[SECURITY] Another compromised Certificate Authority - maemo.org

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freemangordon	2013-01-05 , 19:54
Posts: 3,074 \| Thanked: 12,964 times \| Joined on Mar 2010 @ Sofia,Bulgaria	#1

Beware:

http://googleonlinesecurity.blogspot...-security.html

Fremantle Community SSU will issue an update ASAP.

Maybe Harmattan users should call Nokia Support for an update. Or it is HiFo that should do that, I don't know. Please someone from the HiFo board comment on what should Harmattan users do (in light of the "email to elop" concerns)

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Fuzzillogic	2013-01-05 , 21:42
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Originally Posted by freemangordon

Beware:
Maybe Harmattan users should call Nokia Support for an update. Or it is HiFo that should do that, I don't know. Please someone from the HiFo board comment on what should Harmattan users do (in light of the "email to elop" concerns)

I already tried, but I doubt this would suffice. More people should mention this... no, SHOUT and B*TCH about this. Nokia's negligence so far isn't acceptable, IMNSHO.

Meanwhile, since I have incepted my device I tried to fix it myself:

Code:

~ $ ariadne mv /etc/ssl/certs/d937b34e05fdd9cf9f1216aeb6892feb253a881c.pem /etc/ssl/certs/d937b34e05fdd9cf9f1216aeb6892feb253a881c.pem.donttrust

This should disable the TURKTRUST certificate on the N9. But I still get an "access denied"

Also, this might be under the protection of Aegis (which would be a good thing) and thus might lead to a MALF next boot. My Linux-fu isn't high enough to know how to fix it... Perhaps someone else can?

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	coderus	2013-01-05 , 21:51
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ssl certs are not under aegis protection
just enter full credentials mode by "ariadne sh" and then move/delete untrusted cert

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rainisto	2013-01-05 , 22:20
Posts: 1,067 \| Thanked: 2,383 times \| Joined on Jan 2012 @ Finland	#4

if you want the 'proper' way to remove it, then the right command would be:

opensh -c "acmcli -C aegis-certman-common-ca::CertCACommonAdd -lc common-ca -r d937b34e05fdd9cf9f1216aeb6892feb253a881c"

This assumes that you have installed opensh with all the capas. You can run the acmcli with all capa inception shell too.

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Fuzzillogic	2013-01-05 , 22:31
Posts: 479 \| Thanked: 1,284 times \| Joined on Jan 2012 @ Enschede, The Netherlands	#5

Thanks rainisto, that fixed it

The aegis-certman-common-ca package installed the certificates into /usr/share/aegis-certman-common-ca, any idea if that is used for something? The turktrust certificate over there can be (re)moved using more conventional ways tho.

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rainisto	2013-01-05 , 22:46
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you don't need to remove any files after running that acmcli command. They will not be used by harmattan system.

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	casketizer	2013-01-06 , 03:43
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Is it a coincidence this cert is the first in the Certmanager list?

Can certs be revoked manually on N900?

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nbedford	2013-01-06 , 12:53
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Is opensh needed? or is open mode + devel-su + develsh enough?

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	peterleinchen	2013-01-06 , 14:00
	Posts: 4,118 \| Thanked: 8,901 times \| Joined on Aug 2010 @ Ruhrgebiet, Germany	#9

Originally Posted by casketizer

Is it a coincidence this cert is the first in the Certmanager list?

No, it is due to the cert name begins with "(".
You may check with

Code:

dbus-send --system --type=method_call --dest=com.nokia.osso_browser /com/nokia/osso_browser/request com.nokia.osso_browser.load_url string:"chrome://pippki/content/certManager.xul"

Originally Posted by casketizer

Can certs be revoked manually on N900?

Yes, there is such possibility. I will put a script (produced at DigiNotar times) at the end of post.

Originally Posted by rainisto

if you want the 'proper' way to remove it, then the right command would be:
opensh -c "acmcli -C aegis-certman-common-ca::CertCACommonAdd -lc common-ca -r d937b34e05fdd9cf9f1216aeb6892feb253a881c"

For N900 users, please refer to below script.
For N9 users, do we need to delete that CA also from browser? (but according to open mentioned bug, there is no such possibility?)

Simple script/guide to remove fraudulent CAs:

Code:

#!/bin/sh
#removing fraudulent CAs

echo enter the cert\(ifier\) You are looking for:
read cert
cmcli -T common-ca -L | grep "$cert"

echo now copy the full cert ID ...
read nothing

echo and give it as input \(for removal\)
read certID

if [ `id -u` != 0 ] ; then
    sudo cp /etc/certs/common-ca/$certID.pem /etc/certs/common-ca/$certID.pem.old
    sudo cmcli -c common-ca -r $certID
else
    cp /etc/certs/common-ca/$certID.pem /etc/certs/common-ca/$certID.pem.old
    cmcli -c common-ca -r $certID
fi

echo now open microb and goto
echo chrome://pippki/content/certManager.xul 
echo and delete the cert also there in the CA manager
read nothing

dbus-send --system --type=method_call --dest=com.nokia.osso_browser /com/nokia/osso_browser/request com.nokia.osso_browser.load_url string:"chrome://pippki/content/certManager.xul"

--edit
BUT, one more question arises here:
I do see two certificate IDs for TÜRKTRUST

~ $ cmcli -T common-ca -L | grep "TÜRK"
c126ef0d847fc578cabfa616229289c42af952e7 TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı
d937b34e05fdd9cf9f1216aeb6892feb253a881c TÜRKTRUST Elektronik Sertifika Hizmet Sağlayıcısı

and also in browsers

chrome://pippki/content/certManager.xul

they do appear twice.
So maybe for harmattan users, you also check bettwer twice?

I have no idea, why we do have them twice. Or if we need to block/delete both. Or if only one is fraudulent ...

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Last edited by peterleinchen; 2013-01-06 at 15:25.

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	Aranel	2013-01-06 , 15:19
	Posts: 301 \| Thanked: 227 times \| Joined on Nov 2009 @ Turkey	#10

https://blog.mozilla.org/security/20...t-certficates/

According to this page Mozilla is revoking both certificates, so there's no reason why we should not.

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