Ubuntu Security :: Forged CA Certificate In Firefox 3.6
Mar 25, 2010
Having read how a private company is providing governments (and probably criminals) with a box that can listen in on SSL traffic by the use of forged CA certificates - [URL]. It turns out there's already a forged certificate in Firefox 3.6.
Go to Edit>Preferences>Advanced>Encryption>View Certificates and look for 'Equifax Secure Inc.' - You should see a proof-of-concept rogue certificate called 'MD5 Collisions Inc.' and a link to phreedom which explains the method used to generate it. That little lock doesn't necessarily mean that you're safe...
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Dec 6, 2010
Firefox 3.6.12 on Ubuntu 10.10 on my desktop computer is reporting a "this connection is untrusted" error for sites that have security certificates provided by COMODO. Yet, the same sites work fine in Firefox 3.6.x on Windows XP, or Chromium in Ubuntu. Here is the more specific message: "The certificate is not trusted because the issuer certificate is unknown.
(Error code: sec_error_unknown_issuer)" The issuer is listed as "COMODO High Assurance Secure Server CA." Here are some examples that throw this error for me:[URL]... It appears that there was some controversy with COMODO and Mozilla (due to bad behavior by COMODO) in the past, but all I can find on that indicates that this should be not an issue any longer.
Anybody with ideas?
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May 19, 2011
I get an Untrusted Connection error when I visit this site to login into my GRE account, and I cannot add it as an exception, in Mozilla Firefox 4.0 on Ubuntu 11.04. When I visit the site using Chrome, I have no issues. Is this a bug in Firefox's certificate management? I'm using Ubuntu 11.04. I do not get this error in Windows' Firefox 4.0.
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Jun 20, 2011
I had to do a hard shut down on my linux computer. Every since then it is not working properly and I get an invalid certificate on every page.I have never upgraded Debian since I installed it two years ago. With my experience with Gentoo I have found that upgrades can be a problem and it worked fine so I never messed with it.
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Apr 2, 2009
I am having issues with using OpenSSL. How do I view the currently used certificate? Also, do you know of a good site that has instructions on how to install a certificate. The previous user installed a GoDaddy cert for an FTP server and I need to update it because it's expiring real soon.
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Jun 15, 2010
Got F13 installed yesterday, this afternoon I suddenly started getting Secure Connection Failed warnings. I'm not sure whose problem it is because it mentions uses an invalid security certificate.This certificate is only valid for *.opendns.com(Error Code: ssl_error_bad_cert_domain)It continues to say that someone could be impersonating the actual server. I am still receiving mail through google and my google calendars seem to be working. I do use OpenDNS for my DNS instead of my ISPs (Comcast which would very often slow down) and obviously I use IMAP mail with google on Thunderbird. So is it google, or OpenDNS, or Thunderbird that has a problem. Firefox does not seem to have a problem
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Apr 14, 2011
How can I add an existing certificate (pem format) as trusted in Fedora via the command line?Do I have to copy the files to a certain keystore? Where does Fedora store the trusted certificates
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Apr 7, 2010
When running MUTT on a RHEL 5.4 box, I get the message:
------------------------------------------------------
Server certificate has expired
This certificate belongs to:
localhost.localdomain
Unknown
SomeOrganization
SomeOrganizationalUnit
[URL]
I choose "accept always", but the same message appears next time. I do not wish to have a certificate requirement for MUTT and did not intentionally set the program up to include this feature. How can I get rid of it? My second choice would be to get a new certificate, but then I have to go through this every year. I have MUTT working on two other servers and this does not happen.
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Mar 19, 2010
I was trying to configure user authentication in SSH using certificate method.As u all know the usual way of authentication is using the ssh-keygen method. But i want the another method where we create a certificate key and send it to the CA, which signs it and send back etc etc.I cannot find any unique procedure in the net to configure this method.
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Apr 25, 2009
I just upgraded from Ubuntu 8.10 to 9.04. I installed Webmin 1.470 but when I tried to run it from Firefox 3.09 I got the following message.
localhost:10000 uses an invalid security certificate. The certificate is not trusted because it is self signed. (Error code: sec_error_untrusted_issuer).
Never had this problem with Ubuntu 8.04.
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Mar 9, 2011
I want to enable sshd from Internet, but I want to secure it as much as possible.Therefore, despite the fact that the service will run on a tcp port above 2000 to prevent most scans, I would like to :- First, force the use of a client certificate, to avoid brute force attack on my users/passwords- second force the use of a username/password to avoid someone having access to my system just by stealing my key..When I look at the configuration, it's possible to enable both, but one of them is sufficient to login, but I can't find how to make them both mandatory...
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Jan 5, 2011
The problem is here:When I was open gmail in my system Certificate Error is coming. The error details:
This Connection is Untrusted You have asked Firefox to connect securely to url, but we can't confirm that your connection is secure. Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site's identity can't be verified.
What Should I Do? If you usually connect to this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn't continue.
code....
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Oct 7, 2010
At the login webpage of <[URL]>, the Time Warner Cable (TWC) Webmail site, I am immediately confronted with a warning that the Security Certificate is invalid & that the site is untrusted. This occurs with Firefox, Seamonkey, & Konqueror. This does not occur on Microsoft or Apple systems; I have checked other colleagues machines. I have manually overridden the warning & everything functions fine. I have contacted TWC & am awaiting their tests. But, I would like some independent corroboration from other users in the Linux community. Could some of you perform the test yourself on this URL? An error will be readily apparent.
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Jan 25, 2010
Occasionally my machine displays the following warning whenever left to itself for an hour or so. "www.windowsvistatestdrive.com:443 uses an invalid security certificate. The certificate expired on 09/16/2009 10:52 AM. (Error code: sec_error_expired_certificate)"
I am not trying to access this site. It is not always the same url. My machine, described below, is networked to an XP machine which recently had to be recovered after a viral attack. Since I am not usually interested I decline to use the certificate and the warning goes away.
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Jan 4, 2010
I am trying to renew the existing SSL certificate by using genkey for our shopping website. i havent seen any information how to generate a new certificate for. Is any one could tell me how to change SSL certificates?
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Aug 24, 2011
I'm trying to install an Ubuntu cloud on my home network - I've been following this guide. When I arrived at STEP 6: Install an image from the store PART 3: Click on the Store tab I get the following error message on the page: Error 60: server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
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May 10, 2010
Girlfriend with a problem: she needs to sign up at the unemployment office in Spain. She is here in China. But for reasons unknown, she can't access the bit which she needs to. It says: 'can't set the browser' Java is enabled and so on, we read the instructions. On her windoze computer, she has a digital certificate. I copied it onto my mem-stick. When I try to copy it from my mem-stick to my Linux machine, I can't. Not even as root! The folder is called 'certificado digital' and contains two folders:
Trash.(tilde)1 and VM_Ware_Workstation They both have some kind of encrypted stuff inside. Can this certificate be installed on my machine?? Trash has 5 things, VM_Ware_Workstation has 3 things. The guy who set this up for her told her she must use Mozilla. Is a certificate only valid with a particular browser?
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Apr 14, 2010
this is not on the master node, but rather the node that is being replicated to. The problem occurs when i query using ldapsearch or an `getent passwd` EG ldapsearch:
Code:
[root@cakeslave ~]# ldapsearch -x -b 'cn=Christian Unger,ou=People,dc=example,dc=org' -D "cn=replica,dc=example,dc=org" -H ldaps://cakeslave.example.org -w cakewalk
ldap_bind: Can't contact LDAP server (-1)
additional info: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
[code]....
The cacert.pem in /etc/ssl/certs and /etc/openldap/certificate are identical (check using md5sum). I have done an strace and found that it looks at /etc/pki/tls/cert.pem .
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Apr 8, 2010
Does anyone know when we'll see Firefox 3.0.19 packaged for 8.04 LTS? I'm still stuck at 3.0.18. And what will happen after this? My understanding is that after .19 Mozilla is dropping support for FF 3.0.
Upgrade policies not withstanding, I find it rather annoying when an "LTS" release doesn't keep up with the most security-critical package in the distro, the browser. 8.04 LTS should have moved to FF 3.5+ a *long* time ago. Now it seems it will be forced to do so or else just forget about browser updates for the last year of 8.04?
I know I can install the current Firefox with ubuntuzilla, I just keep wishing Ubuntu would do it for me.
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Jul 18, 2009
Firefox 3.5 has a critical java script vulnerability as noted in the recent news. I had to manually update to 3.5.1 using the mozilla tarball because there's still no Firefox 3.5.1 in Fedora Updates or even Fedora Updates Testing repositories. Is this normal? I didn't want to resort to using the mozilla one because now I can't use flash (my system is 64 bit and mozilla only seems to offer a 32bit tar file of Firefox) and having two Firefoxs means dealing with the ProfileManager, separate bookmarks and so on.
I'm trying to find out if I'm just looking in the wrong place, I tried the normal mirrors for "updates" for Fedora 11 and then updates-testing and also the baseurl for "updates" to get rid of the mirror update delay. None of them seem to have 3.5.1 ?
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May 9, 2010
Using slackware 12.2, xfce, Firefox 3.0.16 and for the past few days i have been getting Persistent System Security Window that looks like MS Firewall and you can't click on the X or Cancel because then it activates a so called security analysis with green progress bar. I open a terminal real quick and issue pkill firefox command.I have been trying to get to the basicconfig site to follow tutorial on firefox security update but that window keeps comming back.I emptied out my /tmp files but i am still having same problem and don't know what to do
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Jun 14, 2010
Newbie here,
I'm thinking of moving mostly to linux to get away from the security holes in Windows. And I have some questions...
How secure is Firefox for doing online banking?
Sometimes I have run into a situation where the bank doesn't support anything but Windows explorer when accessing my accounts. Can this be gotten around safely in Linux?
If so, How?
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Aug 16, 2010
There is a lot of talk regarding the Zeus Trojan at the moment.
Are we safe if we use The Live CD and Firefox?
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Apr 11, 2011
I followed instructions for installing vidalia and polipo and everything seems to be working ok, but I cannot connect to tor from firefox using torbutton. I didn't edit configurations other than downloaded those for polipo, as described in the link above.I read that somebody got it working with foxyproxy better than torbutton, but torbutton is customised specifically to enhance tor, so I'd prefer to use it unless there issomething better.torbutton test fails with: Quote:Tor proxy test: Local HTTP Proxy is unreachable. Is Polipo running properly?Message log from tor:
Code:
Apr 11 00:39:51.187 [Notice] Tor v0.2.1.30. This is experimental software. Do not rely on it for strong anonymity. (Running on Linux i686)
[code]...
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Jan 12, 2010
im using firefox 3.5.7 with ubuntu 9.10 but firefox since 3.5.6 and 3.5.7 keeps crashing a lot-just now it crashed my entire system-the whole screen went black. So to that end is use of opera or chrome secure for ubuntu?
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Apr 28, 2010
Anyone set up an Apparmor profile for Firefox?
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Jun 6, 2010
I don`t know how did that happen but now after reboot my firefox starts with pocker and porno web-pages. I don`t play pocker, never did. Yes, a couple of times I did watch... But I didn`t install or change anything (extentions or add-ons) in firefox. I acrually didn`t change anything in system and now firefox starts up with those adverts. In settings of firefox I have "show last opened pages". Of course I didn`t close ever my firefox with a couple of adverts. And it does only after reboot. So, if I close it now and open again it will show the last pages. But after reboot ... Well, if I saw something like that in windows I`d think that there is a virus or something else like adverts-virus but I`m in kubuntu. Kubuntu 10.04.
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Jul 11, 2010
For a while now, firefox has been prompting gnome-keyring (twice)
There is one applet i know of on my system that wants me to enter my keyring pw twice "CPU Frequency Scaling Monitor" (i have a core2-duo cpu, a monitor for each cpu), but i have no clue why ff would be invoking a change in how ubuntu controls that app.
Is there any way of finding out, which application (or perhaps an add-on?) is actually asking for my keyring-pw (the input window just says "an application..." not like e.g. "synaptic package manager...".
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Aug 8, 2010
Inspite i have read through the sticky link but i have a query.
Example,
If you have your firefox under enforce mode in apparmor,are you still able to install an update / addon to it to a newer version.
If not,how to disable the apparmor in firefox.Is it as below?
Code:
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Nov 12, 2010
Tried the apparmor profile for Firefox. how to turn it off. No matter what I do, it still shows up as being on in apparmor status.
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