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Vulnerability Alert

Mozilla Addressbar Select Statement Spoofing Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:31535
Version:2
First Published:2013 October 30 16:45 GMT
Last Published:2013 November 01 15:29 GMT
Port: Not available
CVE:CVE-2013-5593
BugTraq ID:63429
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Harassment
CVSS Base:4.3 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:3.2
 
Version Summary:FreeBSD has released a VuXML document and updated ports collection to address the Mozilla addressbar select statement spoofing vulnerability.
 
 
Description
A vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey could allow an unauthenticated, remote attacker to conduct spoofing attacks.

The vulnerability is due to insufficient sanitization of user-supplied input by the affected software. An unauthenticated, remote attacker could exploit this vulnerability by persuading a user to navigate away from a web page with an active select drop-down menu. If successful, an attacker could position a new web page in a manner that retains the contents of the previous web page, which could be used to conduct spoofing attacks on a targeted system.

Mozilla has confirmed the vulnerability and released software updates.
 
Warning Indicators
The following Mozilla products are vulnerable:
  • Firefox versions prior to 25
  • Firefox ESR versions prior to 24.1
  • Thunderbird versions prior to 24.1
  • SeaMonkey versions prior to 2.22
 
IntelliShield Analysis
This vulnerability cannot be exploited through email in Thunderbird and SeaMonkey because the products have scripting disabled; however, the vulnerability could be exploited in the browser-like context of the products.
 
Vendor Announcements
Mozilla has released a security advisory at the following link: MFSA-2013-94

FreeBSD has released a VuXML document at the following link: mozilla -- multiple vulnerabilities
 
Impact
An unauthenticated, remote attacker could launch spoofing attacks to direct a user to a malicious web page or present a fraudulent data entry page to the user.
 
Technical Information
The vulnerability is due to improper handling of select elements in the affected software when it processes user-supplied input. The select drop-down menu component of the affected software fails to remove arbitrary HTML content from a web page when rendered, allowing a new page to retain the content.

An unauthenticated, remote attacker could exploit this vulnerability by convincing a user to navigate away from a web page. If successful, an attacker could position a new web page in a manner that retains the contents of the previous web page, which could be used to conduct spoofing attacks on the targeted system.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Users are advised not to open email messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in email messages are safe, they are advised not to open them.

Administrators are advised to monitor affected systems.
 
Patches/Software
Mozilla has released updated software at the following links:

Firefox 25.0
Firefox ESR 24.1
Thunderbird 24.1
SeaMonkey 2.22

FreeBSD releases ports collection updates at the following link: Ports Collection Index
 
Alert History
 

Version 1, October 30, 2013, 4:45 PM: Mozilla Firefox, Thunderbird, and SeaMonkey contain a vulnerability that could allow an unauthenticated, remote attacker to conduct spoofing attacks. Updates are available.



Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Mozilla FoundationFirefox 19.0 Base, .1, .2 | 20.0 Base | 21.0 Base | 22.0 Base | 23.0 Base | 24.0 Base
Mozilla FoundationFirefox ESR 10.0 .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11 | 17.0 Base, .1, .2, .3, .4, .5, .6, .7, .8, .9 | 24.0 Base
Mozilla FoundationSeaMonkey 2.0 .0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14 | 2.1 Base | 2.2 Base | 2.3 Base, .1, .2, .3 | 2.4 Base, .1 | 2.5 Base | 2.6 .1 | 2.7 Base, .1 | 2.8 Base | 2.9 Base, .1 | 2.10 Base | 2.11 Base | 2.12 Base | 2.13 Base, .1 | 2.14 Base, 0.1 | 2.15 Base | 2.16 Base, .1 | 2.17 Base | 2.18 Base | 2.19 Base | 2.20 Base | 2.21 Base
Mozilla FoundationThunderbird 19.0 Base | 20.0 Base | 21.0 Base | 22.0 Base | 23.0 Base | 24.0 Base

Associated Products:
FreeBSD ProjectFreeBSD 6.3 Base | 6.4 Base | 7.0 Base | 7.1 Base | 7.2 Base | 7.3 Base | 7.4 Base | 8.0 Base | 8.1 Base | 8.2 Base | 8.3 Base | 9.0 Base | 9.1 Base | 9.2 Base




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