Multiple Vulnerabilities in Mozilla Firefox and Thunderbird Could Allow for Remote Code Execution

ITS Advisory Number: 
2015-017
Date(s) Issued: 
Wednesday, February 25, 2015
Subject: 
Multiple Vulnerabilities in Mozilla Firefox and Thunderbird Could Allow for Remote Code Execution
Overview: 

Multiple vulnerabilities have been identified in Mozilla Firefox and Thunderbird which could allow for remote code execution. Mozilla Firefox is a web browser used to access the Internet and Mozilla Thunderbird is an email client. Successful exploitation of these vulnerabilities could result in an attacker gaining the same privileges as the logged on user, or gaining session authentication credentials. Depending on the privileges associated with the user, an attacker could install programs; view, change, or delete data; or create new accounts with full user rights.

Systems Affected: 
  • Mozilla Firefox versions prior to 36
  • Firefox versions prior ESR 31.5
  • Thunderbird versions prior 31.5
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
High
BUSINESS
Large and medium business entities: 
High
Small business entities: 
High
Home Users: 
High
Description: 

18 vulnerabilities have been reported in Mozilla Firefox and Thunderbird. Details of the vulnerabilities are as follows:

  • Mozilla Firefox is prone to a denial-of-service vulnerability. (CVE-2015-0830, CVE-2015-0824, CVE-2015-0826, CVE-2015-0831, CVE-2015-0823).
  • Mozilla Firefox is prone to a disclosure of credentials through a Man-in-the-middle (MITM) attack (CVE-2015-0834).
  • Mozilla Firefox is prone to a security bypass vulnerability (CVE-2015-0832, CVE-2015-0820).
  • Mozilla Firefox and Thunderbird are prone to a security vulnerability because 'UITour: onPageEvent' fails to ignore API calls from background tabs. (CVE-2015-0819).
  • Mozilla Firefox and Thunderbird are prone to an arbitrary file read vulnerability allowing a user to upload a readable file to a malicious site. (CVE-2015-0822).
  • Mozilla Firefox and Thunderbird are prone to an unspecified memory-corruption vulnerability which may allow an attacker to execute arbitrary code. (CVE-2015-0836, CVE-2015-0835).
  • Mozilla Firefox, Thunderbird, and Firefox ESR are prone to a vulnerability which may allow an attacker to execute arbitrary code. (CVE-2015-0833, CVE-2015-0828, CVE-2015-0829, CVE-2015-0825, CVE-2015-0827).
  • Mozilla Firefox is prone to Local files or privileged URLs in pages being opened in new tabs. (CVE-2015-0821).
Actions: 

We recommend the following actions be taken:

  • Apply appropriate patches provided by Mozilla to vulnerable systems immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to click links from unknown sources, or to click links without verifying the intended destination.
References: 

Mozilla:
https://www.mozilla.org/en-US/security/advisories/mfsa2015-11/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-12/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-13/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-14/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-15/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-16/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-17/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-18/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-19/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-20/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-21/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-22/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-23/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-24/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-25/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-26/
https://www.mozilla.org/en-US/security/advisories/mfsa2015-27/

CVE: 
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0819
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0820
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0821
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0822
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0823
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0824
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0825
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0826
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0827
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0828
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0829
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0830
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0831
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0832
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0833
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0834
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0835
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0836

SecurityFocus: 
http://www.securityfocus.com/bid/72741
http://www.securityfocus.com/bid/72742
http://www.securityfocus.com/bid/72742

http://www.securityfocus.com/bid/72743
http://www.securityfocus.com/bid/72746
http://www.securityfocus.com/bid/72747
http://www.securityfocus.com/bid/72748
http://www.securityfocus.com/bid/72749
http://www.securityfocus.com/bid/72750
http://www.securityfocus.com/bid/72752
http://www.securityfocus.com/bid/72753
http://www.securityfocus.com/bid/72754
http://www.securityfocus.com/bid/72756
http://www.securityfocus.com/bid/72757
http://www.securityfocus.com/bid/72758
http://www.securityfocus.com/bid/72759