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Last updated: 5/25/2016 3:19:19 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-3670

Original release date: 07/10/2007
Last revised: 08/22/2013


Argument injection vulnerability in Microsoft Internet Explorer, when running on systems with Firefox installed and certain URIs registered, allows remote attackers to conduct cross-browser scripting attacks and execute arbitrary commands via shell metacharacters in a (1) FirefoxURL or (2) FirefoxHTML URI, which are inserted into the command line that is created when invoking firefox.exe. NOTE: it has been debated as to whether the issue is in Internet Explorer or Firefox. As of 20070711, it is CVE's opinion that IE appears to be failing to properly delimit the URL argument when invoking Firefox, and this issue could arise with other protocol handlers in IE as well. However, Mozilla has stated that it will address the issue with a "defense in depth" fix that will "prevent IE from sending Firefox malicious data."


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 MEDIUM
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification
Successful exploit requires that Mozilla Firefox is installed.

References to Advisories, Solutions, and Tools

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External Source: MANDRIVA
Name: MDKSA-2007:152
External Source: MISC
Name: http://www.theregister.co.uk/2007/07/11/ie_firefox_vuln/
External Source: MISC
Name: http://www.virusbtn.com/news/virus_news/2007/07_11.xml
External Source: VUPEN
Name: ADV-2008-0082
External Source: VUPEN
Name: ADV-2007-2473
External Source: BID
Name: 24837
External Source: MISC
Name: http://msinfluentials.com/blogs/jesper/archive/2007/07/10/blocking-the-firefox-gt-ie-0-day.aspx
External Source: XF
Name: ie-firefoxurl-command-execution(35346)
External Source: VUPEN
Name: ADV-2007-2565
External Source: SUSE
Name: SUSE-SA:2007:049
External Source: MISC
Name: http://larholm.com/2007/07/10/internet-explorer-0day-exploit/
External Source: HP
Name: SSRT061236
US-CERT Vulnerability Note: CERT-VN
Name: VU#358017
External Source: CONFIRM
Name: http://www.mozilla.org/security/announce/2007/mfsa2007-40.html
External Source: UBUNTU
Name: USN-503-1
External Source: SECTRACK
Name: 1018351
US-CERT Vulnerability Note: CERT
Name: TA07-199A
External Source: MISC
Name: http://blog.mozilla.com/security/2007/07/10/security-issue-in-url-protocol-handling-on-windows/
External Source: IDEFENSE
Name: 20070719 Multiple Vendor Multiple Product URI Handler Input Validation Vulnerability
External Source: HP
Name: SSRT061181
External Source: BUGTRAQ
Name: 20070710 Internet Explorer 0day exploit
External Source: FULLDISC
Name: 20070710 Internet Explorer 0day exploit
External Source: MISC
Name: http://www.xs-sniper.com/sniperscope/IE-Pwns-Firefox.html
External Source: VUPEN
Name: ADV-2007-4272
External Source: SECTRACK
Name: 1018360
External Source: CONFIRM
Name: ftp://ftp.slackware.com/pub/slackware/slackware-12.0/ChangeLog.txt
External Source: CONFIRM
Name: http://www.mozilla.org/security/announce/2007/mfsa2007-23.html
External Source: CONFIRM
Name: http://support.novell.com/techcenter/psdb/07d098f99c9fe6956523beae37f32fda.html
External Source: OSVDB
Name: 38017

Technical Details

Vulnerability Type (View All)
  • Cross-Site Scripting (XSS) (CWE-79)