Thunderbird 0.6 through 0.9 and Mozilla 1.7 through 1.7.3 does not obey the network.cookie.disableCookieForMailNews preference, which could allow remote attackers to bypass the user's intended privacy and security policy by using cookies in e-mail messages.

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2005:335 advisory.

    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 CAN-2005-0399 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. (CAN-2005-0147)

    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. (CAN-2004-1380)

    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. (CAN-2005-0149)

    A flaw was found in the way Mozilla displays international domain names. It     is possible for an attacker to display a valid URL, tricking the user into     thinking they are viewing a legitimate webpage when they are not.
    (CAN-2005-0233)

    A bug was found in the way Mozilla handles pop-up windows. It is possible     for a malicious website to control the content in an unrelated site's     pop-up window. (CAN-2004-1156)

    A bug was found in the way Mozilla saves temporary files. Temporary files     are saved with world readable permissions, which could allow a local     malicious user to view potentially sensitive data. (CAN-2005-0142)

    A bug was found in the way Mozilla handles synthetic middle click events.
    It is possible for a malicious web page to steal the contents of a victims     clipboard. (CAN-2005-0146)

    A bug was found in the way Mozilla processes XUL content.  If a malicious     web page can trick a user into dragging an object, it is possible to load     malicious XUL content. (CAN-2005-0401)

    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. (CAN-2005-0141)

    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. (CAN-2005-0144)

    A bug was found in the way Mozilla displays the secure site icon. A     malicious web page can display the secure site icon by loading a binary     file from a secured site. (CAN-2005-0143)

    A bug was found in the way Mozilla displays the download dialog window. A     malicious site can obfuscate the content displayed in the source field,     tricking a user into thinking they are downloading content from a trusted     source. (CAN-2005-0585)

    Users of Mozilla are advised to upgrade to this updated package which     contains Mozilla version 1.7.6 to correct these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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.

The remote Redhat Enterprise Linux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2005:094 advisory.

    Thunderbird is a standalone mail and newsgroup client.

    A bug was found in the way Thunderbird handled synthetic middle click events.
    It is possible for a malicious web page to steal the contents of a victim's     clipboard. The Common Vulnerabilities and Exposures project (cve.mitre.org)     has assigned the name CAN-2005-0146 to this issue.

    A bug was found in the way Thunderbird handled 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 CAN-2005-0149 to this issue.

    Users of Thunderbird are advised to upgrade to this updated package,     which contains Thunderbird version 1.0 and is not vulnerable to this issue.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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 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
17626	RHEL 4 : mozilla (RHSA-2005:335)	Nessus	Red Hat Local Security Checks	high
17624	RHEL 2.1 / 3 : mozilla (RHSA-2005:323)	Nessus	Red Hat Local Security Checks	high
17184	RHEL 4 : thunderbird (RHSA-2005:094)	Nessus	Red Hat Local Security Checks	high
2481	Mozilla Firefox < 1.7.5 NNTP Remote Heap Overflow	Nessus Network Monitor	Web Clients	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-2005-0149

high

Tenable Plugins

high

high

high

medium

medium

high