Register now for SANS Cyber Defense Initiative 2016 and save $400.

Newsletters: @RISK

@RISK provides a reliable weekly summary of (1) newly discovered attack vectors, (2) vulnerabilities with active new exploits, (3) insightful explanations of how recent attacks worked, and other valuable data

A key purpose of the @RISK is to provide the data that will ensure that the 20 Critical Controls (the US and UK benchmark for effective protection of networked systems) continue to be the most effective defenses for all known attack vectors. But since it is also valuable for security practitioners, SANS is making it available to the 145,000 security practitioners who have completed SANS security training and others at their organizations who hope to stay current with the offensive methods in use.

May 28, 2015
=============================================================

@RISK: The Consensus Security Vulnerability Alert

Vol. 15, Num. 21

Providing a reliable, weekly summary of newly discovered attack vectors, vulnerabilities with active exploits, and explanations of how recent attacks worked.

Archived issues may be found at http://www.sans.org/newsletters/risk/

=============================================================

CONTENTS:

NOTABLE RECENT SECURITY ISSUES
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES 2015-05-19 - 2015-05-26
============================================================

TOP VULNERABILITY THIS WEEK: CVE-2015-4000 - Protocol Flaw Could Allow A Man-in-the-Middle Attacker To Downgrade TLS Connections During Diffle-Hellman Key Exchange (a.k.a. Logjam)

******************** Sponsored By SANS *********************

In conjunction with the ICS - Houston training event, SANS is pleased to offer the 3rd Annual Industrial Control Systems Security Briefing. This event provides the opportunity to engage in dialog around Industrial Controls Systems Security and learn about key solution capabilities.This event is free to Oil & Gas constituents as well as ICS

- -Houston training event students. June 2, 2015.
http://www.sans.org/info/178010
Not in the Houston area? This event will be available via Simulcast as well:
http://www.sans.org/info/178015

============================================================

TRAINING UPDATE

- --ICS Security Training Houston | Houston, TX | June 1-5, 2015
5 courses.
http://www.sans.org/u/3gM

- - --SANSFIRE 2015 | Baltimore, MD | June 13-20, 2015 |
41 courses plus 18 bonus evening sessions lead by Internet Storm Center (ISC) handlers, including The State of the Takedown: Disrupting Online Cybercrime; Continuous Monitoring and Real-World Analysis; Unconventional Linux Incident Response; and "Network Security as Counterinsurgency" Replacing the Art of War with FM 3-24.
http://www.sans.org/u/3hq

- - --SANS Rocky Mountain 2015 | Denver, CO | June 22-27, 2015 |
http://www.sans.org/event/rocky-mountain-2015
NewsBites: http://www.sans.org/u/3h1
@Risk: http://www.sans.org/u/3h6

- --SANS Pen Test Berlin 2015 | Berlin, Germany | June 22-27, 2015 |
6 courses.
http://www.sans.org/u/3gR

- --Cyber Defense Canberra 2015 | Canberra, Australia | June 29-July 11, 2015 |
8 courses.
http://www.sans.org/u/3hb

- - --Can't travel? SANS offers LIVE online instruction. Day and Evening courses available!

- -- Multi-week Live SANS training
http://www.sans.org/u/X9
Contact mentor@sans.org

- -- Looking for training in your own community?
http://www.sans.org/u/Xo

- --Save on On-Demand training (30 full courses) - See samples at
http://www.sans.org/u/XD

Plus Dublin, Minneapolis, Delhi, and Milan all in the next 90 days.

For a list of all upcoming events, on-line and live: http://www.sans.org/u/XD

For a list of all upcoming events, on-line and live:
http://www.sans.org/u/XN

********************** Sponsored Links: ********************

1) Big Data: Identifying Major Threats and Removing Security and Compliance Barriers
Thursday, June 18 at 1:00 PM EDT (17:00:00 UTC) with Barbara Filkins, Sam Heywood, and John Pescatore (moderator).
http://www.sans.org/info/178020

2) What are the biggest challenges to data center and cloud security?
Take Survey - Enter to Win a $400 Amazon Gift Card!
http://www.sans.org/info/178025

3) The survey results are in! Big Data: Identifying Major Threats and Removing Security and Compliance Barriers -- Webcast & Free Whitepaper on Thursday, June 18 at 1:00 PM EDT.
http://www.sans.org/info/178030

============================================================
NOTABLE RECENT SECURITY ISSUES
SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP VULNERABILITY RESEARCH TEAM

Title: CVE-2015-4000 - Protocol Flaw Could Allow A Man-in-the-Middle Attacker To Downgrade TLS Connections During Diffle-Hellman Key Exchange (a.k.a. Logjam)
Description: A flaw in how the TLS Protocol handles a Diffie-Hellman key exchange could allow a man-in-the-middle attacker to execute a downgrade attack to DHE_EXPORT ciphers, which are weaker. As a result, the attacker could possibly eavesdropped on client-server communications. Servers that support DHE_EXPORT ciphers are primarily at risk and administrators who are concerned should disable support for export grade cipher suites.
Reference: https://weakdh.org/
Snort SID: 33777-33806

Title: CVE-2015-2851 - Synology Cloud Station Sync Client for Mac OS X Could Allow Users to Change Ownership of System Files
Description: Researchers have found that the Synology Cloud Station Client for Mac OS X comes with an executable that allows users to change ownership of files, but is installed as a setuid root executable. This could allow a user to change ownership of system files and compromise the host. Synology has released updates for the client that remove the executable in order to prevent abuse and address the issue.
Reference: https://www.kb.cert.org/vuls/id/551972

============================================================
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

IRS hit by data breach, tax info on 100,000 stolen
http://www.zdnet.com/article/irs-suffers-data-breach-tax-info-on-100000-stolen/

Security Monitoring with Attack Behavior Based Signatures
http://journeyintoir.blogspot.com/2015/05/security-monitoring-with-attack.html

Exploring CVE-2015-1701 - A Win32k Elevation of Privilege Vulnerability Used in Targeted Attacks
http://blog.trendmicro.com/trendlabs-security-intelligence/exploring-cve-2015-1701-a-win32k-elevation-of-privilege-vulnerability-used-in-targeted-attacks/

Exploit Kit Leveraging Cross Site Request Forgery to Modify SOHO Router DNS Configurations
http://malware.dontneedcoffee.com/2015/05/an-exploit-kit-dedicated-to-csrf.html

============================================================
RECENT VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
COMPILED BY THE QUALYS VULNERABILITY RESEARCH TEAM.

This is a list of recent vulnerabilities for which exploits are available. System administrators can use this list to help in prioritization of their remediation activities. The Qualys Vulnerability Research Team compiles this information based on various exploit frameworks, exploit databases, exploit kits and monitoring of internet activity.

ID: CVE-2015-3306
Title: ProFTPd 1.3.5 Remote Command Execution
Vendor: proftpd.org
Description: The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2015-1701
Title: Microsoft Windows Privilege Escalation Vulnerability
Vendor: Microsoft
Description: Unspecified vulnerability in Microsoft Windows before 8 allows local users to gain privileges via unknown vectors, as exploited in the wild in April 2015.
CVSS v2 Base Score: 7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2015-3043
Title: Adobe Flash Player Memory Corruption Code Execution Vulnerability
Vendor: Adobe
Description: Adobe Flash Player before 13.0.0.281 and 14.x through 17.x before 17.0.0.169 on Windows and OS X and before 11.2.202.457 on Linux allows attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, as exploited in the wild in April 2015, a different vulnerability than CVE-2015-0347,
CVE-2015-0350, CVE-2015-0352, CVE-2015-0353, CVE-2015-0354,
CVE-2015-0355, CVE-2015-0360, CVE-2015-3038, CVE-2015-3041, and
CVE-2015-3042.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2014-0556
Title: Adobe Flash Player copyPixelsToByteArray Buffer Overflow
Vendor: Adobe
Description: Heap-based buffer overflow in Adobe Flash Player before 13.0.0.244 and 14.x and 15.x before 15.0.0.152 on Windows and OS X and before 11.2.202.406 on Linux, Adobe AIR before 15.0.0.249 on Windows and OS X and before 15.0.0.252 on Android, Adobe AIR SDK before 15.0.0.249, and Adobe AIR SDK & Compiler before 15.0.0.249 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2014-0559.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2015-0313
Title: Adobe Flash Player Use-After-Free Vulnerability
Vendor: Adobe
Description: Use-after-free vulnerability in Adobe Flash Player before 13.0.0.269 and 14.x through 16.x before 16.0.0.305 on Windows and OS X and before 11.2.202.442 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in February 2015, a different vulnerability than CVE-2015-0315, CVE-2015-0320, and CVE-2015-0322.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2014-4114
Title: Exim GHOST (glibc gethostbyname) Buffer Overflow
Vendor: Exim.org
Description: Heap-based buffer overflow in the
__nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-dependent attackers to execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function, aka "GHOST."
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

=========================================================
MOST PREVALENT MALWARE FILES 2015-05-19 - 2015-05-26:
COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: 55F173FB7CE33654D379663215DE48BD2F13CA4A607CBE4D90962DE33A4972E6
MD5: 1caf9472c70fb3567b85e1977a393720
VirusTotal:
https://www.virustotal.com/file/55F173FB7CE33654D379663215DE48BD2F13CA4A607CBE4D90962DE33A4972E6/analysis/#additional-info
Typical Filename: Runner.exe
Claimed Product: Search Protect
Detection Name: W32.SearchProtect:GenMaliciousAIBH.18f2.1201

SHA 256: B4F697039563BF0A6DF19E33A62C601B275FA869E5D80F610E8D74722B839554
MD5: c4dd3d60af182429d1262f5992e2dce1
VirusTotal:
https://www.virustotal.com/file/B4F697039563BF0A6DF19E33A62C601B275FA869E5D80F610E8D74722B839554/analysis/#additional-info
Typical Filename: newVrsn.exe
Claimed Product: Keep-My-Search LTD
Detection Name: W32.Variant:Gen.18fe.1201

SHA 256: EE3D776A5DA74C00FAD15A1B50E42C091CEC6A9A89C13428F9277C6007D4007F
MD5: a3730e445244791b37af42763603d87f
VirusTotal:
https://www.virustotal.com/file/EE3D776A5DA74C00FAD15A1B50E42C091CEC6A9A89C13428F9277C6007D4007F/analysis/#additional-info
Typical Filename: iKernel.dll
Claimed Product: InstallShield
Detection Name: W32.EE3D776A5D-100.SBX.VIOC

SHA 256: 78A9588D7EAF6917A67E86046DCE1614A182990A3D2FC65991CB42FC56A18EC2
MD5: 55504695641a1b11d923a29cd320c5f4
VirusTotal:
https://www.virustotal.com/file/78A9588D7EAF6917A67E86046DCE1614A182990A3D2FC65991CB42FC56A18EC2/analysis/#additional-info
Typical Filename: PM8963.doc
Detection Name: W32.78A9588D7E-99.SBX.VIOC

SHA 256: 7314C47AA633946386D6D3CD7AC292974B5D457E14B053FA0EBC218D555C34F4
MD5: 9f6c52eec607111136cd222b02bf0530
VirusTotal:
https://www.virustotal.com/file/7314C47AA633946386D6D3CD7AC292974B5D457E14B053FA0EBC218D555C34F4/analysis/#additional-info
Typical Filename: DoiSScountExtensi.exe
Detection Name: W32.Variant:VOPackage.18gr.1201

=============================================================

(c) 2015. All rights reserved. The information contained in this newsletter, including any external links, is provided "AS IS," with no express or implied warranty, for informational purposes only.

Please feel free to share this with interested parties via email, but no posting is allowed on web sites. For a free subscription, (and for free posters) or to update a current subscription, visit https://www.sans.org/account

SANS Institute, 8120 Woodmont Ave., Suite 310, Bethesda, MD 20814-2743