Mozilla Firefox Download Dialogue Box File Name Spoofing Vulnerability

BID:11643

Info

Mozilla Firefox Download Dialogue Box File Name Spoofing Vulnerability

Bugtraq ID: 11643
Class: Design Error
CVE:
Remote: Yes
Local: No
Published: Nov 10 2004 12:00AM
Updated: Nov 10 2004 12:00AM
Credit: Gabriel Cabillón <[email protected]> is credited with the discovery of this issue.
Vulnerable: Mozilla Firefox 0.10.1
Mozilla Firefox 0.10
Mozilla Firefox 0.9.3
Mozilla Firefox 0.9.2
Mozilla Firefox 0.9.1
Mozilla Firefox 0.9
Mozilla Firefox 0.8
Not Vulnerable: Mozilla Firefox 1.0
+ Gentoo Linux
+ Gentoo Linux
+ S.u.S.E. Linux Personal 9.2 x86_64
+ S.u.S.E. Linux Personal 9.2 x86_64
+ S.u.S.E. Linux Personal 9.2
+ S.u.S.E. Linux Personal 9.2
+ S.u.S.E. Linux Personal 9.1 x86_64
+ S.u.S.E. Linux Personal 9.1 x86_64
+ S.u.S.E. Linux Personal 9.1
+ S.u.S.E. Linux Personal 9.1
+ S.u.S.E. Linux Personal 9.0 x86_64
+ S.u.S.E. Linux Personal 9.0 x86_64
+ S.u.S.E. Linux Personal 9.0
+ S.u.S.E. Linux Personal 9.0
+ Slackware Linux 10.1
+ Slackware Linux 10.0
+ Slackware Linux 10.0
+ Slackware Linux 9.1
+ Slackware Linux 9.1
+ Slackware Linux -current
+ Slackware Linux -current

Discussion

Mozilla Firefox Download Dialogue Box File Name Spoofing Vulnerability

A download dialogue box file name spoofing vulnerability affects Mozilla Firefox. This issue is due to a design error that facilitates the spoofing of file names.

An attacker may leverage this issue to spoof downloaded file names to unsuspecting users. This issue may lead to a compromise of the target computer as well as other consequences.

NOTE: This issue has been fixed by reducing the number of space characters displayed in the dialogue box. It should be noted that this issue may still be triggered by using other characters to fill the space such as non-displayable characters and even extremely long file names. Users should be cautious about downloading files with the affected application.

Exploit / POC

Mozilla Firefox Download Dialogue Box File Name Spoofing Vulnerability

No exploit is required to leverage this issue.

Solution / Fix

Mozilla Firefox Download Dialogue Box File Name Spoofing Vulnerability

Solution:
The vendor has released a patch dealing with this issue.

Gentoo has released an advisory GLSA 200501-03 to address various issues in multiple browsers offered by Mozilla. Gentoo users may carry out the following commands to update their computers:

Mozilla users:

emerge --sync
emerge --ask --oneshot --verbose ">=net-www/mozilla-1.7.5"

Mozilla binary users:

emerge --sync
emerge --ask --oneshot --verbose ">=net-www/mozilla-bin-1.7.5"

Firefox users:

emerge --sync
emerge --ask --oneshot --verbose ">=net-www/mozilla-firefox-1.0"

Firefox binary users:

emerge --sync
emerge --ask --oneshot --verbose ">=net-www/mozilla-firefox-bin-1.0"

Thunderbird users:

# emerge --sync
# emerge --ask --oneshot ?verbose ">=mail-client/mozilla-thunderbird-0.9"

Thunderbird:

# emerge --sync
# emerge --ask --oneshot ?verbose ">=mail-client/mozilla-thunderbird-bin-0.9"

Please see the referenced advisory for more information.


Mozilla Firefox 0.10

Mozilla Firefox 0.10.1

Mozilla Firefox 0.8

Mozilla Firefox 0.9

Mozilla Firefox 0.9.1

Mozilla Firefox 0.9.2

Mozilla Firefox 0.9.3

References

Mozilla Firefox Download Dialogue Box File Name Spoofing Vulnerability

References:

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report