Firefox before 1.0 and Mozilla before 1.7.5, when configured to use a proxy, respond to 407 proxy auth requests from arbitrary servers, which allows remote attackers to steal NTLM or SPNEGO credentials.

USN-149-1 fixed some vulnerabilities in the Ubuntu 5.04 (Hoary Hedgehog) version of Firefox. The version shipped with Ubuntu 4.10 (Warty Warthog) is also vulnerable to these flaws, so it needs to be upgraded as well. Please see

http://www.ubuntulinux.org/support/documentation/usn/usn-149-1

for the original advisory.

This update also fixes several older vulnerabilities; Some of them could be exploited to execute arbitrary code with full user privileges if the user visited a malicious website. (MFSA-2005-01 to MFSA-2005-44; please see the following website for details:
http://www.mozilla.org/projects/security/known-vulnerabilities.html)

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated mozilla packages that fix various bugs are now available.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

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

A buffer overflow bug was found in the way Mozilla processes GIF images. It is possible for an attacker to create a specially crafted GIF image, which when viewed by a victim will execute arbitrary code as the victim. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0399 to this issue.

A bug was found in the way Mozilla displays dialog windows. It is possible that a malicious web page which is being displayed in a background tab could present the user with a dialog window appearing to come from the active page. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1380 to this issue.

A bug was found in the way Mozilla allowed plug-ins to load privileged content into a frame. It is possible that a malicious webpage could trick a user into clicking in certain places to modify configuration settings or execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0232 to this issue.

A bug was found in the way Mozilla Mail handles cookies when loading content over HTTP regardless of the user's preference. It is possible that a particular user could be tracked through the use of malicious mail messages which load content over HTTP. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0149 to this issue.

A bug was found in the way Mozilla responds to proxy auth requests. It is possible for a malicious webserver to steal credentials from a victims browser by issuing a 407 proxy authentication request. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0147 to this issue.

A bug was found in the way Mozilla handles certain start tags followed by a NULL character. A malicious web page could cause Mozilla to crash when viewed by a victim. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-1613 to this issue.

A bug was found in the way Mozilla sets file permissions when installing XPI packages. It is possible for an XPI package to install some files world readable or writable, allowing a malicious local user to steal information or execute arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0906 to this issue.

A bug was found in the way Mozilla loads links in a new tab which are middle clicked. A malicious web page could read local files or modify privileged chrom settings. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0141 to this issue.

A bug was found in the way Mozilla displays the secure site icon. A malicious web page can use a view-source URL targetted at a secure page, while loading an insecure page, yet the secure site icon shows the previous secure state. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-0144 to this issue.

Users of Mozilla are advised to upgrade to this updated package which contains Mozilla version 1.4.4 and additional backported patches to correct these issues.

Versions of Mozilla Firefox prior to 1.7.5 are vulnerable to a heap overflow against its NNTP functionality. This may allow an attacker to execute arbitrary code on the remote host. To exploit this flaw, an attacker would need to set up a rogue website and lure a victim on the remote host into visiting it. 

The installed version of Firefox is earlier than 1.0.0.  Such versions have multiple vulnerabilities that could result in a denial of service, local file disclosure, or password disclosure.  These vulnerabilities are due to the fact that Firefox does handle the <IMG> tag correctly.

The remote host is using Firefox. The remote version of this software contains a security issue that may allow an attacker to determine existence of local files, cause a DoS and steal passwords (Windows only). The security vulnerability is due to the fact that Firefox does not handle correctly <IMG> tags. 

The remote host is using Mozilla.
The remote version of this software is vulnerable to a heap overflow against its NNTP functionality. This may allow an attacker to execute arbitrary code on the remote host. To exploit this flaw, an attacker would need to set up a rogue website and lure a victim on the remote host into visiting it.

ID	Name	Product	Family	Severity
20546	Ubuntu 4.10 : mozilla-firefox vulnerabilities (USN-149-3)	Nessus	Ubuntu Local Security Checks	high
17624	RHEL 2.1 / 3 : mozilla (RHSA-2005:323)	Nessus	Red Hat Local Security Checks	high
2481	Mozilla Firefox < 1.7.5 NNTP Remote Heap Overflow	Nessus Network Monitor	Web Clients	medium
15712	Firefox < 1.0.0 Multiple Vulnerabilities	Nessus	Windows	medium
2402	Mozilla Firefox < 1.0.0 IMG Tag Multiple Vulnerabilities (deprecated)	Nessus Network Monitor	Web Clients	medium
801363	Mozilla < 1.7.5 Network News Transport Protocol Remote Heap Overflow	Log Correlation Engine	Web Clients	high

Detections

Analytics

CVE-2005-0147

critical

Tenable Plugins

high

high

medium

medium

medium

high