33522 : Fizzle Extension for Mozilla Firefox Feed Data XSS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
4	754	over 4 years ago	over 3 years ago	1 times	90%

Timeline

Disclosure Date	Exploit Publish Date
2007-03-24	2007-03-24

Keywords

RSS

Description

The Fizzle add-on for Mozilla Firefox contains a flaw that allows a remote cross site scripting attack. This flaw exists because the application does not validate RSS feed data upon converting HTML entity code back into ASCII equivalents. This could allow a user to create a specially crafted feed that would execute untrusted code in a user's browser within a trusted context of the browser, leading to a loss of integrity.

Classification

Location: Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Integrity
Exploit: Exploit Public
Disclosure: OSVDB Verified
OSVDB: Web Related

Technical

Mozilla has removed the add-on page for this extension, however Google cache shows that the author of the extension had posted a notice verifying the vulnerability.

Solution

Currently, there are no known upgrades or patches to correct this issue. It is possible to correct the flaw by implementing the following workaround(s):
- Do not subscribe to untrusted XML feeds
- Disallow HTML within an XML feed if the option is present.

Products

Andy Frank

Fizzle

0.5

References

CVE ID: 2007-1678 (see also: NVD)
Bugtraq ID: 23144
Secunia Advisory ID: 24654
ISS X-Force ID: 33227
VUPEN Advisory: ADV-2007-1112
Mail List Post: http://archives.neohapsis.com/archives/fulldisclosure/2007-03/0369.html
Vendor URL: https://addons.mozilla.org/firefox/1307/
Keyword: RSS

Credit

CrYpTiC MauleR - crypticmauleryahoo.com -

CVSSv2 Score

CVSSv2 Base Score = 4.3
Source: nvd.nist.gov | Generated: 2007-03-27 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

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