Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and Thunderbird before 0.8 allows untrusted Javascript code to read and write to the clipboard, and possibly obtain sensitive information, via script-generated events such as Ctrl-Ins.

Several scripting vulnerabilities were discovered and corrected in Mozilla : CVE-2004-0905 JavaScript; links dragged onto another frame or page allows an attacker to steal or modify sensitive information from other sites. The user could be convinced to drag obscurred links in the context of a game or even a fake scrollbar. If the user could be convinced to drag two links in sequence into a separate window (not frame) the attacker would be able to run arbitrary programs.
CVE-2004-0908 Untrusted JavaScript code can read and write to the clipboard, stealing any sensitive data the user might have copied.
Workaround: disable JavaScript CVE-2004-0909 Signed scripts requesting enhanced abilities could construct the request in a way that led to a confusing grant dialog, possibly fooling the user into thinking the privilege requested was inconsequential while actually obtaining explicit permission to run and install software. Workaround: Never grant enhanced abilities of any kind to untrusted web pages.

A number of vulnerabilities were fixed in mozilla 1.7.3, the following of which have been backported to mozilla packages for Mandrakelinux 10.0 :

  - 'Send page' heap overrun

    - JavaScript clipboard access

    - buffer overflow when displaying VCard

    - BMP integer overflow

    - javascript: link dragging

    - Malicious POP3 server III

The details of all of these vulnerabilities are available from the Mozilla website.

Updated mozilla packages that fix a number of security issues are now available.

Mozilla is an open source Web browser, advanced email and newsgroup client, IRC chat client, and HTML editor.

Jesse Ruderman discovered a cross-domain scripting bug in Mozilla. If a user is tricked into dragging a JavaScript link into another frame or page, it becomes possible for an attacker to steal or modify sensitive information from that site. Additionally, if a user is tricked into dragging two links in sequence to another window (not frame), it is possible for the attacker to execute arbitrary commands.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0905 to this issue.

Gael Delalleau discovered an integer overflow which affects the BMP handling code inside Mozilla. An attacker could create a carefully crafted BMP file in such a way that it would cause Mozilla to crash or execute arbitrary code when the image is viewed. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0904 to this issue.

Georgi Guninski discovered a stack-based buffer overflow in the vCard display routines. An attacker could create a carefully crafted vCard file in such a way that it would cause Mozilla to crash or execute arbitrary code when viewed. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0903 to this issue.

Wladimir Palant discovered a flaw in the way JavaScript interacts with the clipboard. It is possible that an attacker could use malicious JavaScript code to steal sensitive data which has been copied into the clipboard. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0908 to this issue.

Georgi Guninski discovered a heap based buffer overflow in the 'Send Page' feature. It is possible that an attacker could construct a link in such a way that a user attempting to forward it could result in a crash or arbitrary code execution. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0902 to this issue.

Users of Mozilla should update to these updated packages, which contain backported patches and are not vulnerable to these issues.

The remote host is affected by the vulnerability described in GLSA-200409-26 (Mozilla, Firefox, Thunderbird, Epiphany: New releases fix vulnerabilities)

    Mozilla-based products are vulnerable to multiple security issues.
    Firstly, routines handling the display of BMP images and VCards contain     an integer overflow and a stack buffer overrun. Specific pages with     long links, when sent using the 'Send Page' function, and links with     non-ASCII hostnames could both cause heap buffer overruns.
    Several issues were found and fixed in JavaScript rights handling:
    untrusted script code could read and write to the clipboard, signed     scripts could build confusing grant privileges dialog boxes, and when     dragged onto trusted frames or windows, JavaScript links could access     information and rights of the target frame or window. Finally,     Mozilla-based mail clients (Mozilla and Mozilla Thunderbird) are     vulnerable to a heap overflow caused by invalid POP3 mail server     responses.
  Impact :

    An attacker might be able to run arbitrary code with the rights of the     user running the software by enticing the user to perform one of the     following actions: view a specially crafted BMP image or VCard, use the     'Send Page' function on a malicious page, follow links with malicious     hostnames, drag multiple JavaScript links in a row to another window,     or connect to an untrusted POP3 mail server. An attacker could also use     a malicious page with JavaScript to disclose clipboard contents or     abuse previously-given privileges to request XPI installation     privileges through a confusing dialog.
  Workaround :

    There is no known workaround covering all vulnerabilities.

Versions of Mozilla Firefox prior to 1.7.3 are prone to multiple vulnerabilities including overflows and cross-site scripting issues. An attacker may execute arbitrary code remotely, steal cookie-based authentication credentials or gather intelligence about the host. 

The remote host is using Mozilla and/or Firefox, a web browser.

The remote version of this software is vulnerable to several flaws that could allow an attacker to execute arbitrary code on the remote host, get access to content of the user clipboard or, perform a cross-domain cross-site scripting attack.

A remote attacker could exploit these issues by tricking a user into viewing a malicious web page.

ID	Name	Product	Family	Severity
19087	FreeBSD : mozilla -- scripting vulnerabilities (b2e6d1d6-1339-11d9-bc4a-000c41e2cdad)	Nessus	FreeBSD Local Security Checks	medium
15521	Mandrake Linux Security Advisory : mozilla (MDKSA-2004:107)	Nessus	Mandriva Local Security Checks	critical
15409	RHEL 2.1 / 3 : mozilla (RHSA-2004:486)	Nessus	Red Hat Local Security Checks	critical
14781	GLSA-200409-26 : Mozilla, Firefox, Thunderbird, Epiphany: New releases fix vulnerabilities	Nessus	Gentoo Local Security Checks	critical
2287	Mozilla Firefox < 1.7.3 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	low
14728	Mozilla Browsers Multiple Vulnerabilities	Nessus	Windows	high

Detections

Analytics

CVE-2004-0908

high

Tenable Plugins

medium

critical

critical

critical

low

high