@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.
February 2, 2017=============================================================
@RISK: The Consensus Security Vulnerability Alert
Vol. 17, Num. 05
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/at-risk =============================================================
CONTENTS:
NOTABLE RECENT SECURITY ISSUES
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES 2017-01-24 - 2017-01-31
============================================================TOP VULNERABILITY THIS WEEK: WordPress Releases Security Update
******************** Sponsored By Splunk ********************It's no longer a question whether an organization will be breached - it's now a matter of when. Join this webinar to hear Splunk and Gartner discuss the strategic role of SIEM as a centralized solution and why organizations need to move from prevention only solutions to detection, response and remediation. http://www.sans.org/info/191817
============================================================ TRAINING UPDATE--SANS Munich Winter 2017 | February 13-18, 2017 | Munich, Germany | The Munich Marriott on Berliner Strasse hosts five SANS courses, all with an associated GIAC certification. Additional SANS@Night talks and social functions ensure attendees receive an enhanced learning experience. http://www.sans.org/u/nF8
--SANS Secure Japan 2017 | February 13-25, 2017 | Tokyo, Japan | http://www.sans.org/u/lJi
--SANS London March 2017 | London, GB | March 13-18 | 10 SANS courses in the heart of London's West End. Prepare for GIAC certification, take part in NetWars and enjoy free networking and social functions. http://www.sans.org/u/oIW
--SANS Secure Singapore 2017 | March 13-25, 2017 | Singapore, Singapore | http://www.sans.org/u/mFV
--SANS ICS Security Summit & Training | Orlando, FL | March 20-27, 2017 | Two days of in-depth Summit talks, hands-on challenges, live demos, and networking followed by seven world-class information security courses. http://www.sans.org/u/osa
--SANS Pen Test Austin 2017 | March 27-April 1 | 9 courses | 3 nights of the popular InfoSec Challenge: SANS NetWars Experience | 1 night of exciting CyberCity missions | Earn up to 5 of the SANS Pen Test Challenge Coins at Coin-A-Palooza. http://www.sans.org/u/orG
-- SANS 2017 | Orlando, FL | April 7-14| http://www.sans.org/u/oWz
-- Can't travel? SANS offers LIVE online instruction. Day (Simulcast - http://www.sans.org/u/WK) and Evening (vLive - http://www.sans.org/u/WZ) courses available!
-- Special Offer! Choose an iPad Mini 2, Samsung Galaxy Tab A or take $250 off all OnDemand and vLive courses when you register by February 15!
-- OnDemand http://www.sans.org/u/po4
-- vLive http://www.sans.org/u/ppB
-- Multi-week Live SANS training Mentor - http://www.sans.org/u/X9 Contact mentor@sans.org
-- Looking for training in your own community? Community - http://www.sans.org/u/Xo
-- SANS OnDemand lets you train anytime, anywhere with four months of online access to your course. Learn more: http://www.sans.org/u/XD
Plus Brussels, San Francisco, Arlington, and Dubai all in the next 90 days.
For a list of all upcoming events, on-line and live: http://www.sans.org/u/XN
********************** Sponsored Links: ********************1) Email spoofing attacks increase; SANS reviews Mimecast service designed to stop sophisticated phishing efforts. View the archive: http://www.sans.org/info/191822
2) Many organizations have recognized the need for a comprehensive incident management platform. Register to learn more: http://www.sans.org/info/191827
3) An organization discovered commodity malware in their environment that transformed into a targeted attack. Register to learn more: http://www.sans.org/info/191832
============================================================NOTABLE RECENT SECURITY ISSUES
SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: WordPress Releases Security Update Description: WordPress has released a security update for its blogging platform bringing the latest version up to 4.7.2. This latest update addresses three security issues with one being a SQL injection vulnerability, another being a cross-site scripting vulnerability, and the last one being a permissions enforcement error. WordPress versions 4.7.1 and earlier are affected by these three vulnerabilities. Reference: https://wordpress.org/news/2017/01/wordpress-4-7-2-security-release/ Snort SID: Detection pending release of vulnerability information
Title: Cisco Releases Security Update for WebEx Browser Extension Description: Cisco has released a security update for CVE-2017-3823, an arbitrary code execution flaw in the WebEx Browser Extension for Chrome, Firefox, and Internet Explorer. This flaw was previously identified by Tavis Ormandy of Google's Project Zero and patched, but found incomplete. Cisco has released an updated version of the extension for all three browsers. Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170124-webex Snort SID: 41407-41409
Title: NETGEAR Releases Security Advisory for a Password Recovery and Exposure Vulnerability Description: NETGEAR has released a security advisory for CVE-2017-5521, a password recovery and exposure vulnerability found in various NETGEAR home and small office routers. CVE-2017-5521 manifests as a flaw in how the firmware handles login passwords when the password recovery feature is disabled and can exploited via access on the internal network, or if remote management is enabled. NETGEAR has released software updates for various affected models. Reference: - http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability - https://www.trustwave.com/Resources/SpiderLabs-Blog/CVE-2017-5521--Bypassing-Authentication-on-NETGEAR-Routers/ Snort SID: Detection pending release of vulnerability information
============================================================INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
Averting ransomware epidemics in corporate networks with Windows Defender ATP https://blogs.technet.microsoft.com/mmpc/2017/01/30/averting-ransomware-epidemics-in-corporate-networks-with-windows-defender-atp/
Team Shellphish - Cyber Grand Shellphish http://phrack.org/papers/cyber_grand_shellphish.html
Gmail will block .js file attachments starting February 13, 2017 https://gsuiteupdates.googleblog.com/2017/01/gmail-will-restrict-js-file-attachments.html
Dridex Banking Trojan Returns, Leverages New UAC Bypass Method https://www.flashpoint-intel.com/blog-dridex-banking-trojan-returns/
EyePyramid: An Archaeological Journey http://blog.talosintel.com/2017/01/Eye-Pyramid.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-2017-3823 Title: Cisco WebEx Google Chrome Extension Remote Code Execution Vulnerability Vendor: Cisco Description: A remote exploitation of an input validation error vulnerability in Cisco WebEx browser extensions could allow an unauthenticated attacker to execute arbitrary code with the privileges of the affected browser on an affected system. An input validation error vulnerability has been identified in the WebEx Extension for Chrome. CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)
ID: CVE-2016-7200 Title: Microsoft Edge Scripting Engine Memory Corruption Code Execution Vulnerability Vendor: Microsoft Description: The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7201, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243. CVSS v2 Base Score: 7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)
ID: CVE-2016-7892 Title: Adobe Flash Player Use-After-Free Code Execution Vulnerability Vendor: Adobe Description: Remote exploitation of a use-after-free vulnerability in Adobe's Flash Player could allow attackers to execute arbitrary code. Adobe is aware of a report that an exploit for CVE-2016-7892 exists in the wild, and is being used in limited targeted attacks. CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)
ID: CVE-2016-5195 Title: Linux Kernel "MAP_PRIVATE COW" Privilege Escalation Vulnerability Vendor: Kernel.Org Description: A race condition vulnerability has been identified in the Linux Kernel. The Linux Kernel's memory subsystem does not properly handle copy-on-write(COW) breakage of private read-only memory mappings. The vulnerability has been identified as "Dirty Cow." CVSS v2 Base Score: 6.6 (AV:L/AC:M/Au:S/C:C/I:C/A:C)
ID: CVE-2016-6366 Title: Cisco Adaptive Security Appliance SNMP Buffer Overflow Code Execution Vulnerability Vendor: Cisco Description: Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON. CVSS v2 Base Score: 8.5 (AV:N/AC:M/Au:S/C:C/I:C/A:C)
ID: CVE-2016-1017 Title: Adobe Flash Player "AS2 LoadVars" Use-after-free Code Execution Vulnerability (APSA16-10) Vendor: Adobe Description: Use-after-free vulnerability in the LoadVars.decode function in Adobe Flash Player before 18.0.0.343 and 19.x through 21.x before 21.0.0.213 on Windows and OS X and before 11.2.202.616 on Linux allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-1011, CVE-2016-1013, CVE-2016-1016, and CVE-2016-1031. CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)
ID: CVE-2016-0189 Title: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability Vendor: Microsoft Description: The Microsoft (1) JScript 5.8 and (2) VBScript 5.7 and 5.8 engines, as used in Internet Explorer 9 through 11 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-0187. CVSS v2 Base Score: 7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)
=========================================================MOST PREVALENT MALWARE FILES 2016-01-24 - 2017-01-31: COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
SHA 256: ae7327f36a659d01a85d4071a4570458ec03a05a6ce7d2f6d092fb46aff3e739 MD5: fa1f769475516b03881602d0824cae12 VirusTotal: https://www.virustotal.com/file/ae7327f36a659d01a85d4071a4570458ec03a05a6ce7d2f6d092fb46aff3e739/analysis/#additional-info Typical Filename: printerinstallerclientupdater.exe Claimed Product: Printer Updater Client Detection Name: W32.AE7327F36A-95.SBX.TG
SHA 256: bcffda040c93b743bca1a67128ec1f60595dc0b14655afd7949b6c779e0e997f MD5: 2dbf779808d2ec3f5121891be9f4b1cf VirusTotal: https://www.virustotal.com/file/bcffda040c93b743bca1a67128ec1f60595dc0b14655afd7949b6c779e0e997f/analysis/#additional-info Typical Filename: helperamc Claimed Product: Advanced Mac Cleaner Detection Name: OSX.Variant:AMCZ.19if.1201
SHA 256: 2a3c6020418ba65020feffc50d30ad77aa6f87bb97e831f9d19585c5c0fbf439 MD5: 220a227048a34c7145aa3af9b29a39c5 VirusTotal: https://www.virustotal.com/file/2a3c6020418ba65020feffc50d30ad77aa6f87bb97e831f9d19585c5c0fbf439/analysis/#additional-info Typical Filename: mfon.zip Claimed Product: Mac File Opener Detection Name: W32.Auto.2a3c60.201455.in01
SHA 256: f9b8f7f285f811ee720cce7bccd98a421a26fb90dd7b022118d4b4e1f340036b MD5: 0612402ad98c8c31cd6f2b914a419039 VirusTotal: https://www.virustotal.com/file/f9b8f7f285f811ee720cce7bccd98a421a26fb90dd7b022118d4b4e1f340036b/analysis/#additional-info Typical Filename: wingqvaqb.exe Claimed Product: (none) Detection Name: W32.F9B8F7F285-95.SBX.TG
SHA 256: d3dbe14033ad25a5e4ffe1e2b559e53ee1d1799eb54eedbd7a689d6a88fd7137 MD5: f4be84934734b03d7f11e22b4de7fd0a VirusTotal: https://www.virustotal.com/file/d3dbe14033ad25a5e4ffe1e2b559e53ee1d1799eb54eedbd7a689d6a88fd7137/analysis/#additional-info Typical Filename: Danielic Claimed Product: (unknown) Detection Name: OSX.MAC:Malwaregen.19hh.1201
=============================================================(c) 2017. 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, 11200 Rockville Pike, Suite 200, North Bethesda, MD 20852
