CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
Percentile
96.8%
Mozilla products fail to properly enforce security restrictions in JavaScript. This vulnerability may allow a remote, unauthenticated attacker to execute arbitrary code.
According to Mozilla Foundation Security Advisory 2006-28:
_The security check in js_ValueToFunctionObject() can be bypassed by clever use of setTimeout() and the new Firefox 1.5 array method ForEach. shutdown demonstrated how to leverage this into a privilege escalation vulnerability that would allow the installation of malware. _
Note that JavaScript must be enabled in order for this vulnerability to exist. JavaScript is enabled by default in the Firefox and Mozilla web browsers, but not in the Mozilla’s mail client or Thunderbird. Exploitation can occur by accessing a specially crafted web page with Firefox. If JavaScript is enabled within Mozilla’s mail client or Thunderbird, then this issue may be exploitable by opening a specially crafted email.
A remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system.
Upgrade
This issue is fixed in Firefox 1.5.0.2, Thunderbird 1.5.0.2, and SeaMonkey 1.0.1.
Disable JavaScript
For instructions on how to disable JavaScript in Firefox, please refer to the Firefox section of the Securing Your Web Browser document.
968814
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Updated: April 17, 2006
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to <http://www.mozilla.org/security/announce/2006/mfsa2006-28.html>.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23968814 Feedback>).
Updated: May 17, 2006
Not Affected
This issue only affected version 1.5 of Firefox and Thunderbird. Red Hat Enterprise Linux 4 shipped with Firefox and Thunderbird versions prior to 1.5 and are not vulnerable to this issue. Other releases of Red Hat Enterprise Linux did not ship with Firefox or Thunderbird and were therefore not vulnerable to this issue.
The vendor has not provided us with any further information regarding this vulnerability.
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<http://www.mozilla.org/security/announce/2006/mfsa2006-28.html>
This vulnerability was reported in Mozilla Foundation Security Advisory 2006-28.
This document was written by Jeff Gennari.
CVE IDs: | CVE-2006-1726 |
---|---|
Severity Metric: | 20.45 Date Public: |