TITLE:
Firefox "View Image" Local Resource Linking Weakness

SECUNIA ADVISORY ID:
SA19698

VERIFY ADVISORY:
http://secunia.com/advisories/19698/

CRITICAL:
Not critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
Mozilla Firefox 1.x
http://secunia.com/product/4227/

DESCRIPTION:
PSPFrenzy has discovered a weakness in Firefox, which can be
exploited by malicious people to bypass certain security
restrictions.

Internet web sites are normally not allowed to link to local
resources. It is, however, possible by a malicious web site to open
local content in the browser by tricking a user into right-clicking
and choosing "View Image" on a broken image, which is referencing a
local resource (e.g. via the file: URI handler).

NOTE: This does not pose any direct security impact by itself, but
may be exploited in combination with other vulnerabilities.

The weakness has been confirmed in version 1.5.0.2. Other versions
may also be affected.

SOLUTION:
Do not use the "View Image" functionality on untrusted web sites.

PROVIDED AND/OR DISCOVERED BY:
PSPFrenzy

ORIGINAL ADVISORY:
https://bugzilla.mozilla.org/show_bug.cgi?id=334341

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