CIS CYBERSECURITY ADVISORIES

MS-ISAC ADVISORY NUMBER:
2015-055

DATE(S) ISSUED:
05/12/2015

SUBJECT:
Multiple Vulnerabilities in Microsoft Windows Journal Could Allow Remote Code Execution (MS15-045)

OVERVIEW:

Multiple vulnerabilities have been discovered in Microsoft Windows Journal that could allow remote code execution. These vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Journal (.jnl) file. Successful exploitation of these vulnerabilities could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

THREAT INTELLIGENCE

There are no reports of this vulnerability being exploited in the wild.

SYSTEM AFFECTED:

  • Windows Vista
  • Windows 7
  • Windows 8 and Windows 8.1
  • Windows RT and Windows RT 8.1
  • Windows Server 2008
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2012 R2

RISK:

Government:

  • Large and medium government entities: High
  • Small government entities: High

Businesses:

  • Large and medium business entities: High
  • Small business entities: High

Home users: High

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Microsoft Windows Journal which could allow for remote code execution when handling specially crafted Journal files. This update addresses six remote code execution vulnerabilities including:

  • Windows Journal Remote Code Execution Vulnerability (CVE-2015-1675)
  • Windows Journal Remote Code Execution Vulnerability (CVE-2015-1695)
  • Windows Journal Remote Code Execution Vulnerability (CVE-2015-1696)
  • Windows Journal Remote Code Execution Vulnerability (CVE-2015-1697)
  • Windows Journal Remote Code Execution Vulnerability (CVE-2015-1698)
  • Windows Journal Remote Code Execution Vulnerability (CVE-2015-1699)

Successful exploitation of these vulnerabilities could result in the attacker gaining the same rights as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply appropriate patches provided by Microsoft 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 visit un-trusted websites or follow links provided by unknown or un-trusted sources.
  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.

REFERENCES:

Microsoft:

https://technet.microsoft.com/library/security/MS15-045

CVE:

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1675

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1695

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1696

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1697

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1698

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1699