabilities a la OWASP Top 10 [closed]

I am trying to find the most commonly used attack vectors/techniques on computer networks in the style of the owasp top 10, for my thesis work. The reports shouldn't be older than 2-3 years. Can you ...
3
votes
8answers
667 views

Are URL shorteners “vulnerable” due to open redirects?

The OWASP state that open redirect is a vulnerability: An open redirect is an application that takes a parameter and redirects a user to the parameter value without any validation. This ...
1
vote
1answer
434 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 ...
5
votes
2answers
453 views

On Hawkes' technique to bypass canaries

I found this reference to bypass canaries: http://sota.gen.nz/hawkes_openbsd.pdf It recommends to brute force the canary byte-for-byte. I don't understand how this works: "Technique is to brute force ...
32
votes
5answers
4k views

IMG tag vulnerability

Is it safe to display images from arbitrary domains? I.e. let's say I have an image on my page: <img src="http://badguy.com/image.gif" /> What if image.gif will return some js attack vector, ...
2
votes
0answers
95 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 ...
6
votes
3answers
7k views

Force a connection via SSL3 to detect POODLE vulnerability

I have been reading up on the POODLE vulnerability. From my understanding, and correct me if I am wrong, you need to allow connections to be made via SSLv3 on the server. The server I am currently ...
2
votes
2answers
14k views

known public exploits for vsftpd 2.0.1/2.0.5

I somehow noticed that there were numerous reports of security vulnerabilities of vsftpd 2.0.1~2.0.5; however, there just seems to be no public exploits. The server I am working on has vsftpd 2.0.5 ...
2
votes
2answers
161 views

Fuzzing and its impact on testing environment

I asked this question on StackOverflow but got no answers so I thought that I would try my luck here since fuzzing is closely related to security and often used in vulnerability assessment tests. I'm ...
5
votes
3answers
864 views

Why does printf() vulnerability require 4-bytes of junk data? - “Hacking: The Art of Exploitation”

I've been reading "Hacking: The Art of Exploitation 2nd Ed." and I hit a part that's not explained clearly enough for me. In the section "Writing to an Arbitrary Address" Jon Erickson creates a ...
21
votes
9answers
3k views

What cryptographic algorithms are not considered secure?

What cryptographic algorithms are not considered secure, but yet are still widely used and available in standard libraries? If applicable, mention a secure alternative.
9
votes
1answer
928 views

Example of how the remaining shellshock bash bug CVE-2014-7169 (taviso bug) could be exploited?

I have a general idea about the Shellshock bash bug (CVE-2014-6271 reported Sep 24, 2014) of what the vulnerability is and how it could be exploited. Here you find examples on how to exploit the ...
7
votes
2answers
533 views

How stack smashing is prevented?

I just read AlephOne's paper on smashing the stack, and implemented it on my machine (Ubuntu 12.04), it was a bit old so had to take a lot of help from the internet but I enjoyed it. Now, I want to ...
3
votes
2answers
787 views

How to exploit via Metasploit vulnerabilities found with Nessus?

I am new in the field and trying to pentest a php web app locally stored on my host pc using metasploit from a kali vm. I have run some scanners like wmap,OpenVAS and Nessus and found some ...
1
vote
0answers
82 views

Find the location of a hidden host

I'm doing a penetration test for a client who wants me to try and target a specific server. I have managed to get credentials(hard-coded in an in-house app) to a limited account on this server that ...
-2
votes
1answer
91 views

Best and most current sites for security breaches [duplicate]

I'm taking my masters in cyber-security and as a student I come across a lot of garbage when doing research. What are sites with the latest security breaches? Thanks for the help in advanced. My ...
2
votes
1answer
345 views

Why Shellshock works in useragent string?

I was wondering why Shellshock works when put in the useragent. Based on what I could find it is because a web server (e.g Apache) uses the useragent string in its internal working. Why would a ...
17
votes
2answers
2k views

Flaw in encryption through pseudorandom number stream (from PGP documentation)

I was reading PGP docs and came upon a part written by Phil Zimmermann (PGP's creator) that piqued my curiosity: When I was in college in the early 70s, I devised what I believed was a brilliant ...
2
votes
1answer
256 views

Are Java applications vulnerable to CVE-2014-6321 (WinShock)?

CVE-2014-6321 (also known as MS14-066) is a heap overflow vulnerability discovered by Microsoft engineers in Schannel, the SSL/TLS implementation used by Windows. My Java application uses SSL (JSSE ...
2
votes
1answer
137 views

Is this somebody trying to exploit a vulnerability?

On our website, when an invalid PHP session ID is detected, it's logged and regenerated. This invalid session has been logged: n040jl1nujch72tkrmr0uilnl1, ...