Google Services Notifier Chrome extension XSS/CSRF

Friday, June 18, 2010
######################################
Google Services Notifier Chrome extension XSS/CSRF
extension:https://chrome.google.com/extensions/detail/dmgbflokapnkfnegeigclohhplnflgie
advisore:http://lostmon.blogspot.com/2010/06/google-services-notifier-chrome.html
Exploit available:yes vendor notify : NO
#######################################

So in this case "Notifier for Google Wave Chrome"
has a flaw that allow attackers to make XSS style attacks.

All extensions runs over his origin and no have way to altered data from extension
or get sensitive data like , email account or password etc..

if we look how many users have instaled this extension =>
https://chrome.google.com/extensions/detail/dmgbflokapnkfnegeigclohhplnflgie
109 users have instaled it (WoW)

############
explanation
############

Google Services Notifier allows users to view wen they have a new wave and
view a preview of it ....

"Keep you update with Google services like Google Mail,Blogger,Reader,YouTube,
Google Docs, Google Wave etc. More services will be added soon."

If a attacker compose a new mail with html or javascript code in
subject & send it to victim´s the code is executed wen Victim´s click in the
extension to view a preview of mail.

So for exploit we need to compose a "special" mail
for example if we put directly in the mail subject a iframe like
"><iframe src="javascript:alert(location.href);"></iframe>
in the two cases the alert is executed wen try to preview the mail
with the extension :) it is executed in context location.href value is
"about:blank"

For example send a mail With a logout acction in google wave in body
"><iframe src="https://wave.google.com/wave/logout"></iframe>
it closes the sesion on google wave , this is a CSRF.

######################€nd#################################
.
Thnx for your time !!!
atentamente:
Lostmon (lostmon@gmail.com)
Web-Blog: http://lostmon.blogspot.com/
Google group: http://groups.google.com/group/lostmon (new)
--
La curiosidad es lo que hace mover la mente....

Notifier for Google Wave Chrome extension XSS/CSRF

######################################
Notifier for Google Wave Chrome extension XSS/CSRF
extension:https://chrome.google.com/extensions/detail/aphncaagnlabkeipnbbicmcahnamibgb
advisore:http://lostmon.blogspot.com/2010/06/notifier-for-google-wave-chrome.html
Exploit available:yes vendor notify : NO
#######################################

So in this case "Notifier for Google Wave Chrome"
has a flaw that allow attackers to make XSS style attacks.

All extensions runs over his origin and no have way to altered data from extension
or get sensitive data like , email account or password etc..

if we look how many users have instaled this extension =>
https://chrome.google.com/extensions/detail/aphncaagnlabkeipnbbicmcahnamibgb
56,542 users have instaled it (WoW)

############
explanation
############

Notifier for Google Wave allows users to view wen they have a new wave and
view a preview of it ....

If a attacker compose a new wave with html or javascript code in
body & send it to victim´s the code is executed wen Victim´s click in the
extension to view a preview of wave.

So for exploit we need to compose a "special" wave
for example if we put directly in the mail body a iframe like
"><iframe src="javascript:alert(location.href);"></iframe>
in the two cases the alert is executed wen try to preview the wave
with the extension :) it is executed in context location.href value is
"about:blank"

For example send a wave With a logout acction in google wave in body
"><iframe src="https://wave.google.com/wave/logout"></iframe>
it closes the sesion on google wave , this is a CSRF.

######################€nd#################################
.

Thnx for your time !!!

atentamente:
Lostmon (lostmon@gmail.com)
Web-Blog: http://lostmon.blogspot.com/
Google group: http://groups.google.com/group/lostmon (new)
--
La curiosidad es lo que hace mover la mente....

Gmail Checker plus Chrome extension XSS/CSRF II

Thursday, June 17, 2010
######################################
Gmail Checker plus Chrome extension XSS/CSRF II
extension: https://chrome.google.com/extensions/detail/gffjhibehnempbkeheiccaincokdjbfe
advisore:http://lostmon.blogspot.com/2010/06/gmail-checker-plus-chrome-extension.html
Exploit available:yes vendor notify: NO
#######################################

So in this case "Google Mail Checker Plus" version 1.1.7 (2010-02-10)
has a flaw that allow attackers to make XSS style attacks.

All extensions runs over his origin and no have way to altered data from extension
or get sensitive data like , email account or password etc..

if we look how many users have instaled this extension =>
https://chrome.google.com/extensions/detail/gffjhibehnempbkeheiccaincokdjbfe
303,711 users have instaled it (WoW)

############
explanation
############

Google Mail Checker Plus allows users to view wen they have a new mail and
view a preview of the mail ....

If a attacker compose a new mail with html or javascript code in mail
body & send it to victim´s the code is executed wen Victim´s click in the
extension to view a preview of mail.

So for exploit we need to compose a "special" mail
for example if we put directly in the mail body a iframe like
"><iframe src="javascript:alert(location.href);"></iframe>
the extension shows this code in plain text and the alert isn´t executed...
them we need to use a Feature from gmail ( auto conver links in clicable urls)
them we can compose a email body with a http link like
http://"><iframe src="javascript:alert(location.href);"></iframe>
or compose a mail link like :
lalala@"><iframe src="javascript:alert(location.href);"></iframe>.com
in the two cases the alert is executed wen try to preview the email
with the extension :) it is executed in context location.href value is
"about:blank"


Gmail is a safe place , but the extensions to manage it, can be a potential
vector to attack.

For example send a email With a logout acction in gmail in body
http://"><iframe src="https://mail.google.com/mail/?logout&hl=es"></iframe>
it closes the sesion on gmail , this is a CSRF.
also if the user has mark option to show notifications on desktop this issue execute the iframe too in the desktop notifications window and can cause to a denial of service of extension, for example if the victim´s try to change any option in options page from extension :P

So we have dispute it in http://code.google.com/p/chromium/issues/detail?id=45401
The developer has release a patch version in trunk for other issues what i disclose before
see for references for previous vulns => OSVDB ID :65459 and OSVDB ID: 65460
previous patch =>
http://github.com/AndersSahlin/MailCheckerPlus/blob/54ab118e505feae819e676c8e525e8fe5409c981/src/mailaccount.class.js
and see diff => http://github.com/AndersSahlin/MailCheckerPlus/commit/54ab118e505feae819e676c8e525e8fe5409c981#diff-0

I release it as 0-day and no notify to vendor because
in the previous issues , he patch the vulns and don´t
make any reference to it and stealing credits on discover
Them i release this new vulns without notify developer :)


UPDATED :Now the extension in about secition reflects the vulnerability and credit it to me :)



######################€nd#################################
.

Thnx for your time !!!

atentamente:
Lostmon (lostmon@gmail.com)
Web-Blog: http://lostmon.blogspot.com/
Google group: http://groups.google.com/group/lostmon (new)
--
La curiosidad es lo que hace mover la mente....

Gmail Checker plus Chrome extension XSS

Thursday, June 03, 2010
######################################
Gmail Checker plus Chrome extension XSS
extension: https://chrome.google.com/extensions/detail/gffjhibehnempbkeheiccaincokdjbfe
advisore:http://lostmon.blogspot.com/2010/06/gmail-checker-plus-chrome-extension-xss.html
Exploit available:yes
#######################################

So in this case "Google Mail Checker Plus" version 1.1.7 (2010-02-10)
has a flaw that allow attackers to make XSS style attacks.

All extensions runs over his origin and no have way to altered data from extension or get sensitive data like , email account or password etc..

if we look how many users have instaled this extension =>
https://chrome.google.com/extensions/detail/gffjhibehnempbkeheiccaincokdjbfe
303,711 users have instaled it (WoW)

############
explanation
############

Google Mail Checker Plus allows users to view wen they have a new mail and
view a preview of the mail ....

if a attacker compose a new mail with html or javascript code in subject form field and send it to victim´s the code is executed wen Victim´s click in the extension to view the mail and wen victim´s accept the alert and view a preview of mail the iframe is executed too.

Gmail is a safe place , but the extension to manage it can be a potential
vector to attack it.

For example send a email With a logout acction in gmail in subject
"><iframe src="https://mail.google.com/mail/?logout&hl=es"></iframe>
it closes the sesion on gmmail , this is a XSRF , and , in the case what you say aa
it is executed in context and the location.href value is "about:blank"

So we have dispute it in http://code.google.com/p/chromium/issues/detail?id=45401
The developer has release a patch version in trunk =>
http://github.com/AndersSahlin/MailCheckerPlus/blob/54ab118e505feae819e676c8e525e8fe5409c981/src/mailaccount.class.js
please donload it and copy to your extension folder to solve it.

See Diff => http://github.com/AndersSahlin/MailCheckerPlus/commit/54ab118e505feae819e676c8e525e8fe5409c981#diff-0

######################€nd#################################
.

Thnx for your time !!!

atentamente:
Lostmon (lostmon@gmail.com)
Web-Blog: http://lostmon.blogspot.com/
Google group: http://groups.google.com/group/lostmon (new)
--
La curiosidad es lo que hace mover la mente....

Latest OSVDB Vulnerabilities

 

Browse

About:Me

My blog:http://lostmon.blogspot.com
Mail:Lostmon@gmail.com
Lostmon Google group
Lostmon@googlegroups.com

La curiosidad es lo que hace
mover la mente...