oss-sec mailing list archives

Re: CVE request: firefox doesn't (re)validate certificates when loading HTTPS page


From: Josh Bressers <bressers () redhat com>
Date: Tue, 31 May 2011 15:42:58 -0400 (EDT)

I'm going to save this one for upstream. It's possible they've already
assigned something (Mozilla is a CNA).

I've CC'd Reed in the rare event he doesn't know about this.

Thanks.

-- 
    JB

----- Original Message -----
Hi,
found this in RH's bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=709165

Vincent Danen 2011-05-30 18:38:43 EDT

A Debian bug report [1] indicated that Firefox 4.0.x handled the
validation/revalidation of SSL certificates improperly. If a user were
to
visit a site with an untrusted certificate, Firefox would correctly
display the
warning about the untrusted connection. If a user were to confirm the
security
exception for a single session (not check off the "permanently store
this
exception"), then restart the browser and re-load the page, the
contents of the
page would be displayed from the Firefox cache. Upon reloading the
page, the
security warning would appear, but incorrectly indicates that the site
provides
a valid, verified certificate and there is no way to confirm the
exception.
[...]

--
Thomas Biege <thomas () suse de>, SUSE LINUX, Security Support & Auditing
SUSE LINUX GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB
21284 (AG Nürnberg
--
Wer aufhoert besser werden zu wollen, hoert auf gut zu sein.
-- Marie von Ebner-Eschenbach


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