A zero-day (or zero-hour or day zero) attack or threat is an attack that exploits a previously unknown vulnerability in a computer application, meaning that the attack occurs on "day zero" of awareness of the vulnerability.

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How are zero days found?

I believe that it was leaked recently that the NSA has a long list of zero day exploits on various software "for a rainy day," ie: for whenever it would be useful to them. The question is, how do ...
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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?
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Heartbleed and Routers/ASAs/other

OK, so I first heard about heartbleed a few hours ago through the stack exchange questions feed, and after a moments panic, realised that the only web servers I have secured via OpenSSL are on the ...
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3answers
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Should I be disabling Java?

First it was Apple, now it's the US government... U.S. urges users to disable Java; Apple disables some remotely New malware exploiting Java 7 in Windows and Unix systems How serious is this "...
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5answers
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Designing in zero day attack mitigations

What are best practices / recommendations / strategies for mitigating zero day threats/attacks from a software development perspective?
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If I find or create a 0day exploit, can I be held liable for releasing out to the public?

If I found or created a 0day and decided to immediately release it into the wild (Giving a P.o.c w/ source). But not using it to actually exploit anything. Can I be held liable for it?
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966 views

Unknown malware, how to report it and whom to report it to?

I'm a professional Windows system administrator, but I've been caught off-guard (or maybe some malware writer has been very clever) and I caught some unknown malware on my home computer (Windows 7 x64 ...
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2answers
950 views

What was behind the surge of Adobe Flash Player vulnerabilities/patches in 2015?

It's no secret that 2015 was a rough year, security-wise, for Adobe's Flash Player. Aside from Adobe itself beginning to essentially deprecate Flash development largely due to Flash Player's ...
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1answer
964 views

SCADA / PLC exploit code was released in metasploit. Now what?

Wired reports that there are many security issues with Programmable Logic Controllers (PLCs) and now there is an easy to use tool to scan and detect vulnerabilities. They say it's so easy, the ...
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How do you defend specifically against attackers utilizing any or all of the commercial exploit kits?

There are several commercial exploit kits available containing 0day vulnerabilities: White Phosphorus Exploit Pack http://www.immunityinc.com/products-whitephosphorus.shtml Agora Exploit Pack ...
12
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1answer
636 views

Why is EC2 not vulnerable to VENOM?

I saw the advisory stating that EC2 instances are not vulnerable to VENOM. My understanding is that EC2 runs on Xen, and that VENOM affects XEN. Can anyone explain why EC2 is not vulnerable? Do ...
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5answers
314 views

What are the areas to focus on to protect users and devices?

What are the areas or technologies to focus on to protect users and devices? Are patching, antivirus and firewalls still the main areas? How do you defend against attacks against vulnerabilities ...
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2answers
192 views

What are the likely effects of increased government spending on “Cyber Weapons” on the software industry?

From the conference scene and news this year it seems probable that there's an increased amount of spending from governmental agencies on what it getting termed "Cyber Weapons". A key component of ...
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2answers
187 views

Encouraging security researchers to disclose vulnerabilities

What are approaches to forming solid relationships with security researchers? For example, is publishing a public PGP key on the "contact us" page of a company's website for high levels of risk ...
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3answers
1k views

How to subscribe to information about new vulnerabilities in selected products?

In order to be informed about critical vulnerabilities in selected products I'd want to subscribe to some list about them. I'd want to configure the list of products by myself. The question: Where ...
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1answer
1k views

Heartbleed how to find out applications using statically compiled version of openssl?

We're analysing issue at work and I wondering how to find out if there's any binary with a statically compiled version of openssl which includes this bug. Would it be possible to find a fingerprint ...
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2answers
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How can I detect (or inventory) all DLLs that don't use ASLR?

Based on this IE zero day, I'm interested in listing all DLLs in our systems that have been compiled to not work with ASLR. Ideally, I'd like to analyze a static file and not load it into memory to ...
7
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2answers
516 views

How to keep using Java 6 securely, despite its unpatch vulnerabilities

Given that Java 6 is now deprecated by Oracle and there recently has been notification of a 0day (that will exist forever now that Oracle is not patching JRE6), what can we do to prevent drive-by ...
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2answers
554 views

How exactly was Sony Pictures hacked November 2014? [closed]

There is lots of media coverage like this one but I have not yet been able to find details on how the hackers got into the network, the servers and the users' systems. So what vulnerabilities / zero-...
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2answers
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Known security vulnerabilities in JBoss 4.x.x?

We just had a breach of one of our servers, where an intruder got access using the JBoss account and started running exploit scripts. The server has been taken offline and is being investigated, but I'...
6
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3answers
237 views

find if 0-day flash bug was exploited (on a particular machine)

There have been several critical 0-day exploits in the past days/weeks in Flash alone. Nobody knows how long the 0-days have been exploited, and it is reasonable to expect that there are 0-days being ...
6
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2answers
339 views

Zero-Day Exploit targeting Internet Explorer Versions 9 through 11

Few days ago, FireEye has found a vulnerability, which affects all versions of IE (even the latest 11). Microsoft has official statement regarding this issue. FireEye wrote a technical article on ...
6
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2answers
199 views

Cost of finding vulnerabilities vs developing exploits

From the perspective of someone who wants to develop a zero-day exploit against some software application or target, there are broadly speaking two tasks that the attacker must do: (1) find a new ...
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4answers
582 views

What is zero day?

More specifically, if a website is using an application already known to have a flaw as part of the larger service it offers (so, say it's using a version of Apache known to have a flaw, and the ...
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3answers
602 views

Where can I get security breach alerts?

I've been following a mish-mash of Google News alerts as well as some 'security' influencers on Twitter, but have a feeling there's a more efficient way to deal with this out there...
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1answer
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What is the “Moose” worm and how can I protect myself from it?

I have heard from others that there is a new worm called "moose". This actively targets and exploits home routers. What are the effects of this exploit? How can I protect myself from this? Can I ...
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How often do high-end attackers actually use zero-day exploits?

Earlier this week the head of the NSA's Tailored Access Operations unit rather remarkably gave a presentation at the USENIX Enigma security conference. (News coverege here and here; video of the talk ...
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How do honeypots remain secure to 0days and newer exploits?

If honeypots are designed for a specific set of exploits, such as SQL injection and XSS, how do they protect themselves against other exploits? For instance, if I created a honeypot a few months ago, ...
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2answers
968 views

Where do I get started in terms of learning how to exploit Java and Flash vulnerabilities? or browser exploitation in general

Another Java 0day was discovered today which got me thinking how browser exploitation (remote execution on clients browser) works. I am unable to find any books or resources online about browser ...
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2answers
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How does Java 7 update 11 fix the security vulnerability?

There is a new Java released a couple days ago to resolve a hole that was recently discovered. (Oracle, US-CERT, NVD/NIST) In my initial reading about this update 11, I saw clearly where it by ...
3
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2answers
157 views

As a user, how can I defend myself from disclosed unpatched zero-day vulnerabilities?

In the wake of the Hacking Team breach on July 6th, 2015 [1] [2] I heard that some previously unknown zero-day exploits might surface (apparently one for Flash already has). Once these exploits ...
3
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2answers
200 views

How to demo a new 0-day security product?

We are a development team working on a new 0-day protection security product. We aim to protect against new unknown 0-days attacks against servers. We have a very strong solution ready to demo. The ...
3
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1answer
232 views

At what criteria should an unpatched machine be considered hacked? [closed]

Since every machine connected to the Internet requires security patches, there is a window of time in which those updates have been released and those machines haven't yet been patched. It is ...
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4answers
575 views

How should I defend against zero-day attack on SSH?

Vulnerabilities are discovered everyday. The recent Heart bleed attack caught many people off guard. I was wondering if a serious flaw was to be discovered that allows unfettered access to SSH, how ...
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1answer
135 views

Suddenly scans for 'formvars.php'

Suddenly, starting from about yesterday-evening (gmt+2), I get lots of -what I suspect are- 'hits' from bots that are looking variations of this file: /somerealpath/includes/formvars.php I'm ...
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1answer
744 views

How does one test AV against zero-day malware?

Lately, I've read several articles about anti-malware software and one thing caught my eye - ability to detect zero-day attacks. In short - how does anti-malware / anti-virus industry test their own ...
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4answers
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Virus won't be picked up by Antivirus tools

Today we found a virus / trojan on our network which has thus far: Hidden all files and folders Replaced the hidden files and folders with executables of itself, with matching icons, and renamed ...
2
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2answers
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Security Practices by Employees in a Corporate Environment

Consider the following situation : 1. Somehow my boss's system got infected with a malware ( He visited one of the Java exploits website). 2. He sends a PDF document containing the requirement ...
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1answer
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How does malware such as Stuxnet and Flamer propagate through USB memory sticks?

The best explanation I found is from this article but it still is unclear to me. Apparently a new vulnerability has been found involving .lnk files where when a folder on the memory stick containing ...
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3answers
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Can I tell which applications embed Internet Explorer at a command prompt?

A recently discovered vulnerability affects Internet Explorer versions up to version 9, running on Windows XP, Vista, and Windows 7. This arstechnica article quotes HD Moore as saying, Just keep ...
2
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1answer
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Apache Partial HTTP Request Denial of Service Vulnerability

One of our client scan our site and share following qualys vulnerability. "Apache Partial HTTP Request Denial of Service Vulnerability - Zero Day " We are using "Ubuntu 12.04.5 LTS" with Apache/2.2....
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1answer
562 views

How disable Java in Chrome 23?

Well in case someone doesn't know yet... there is a new Java zero day. I'm trying to disable it on Chrome but I can't find any option. Google searches says that the option for deactivate it is on ...
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0answers
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Information on the Elderwood Project/Platform [closed]

I've read Symantec's whitepaper on the Elderwood Project and the blog update on the Elderwood Platform. They both make for a very interesting read, especially in the zero-day exploit meta-analysis ...
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2answers
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Is there a practical way to identify security vulnerabilities that were published following a full disclosure policy?

I am conducting a study about the different vulnerability disclosure policies in an effort to determine how long it takes for a given vendor to issue a fix/patch, depending on how a given ...
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1answer
78 views

Which Rogers internet compatible router is most secure? [closed]

Without telling you which specific Rogers-provided router, version, nor the terrible but verified security bug that exists for it (them), would any dear somewhat security conscious Rogers customer ...
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1answer
185 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 ...
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2answers
96 views

I want to start learning fuzzing windows applications, where should I start?

I got my B.Sc. in computer science and I am familiar with basic assembly language. I want to start learning about how to find vulnerabilities in Windows applications, e.g. buffer overflows, use-after-...
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How many accounts are affected by the vBulletin breach? At risk? [closed]

vBulletin hack(s) have affected vBulletin, itself (security questions and answers, salts, and hashes of more than 300,000 users of the 345k known to be registered), and Foxit Software (some data for ...
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1answer
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Reliable Sources for Software Vulnerability Patch Release dates

I have searched in NVD and realized that patch release dates are not published with the specific vulnerability information of an application. Other information like the "update date" do not ...
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What is known about recent zero day flaw with Tails up to this point in time and is Tails able to keep us anonymous from a global adversary? [closed]

Following is a excerpt from COMPUTERWORLD Yesterday, in talking about the zero-day vulnerability in Tails, Exodus Intelligence wrote: "We publicized the fact that we’ve discovered these ...