Archive for category Uncategorized
Gmail Password Leak Update
Posted by benoc in Uncategorized on September 14, 2014
Still thinking two-factor auth for Google (and other accounts) isn’t worth the trouble? Might be time to think again. http://www.google.com/landing/2step/
This week, a group of hackers released a list of about 5 million Gmail addresses and passwords. This list was not generated as a result of an exploit of WordPress.com, but since a number of emails on the list matched email addresses associated with WordPress.com accounts, we took steps to protect our users.
We downloaded the list, compared it to our user database, and proactively reset over 100,000 accounts for which the password given in the list matched the WordPress.com password. We also sent email notification of the password reset containing instructions for regaining access to the account. Users who received the email were instructed to follow these steps:
- Go to WordPress.com.
- Click the “Login” button on the homepage.
- Click on the link “Lost your password?”
- Enter your WordPress.com username.
- Click the “Get New Password” button.
In general, it’s very important that passwords be unique for each account. Using the same…
View original post 155 more words
Heartbleed, Internet Security and What it Means to You
Posted by benoc in reality, Uncategorized, work on April 9, 2014
For those not in the know, or catching any of the news stories that are popping up today in mainstream media, we are in the midst of dealing with a very serious vulnerability that has been discovered in the foundation of secure data transmission on the internet. While many of the news stories out there are filled with some ridiculous hyperbole, it would be dangerous to understate the criticality of what was discovered.
SSL (Secure Sockets Layer) is a protocol for letting your computer and other systems communicate across the internet with negotiated encryption (so people can’t snoop on your passwords and other sensitive transmitted information), and authentication (so you have a way of knowing that when you’re filling in information at your bank’s website it actually is going to your bank’s website). Anytime you’re at a website with “https” in the URL, or that little lock icon in your address bar, your communications are protected by this protocol and code running in your browser and on the server you’re communicating with works on encrypting and decrypting the information flying through the tubes. The SSL protocol was initially developed by our old friends at Netscape in the early 1990s, and is what makes e-commerce and a good portion of our modern economy and communications possible.
The Heartbleed Bug lets any attacker send a somewhat-carefully crafted message to a web server running this SSL code and get back arbitrary contents of the memory within that server. This is, sadly, not an uncommon type of bug (as anyone who has ever programmed will recognize the horror and commonality of array bounds-checking problems and buffer overflow problem). On a web server, however, some things that get returned from memory when it is poked with this attack include:
- The web server’s secret key – This is the key that’s used to actually encrypt all traffic. If you are running a secure website and were vulnerable to this bug, in my opinion, you should assume that your key has been compromised and generate a new key and certificate for encrypting future traffic. Fortunately, due to the “authentication” part of the SSL protocol, in order to take advantage of having a server private key and certificate, you’d have to launch a “man in the middle” attack — which takes a bit more work and often involves actually penetrating the network of your victim and/or hijacking internet DNS service for your victim. Still, this is a very bad thing to leak.
- Sensitive Information – Usernames, passwords, things filled out in forms and submitted to the website by other customers at the time the attack is launched will be present in the server memory in plaintext and can be retrieved. It’s not a bad idea to change your passwords regularly on websites anyways, but this bug might provoke you to go and do it right now
- Session Cookies – Many secure websites keep track of which users are logged in and which aren’t by sharing a little bit of data with you known as a “cookie.” It’s pretty much a magic number that your browser can present to the website to say “hey it’s me again.” The web server will then look it up in the database to say “oh yeah, you logged in successfully a few hours ago, you’re still good.” This is how you can go to websites like facebook repeatedly and not have to enter your password over and over again. Other users’ session cookies will be present in the server memory in plaintext and can be retrieved by this attack. This is called “sidejacking” and is (in my opinion) the most frightening aspect of this bug. This blog has a more detailed example of using this vulnerability to do a sidejacking, and confirms that this is possible on at least one “fairly popular website”
This bug was disclosed in what we call a “responsible” manner. The researchers that were supposedly first to discover it did not release it to the public, but went directly to the OpenSSL project and, in turn, large stakeholders were notified several weeks ago. It can be assumed that sites like Google, Facebook, Akamai (which is good because they actually terminate a good portion of the web’s SSL — including TripAdvisor’s), and hosting providers like CloudFlare have already repaired the vulnerability before yesterday. Sadly, it appears that the publication of the vulnerability on April 7th was earlier than hoped. Linux distribution providers (Debian, CentOS, Redhat, Ubuntu) who provide the OpenSSL code packages that people like me actually have to get to install on our web servers, were not providing a fix in some cases until late in the evening on the 7th — well after exploit code was in the wild. Furthermore, while I trust the researchers listed as the discoverers of this bug, I can not (nor should anyone) be 100% certain that someone else hadn’t already discovered this problem and has been attacking websites with it for several months stealing private keys and sensitive information and credentials. So while it’s comforting that responsible disclosure and fast action on the part of the people that run the web sites you visit every day (people like me) have potentially mitigated the problem, the consequences of this vulnerability are (as you can see in the list above) far reaching and somewhat frightening.
“So as a regular person, how worried should I be?”This is a common question a lot of people have been asking in the past day or two. I can’t pretend to understand your own risk and paranoia level, but I will attempt to convey how I feel. This is not a reason to stop trusting the little lock icon in your browser or the “https” in the url. Bugs happen, sometimes information is leaked, and then they get fixed. Any damage done by this has already been done and there’s no reason to yank out your ethernet cables and delete your facebook and twitter accounts. What you should do (and should be doing already) are some common sense web security techniques. If there’s a bright side to this bug, it’s that this may increase everyone’s awareness and get people do to the following:
- Change your passwords: This is a no-brainer. If anyone gets your account information (through this vulnerability or any other means), it’s useless if you change your passwords. I do this every few months.
- Don’t use the same passwords on multiple sites: This is a common problem. Here at TripAdvisor the only thing your password protects is a bunch of travel reviews. You may think “oh whatever, big deal.” But research (and anecdotal evidence) shows that many people use the same exact password and username on many sites. The same username and password a user uses on TripAdvisor may very well be their gmail password, or the password for their online banking, or facebook or twitter. Websites get hacked all the time (none that I’m responsible for, of course, LOL [yes, I just typed LOL]) — sometimes without the public even knowing about it. So be smart. Even I don’t use a unique password for every website, but I have a set of four or five that I use for different classes of sites (social media password, email password, financial services password, shell login password, etc.).
- Pick a good password: People have been saying this forever, but I will say it again. Quick story: when I was at UIUC running the campus Email and UNIX shell/file sharing services, we first ran a password cracker against our users’ accounts. The way that these “brute force” attacks work is that an attacker will attempt login using dictionary words, names and other things. The most common password, by far, was actually password. Among the top 5 were also fuckyou, ncc1701, various people’s names (obviously people choose their girlfriend/boyfriend/mother/father’s names for passwords), and in several dozen cases people actually used their usernames as their passwords. These days many websites will prevent you from using a weak password. So don’t be dumb. Pick a good password. It should not be dictionary-word based. Even replacing numbers with letters is easily decoded by brute-force attackers, so don’t think you’re fooling anyone. Don’t use anyone’s name in your password either. And don’t even use a combination of dictionary words, names, and l33t-sp34k numbering. The brute-force password crackers are at least as smart as you and have a lot more time and computing power.
So as a website operator or systems engineer what should I do? You should act immediately if you have not already. If you run your own web server, upgrade your OpenSSL package right this goddamn minute. Also, since the library is loaded in memory at service-start time you will need to restart your web server or any other service relying on the flawed library. To be safe, just reboot after you upgrade the package. There also might be code that was built statically-linked to the flawed library. In that case you’ll have to recompile and re-install it. Run common vulnerability scanners like nessus (or other tools available) against everything you have running. If you have a website that’s hosted elsewhere, contact your hosting provider immediately. Make sure they are patched and no longer vulnerable. Also, replace your SSL key and certificate. Some will say that this step is overly paranoid, and your hosting provider might even give you shit for insisting that they generate a new key and certificate for you. As I stated above, while these researchers responsibly disclosed this bug, the possibility that this was out in the wild before can not be dismissed.
- December 2011: Bug is introduced into the hearbeat function of the OpenSSL library
- March 14th 2012: OpenSSL v1.0.1 released into the wild with the bug
- March? 2014: Bug is discovered by some combination of Neel Mehta at Google Security and Matti Kamunen, Antti Karljalainen and Riku Hietamäki from Codenomicon and reported to the OpenSSL project.
- >March-April 2014: NCSC-FI and OpenSSL work to notify some subset of stakeholders ahead of time of the vunerability, apparently with a patch and a workaround
- April 7th 2014: News breaks of the vulnerability and the NCSC-FI team needs to go public with it so the rest of the world can fix their web servers
On The Asshats at straightprideuk.com (and the Streisand Effect)
Posted by benoc in Uncategorized on August 12, 2013
So there’s this group out there in the UK: Straight Pride UK . I hadn’t heard about them until today, and I doubt pretty much anyone in the world had (other than maybe their own immediate circle of homophobic, conservative nitwits). And that’s fine. If you want to read the whole story about what transpired with them, go check out the story at popehat’s most excellent blog. But here’s the short version: a history student writes to them, identifying himself as a freelance journalist, and asking them a few pointed questions about their positions (mainly that straight people are getting “silenced and abused” and the mounting censorship in the UK). They write back in a document labeled as a “press release.” Fine, so far so good, they’re entitled to their own opinions, and they’re letting people know. But here’s where they end up going over the edge: the student writes back asking for clarification on a couple of his questions, and mentions that he’s going to post their conversation on his blog. Straightpride then responds with an angry DMCA takedown letter, complaining that the student did not have the right to publish the email/press release (uh yeah, what does “press release” mean again?). What really sucks is that wordpress.com preemptively actually took down his post, in violation of just about every bit of common sense one would expect them to have.
The Internet, however, detects censorship as damage and routes around it. Here is the google cache of his original article. And his actual response to the bogus takedown and threats is on his blog. Now, the kind folks at Straight Pride UK are getting a serious taste of the Streisand Effect (the internet phenomenon whereby an attempt to censor information will actually increase publicity of that information exponentially and screw you over, named after a failed attempt by Barbara Streisand to censor aerial photos of her house way back when). Many other bloggers (including me) are re-posting the censored article / letter from Straight Pride UK. So, what was before just one dude pointing out a homophobic nutty group, is now the whole internet pointing and laughing. And they still don’t get it:
Anyways, without further ado, here is the original post by Oliver exposing these asshats. Almost makes me ashamed to be straight:
It’s Great When You’re Straight… Yeah
There has never been a better time to be gay in this country. LGBTI people will soon enjoy full marriage equality,public acceptance of homosexuality is at an all time high, and generally a consensus has developed that it’s really not that big of a deal what consenting adults do in the privacy of their bedrooms. The debate on Gay Marriage in the House of Commons was marred by a few old reactionaries, true, but generally it’s become accepted that full rights for LGBTI people is inevitable and desirable. Thank God.
But some are deeply troubled by this unfaltering march toward common decency, and they call themselves the Straight Pride movement.
Determined to raise awareness of the “heterosexual part of our society”, Straight Pride believe that a militant gay lobby has hijacked the debate on sexuality in this country, and encourage their members, among other things, to “come out” as straight, posting on their Facebook page that:
“Coming out as Straight or heterosexual in todays politically correct world is an extremely challenging experience. It is often distressing and evokes emotions of fear, relief, pride and embarrassment.”
I asked them some questions.
First of all, what prompted you to set up Straight Pride UK?
Straight Pride is a small group of heterosexual individuals who joined together after seeing the rights of people who have opposing views to homosexuality trampled over and, quite frankly, oppressed.
With the current political situation in the United Kingdom with Gay Marriage passing, everyone is being forced to accept homosexuals, and other chosen lifestyles and behaviours, no matter their opposing views. Straight Pride has seen people sued, and businesses affected, all because the homosexual community do not like people having a view or opinion that differs from theirs.
Are your beliefs linked to religion? How many of you derive your views from scripture?
Straight Pride aims are neutral and we do not follow religion, but we do support people who are oppressed for being religious. Only today, Straight Pride see that two homosexual parents are planning to sue the Church because they ‘cannot get what they want’. This is aggressive behaviour and this is the reason why people have strong objections to homosexuals.
You say that one of your goals is “to raise awareness of the heterosexual part of society”. Why do you feel this is necessary?
The Straight Pride mission is to make sure that the default setting for humanity is not forgotten and that heterosexuals are allowed to have a voice and speak out against being oppressed because of the politically correct Government.
Straight Pride feel need to raise awareness of heterosexuality, family values, morals, and traditional lifestyles and relationships.
Your website states that “Homosexuals have more rights than others”. What rights specifically do LGBTI people have that straight people are denied?
Homosexuals do currently have more rights than heterosexuals, their rights can trump those of others, religious or not. Heterosexuals cannot speak out against homosexuals, but homosexuals are free to call people bigots who don’t agree with homosexuality, heterosexuals, religious or not, cannot refuse to serve or accommodate homosexuals, if they do, they face being sued, this has already happened.
Straight Pride believe anyone should be able to refuse service and speak out against something they do not like or support.
There is a hotel in the south of England, called Hamilton Hall which only accepts homosexuals – if this is allowed, then hotels should have the choice and right to who they accommodate.
What has been the response to your campaign?
The response to Straight Pride’s formation has been as expected; hostile, threatening, and aggressive. Homosexuals do not like anyone challenging them or their behaviour.
We have had support from many people saying that if homosexuals can have a Pride March, and then equality should allow Heterosexuals to have one too. After all, the homosexual movement want everyone to have equality.
Why would you say that heterosexuality the “natural orientation”?
Heterosexuality is the default setting for the human race, this is what creates life, if everyone made the decision to be homosexual, life would stop. People are radicalised to become homosexual, it is promoted to be ‘okay’ and right by the many groups that have sprung up.
Marriage is a man and a woman, homosexuals had Civil Partnerships, which was identical to Marriage with all the same rights, they wanted to destroy Marriage and have successfully done so.
If you could pick one historical figure to be the symbol of straight pride (just as figures like Alan Turing, Judith Butler or Peter Tatchell would be for Gay Pride) which would you choose?
Straight Pride would praise Margaret Thatcher for her stance on Section 28, which meant that children were not taught about homosexuality, as this should not on the curriculum.
More recently, Straight Pride admire President Vladimir Putin of Russia for his stance and support of his country’s traditional values.
How do you react to anti-gay attacks and movements in Russia and parts of Africa?
Straight Pride support what Russia and Africa is doing, these country have morals and are listening to their majorities. These countries are not ‘anti-gay’ – that is a term always used by the Homosexual Agenda to play the victim and suppress opinions and views of those against it.
These countries have passed laws, these laws are to be respected and no other country should interfere with another country’s laws or legislation.
We have country wide events which our members attend, and ask people their opinions and views, on such event at Glastonbury this year was very positive with the majority of people we asked, replied they were happily heterosexual.
For the record, Straight Pride did not respond to these questions:
“Pride” movements such as Gay Pride and Black Pride were making the argument that the stigma against them meant that proclaiming their “pride” was an act of liberation from oppression. Can being heterosexually really compare?
A problem that Gay rights activists cite is the issue of bullying, and the effect this can have on young LGBT people. Do you think a similar problem exists with straight children being bullied by gay children?
I will obviously add to this if they do respond.