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

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7
votes
2answers
298 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 ...
23
votes
10answers
4k views

Vulnerable OS's?

Which vulnerable OS's like for example DVL would you recommend for someone to use for the purpose of pentest/exploitation learning?
165
votes
4answers
35k 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 ...
1
vote
2answers
162 views

POODLE vulnerability in major social networking

Social networking is a corner stone for a majority of our daily lives, be it communicating with friends, sharing photos or even using social networking for advertising and business promotion. Whilst ...
1
vote
2answers
191 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 ...
2
votes
1answer
113 views

Performing POODLE attack

I trying to perform POODLE attack on a hosted server that I've configured to support only SSLv3. The scenario is I logged on my server and it sends the cookie in response that will be stored by the ...
5
votes
2answers
329 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 ...
1
vote
0answers
117 views

Windows OLE Vulnerability CVE-2014-4114 “Sandworm”

Just heard about a new vulnerability and am using the same format as the POODLE guy for this one. What is the Sandworm vulnerability? I use [product/browser]. Am I affected? Is [product] ...
3
votes
0answers
201 views

POODLE: Disabling SSLv3 in Apache [migrated]

Everybody seems to be talking about the POODLE vulnerability today. And everybody recommends disabling SSLv3 in Apache using the following configuration directive: SSLProtocol All -SSLv2 -SSLv3 ...
1
vote
1answer
245 views

automatic connection from LSASS to different IPs. Is this the usual behavior?

I'm using windows 7. firefox 22. connecting through a regular residential wifi router. In the last month I've noticed that when I connect to the internet and once in a while my firewall indicates me ...
2
votes
1answer
79 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, ...
170
votes
5answers
85k views

What is a specific example of how the Shellshock Bash bug could be exploited?

I read some articles (article1, article2, article3, article4) about the Shellshock Bash bug (CVE-2014-6271 reported Sep 24, 2014) and have a general idea of what the vulnerability is and how it could ...
-1
votes
1answer
59 views

Shellshock vulnerability for pc inside LAN

A common pc running bash inside a home LAN network (with a router/gateway providing internet access to the LAN) does not have any contact with the external internet, except browser navigation and the ...
1
vote
1answer
155 views

Exploiting shellshock

On doing some digging on the shell shock vulnerability, I found that being able to run the exploit via a remote location depends on whether the attacker actually knows the exact cgi script which uses ...
2
votes
2answers
178 views

Why is Un1c0rn exposing wget on heartbleed?

What's the point of spotlighting wget on heartbleed dumps? I'm specifically talking about this which is the first page of wget occurencies in heartbleed dumps. They put this page as a link on the ...
-2
votes
1answer
692 views

The correct way to check for vulnerability CVE-2014-7169 (aftershock)

I found two ways of checking for the vulnerability CVE-2014-7169 (aftershock or taviso bug) bashcheck uses: cd /tmp;rm echo 2>/dev/null X='() { function a a>\' bash -c echo 2>/dev/null > ...
5
votes
0answers
609 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 ...
11
votes
5answers
2k views

Is replacing bash with another shell a prudent step?

Considering that RedHat and other major teams in business are conducting an audit in bash and have uncovered a few other vulnerabilities besides -7169 (-7186 and -7187), is it sensible to link /bin/sh ...
0
votes
0answers
225 views

How are you able to inject bash script through the user agent

I was looking over the new Bash exploit and was looking at this post in particular. Attack scenarios of the new Bash vulnerability What I don't understand is how does including bash in the ...
20
votes
1answer
8k views

Attack scenarios of the new Bash vulnerability [duplicate]

Odds are that you're already aware of the newly discovered Bash bug. It can be tested using env x='() { :;}; echo vulnerable' bash -c "echo this is a test". What yet I haven't understand is, what ...
2
votes
4answers
139 views

Vulnerability exploitation in Java

I am not intimately familiar with Java, so this could be a stupid question. In a C program I can find buffer overflows or may be a ROP based exploit to run custom code. How is it done in the context ...
1
vote
1answer
165 views

Cannot get access into a vulnerable Windows 2000 (MS03_026)

I'm trying to get access into a Windows 2000 server through the vulnerability MS03_026. An exploit is provided by Metasploit but I don't know why it isn't working. After filling the options (basically ...
0
votes
1answer
1k views

Cable modem/router hidden internal ISP network?

I was querying my router(Thomson TCW750-4) over the SNMP and stumbled upon some interesting information. I see that the router actually has five separate network configurations operational: ...
1
vote
2answers
48 views

secure flash update

The default method for updating flash is through Adobe's unsecured http portal, which seems to be a serious security concern, given the access that flash has on a user's machine. Can anyone recommend ...
2
votes
2answers
351 views

What was the security vulnerability behind Box and Dropbox and what's different now?

Earlier today I received a number of comments saying that my shared links were disabled. I looked around and saw a number of articles explaining what happened, and Dropbox posted an official statement ...
1
vote
0answers
48 views

use after free vulnerability [closed]

I am struggling trying to understand use after free vulnerabilities, can someone explain it for me with C language source code, and how it can be used to write to arbitary memory location or to cause ...
5
votes
1answer
2k 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 ...
11
votes
7answers
2k views

Can hackers detect my operating system?

I've seen people demonstrating the use of backtrack to attack VMs. In one of the components of backtrack, it shows the operating system of the targets. Since support for Windows XP is ending soon, i ...
0
votes
4answers
578 views

How can i protect myself from tor vulnerability on windows

Recently I came across an article regarding Tor. According to article there is speculation that the uncovered malware was used by a law enforcement agency to harvest the IP addresses of users ...
5
votes
4answers
621 views

How to hack a Win95 machine?

While playing with old operating systems, I came across that there are no remote code execution exploits available for Win95 machines, running just file share (no IIS or anything else). Win95 neither ...
25
votes
4answers
4k views

How secure are my passwords in the hands of Firefox using a Master Password?

I'm relying on Firefox to remember my passwords, using a Master Password of more than 25 characters. How secure is this set-up?
15
votes
3answers
2k views

Can Windows malware harm a Linux computer when it's executed with Wine?

I am an (Ubuntu) Linux user. Sometimes, I have to use Wine for running Windows executables. I would like to know if Windows malware (virus, trojan, worm,...), i.e. malware that was not intended to ...
2
votes
1answer
111 views

What is the exactly mean of these CPE file fields?

I am working in the development of an application that have to download and parse this CPE file definition: http://static.nvd.nist.gov/feeds/xml/cpe/dictionary/official-cpe-dictionary_v2.3.xml My ...
1
vote
2answers
83 views

Is php DOMDocument::loadXML completely secure?

Our application is using loadXML extensively to recieve data(input) from the users. Other than the usual checks for SQL injections and XXS, are there any known risks in parsing the xml file using ...
5
votes
0answers
32 views

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

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 ...
5
votes
3answers
313 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 ...
2
votes
2answers
324 views

I've found security vulnerability in current linux distribution. What next?

I've installed ubuntu server 12.04 on VM two weeks ago. I've created regular snapshots. XXX time ago I've noticed unusual activity and I've found that a backdoor was installed into my server. One of ...
2
votes
3answers
1k views

Is OpenSSL secure enough?

We plan in distribute Node.JS webservers, for their advantage of async I/O. The Node.JS https servers use OpenSSL libraries. It appears that OpenSSL has vulnerabilities resolved on a regular basis. ...
0
votes
1answer
96 views

Fomat String vulnerability used to display data outside the function stack frame?

if we run the following code using the input "hi", the output will simply be "hi" main(int argc, char **argv) { char *secret = "This is a secret 1\n"; char *secret2 = "This is ...
1
vote
1answer
138 views

What Is AllowNullSessionFallback?

I've been examining various things under LSA in the registry, and I came across this: ...
0
votes
5answers
240 views

Are all URL shorteners unsecure/vulnerable?

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 ...
0
votes
0answers
82 views

Is OpenSSL 0.9.8h affected by CVE-2014-0195?

I have spent time on finding out if OpenSSL 098h is affected by the CVE-2014-0195 ..but it seems I will have to understand the entire file d1_both.c to answer this question. 1) Preliminary look at ...
0
votes
2answers
74 views

Which mechanism did Flame use to avoid being identified?

I got a question that says "What is the major difference in the USB propagation system used by Flame with regard to Stuxnet to prevent being identified?". After Googling for a while, I haven't found ...
-1
votes
1answer
70 views

BigDump v0.35b vulnerability [closed]

I dont understand what the problem with BigDump v0.35b. This site says that it have problem. But i dont understand it. Problem here? if (!$error && isset($_REQUEST["uploadbutton"])) { if ...
1
vote
1answer
55 views

How does the ruby vulnerability affect me?

Visiting this site: http://ruby-doc.org/ I get this message: There were 3 Ruby vulnerability reports in the last 14 days. 2 high, 1 medium. Most recent: CVE-2013-4562. See details. I only ...
2
votes
1answer
384 views

TLS v 1.1 vulnerabilities

My question concern TLS : What are the main vulnerabilities of TLS v1.1 ? Actually, none RFC describes v1.1 vulnerabilities, neither what pushed them to change to the new protocol 1.2 except ...
4
votes
2answers
67 views

How do I know that I'm vulnerable to the: “ Coordinated Website Compromise Campaigns Continue to Plague Internet ”

http://blogs.cisco.com/security/mass-compromise-of-the-obsolete/ and: All Redhat/CentOS versions plus nearly 100% of linux-based routers run 2.6 Since the article is extremely ...
-4
votes
2answers
140 views

What types of software vulnerabilities are out there? [closed]

I have search a lot in the internet and I didn't find anything that is directly answer my question. What type of vulnerabilities are out there. I mean vulnerabilities like buffer overrun, not like XSS ...
-2
votes
3answers
151 views

How do I communicate security issues encountered on an online banking platform?

Occasionally, I've produced (and reproduced) the HTTP 500 Internal Server Error on an online banking platform - quite a famous one. I suppose the errors are due to bugs in back end code, possibly ...
0
votes
4answers
175 views

What is a good way to be alerted of major security patches for software I use? [duplicate]

I maintain a few webservers running ubuntu, apache, mysql, and python/django. I update all the libraries quarterly, but I'd like to update more often when a patch for a major vulnerability is ...