@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 16, 2017=============================================================
@RISK: The Consensus Security Vulnerability Alert
Vol. 17, Num. 07
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 2017-02-07 - 2017-02-14
============================================================TOP VULNERABILITY THIS WEEK: ISC Releases Security Advisory for BIND To Resolve Denial of Service Attack
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============================================================ TRAINING UPDATE--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
-- Threat Hunting & IR Summit & Training 2017 | New Orleans, LA | April 18-25, 2017 | Will you be the hunter or the prey? Two days of in-depth Summit talks, 7 world-class SANS courses, DFIR NetWars, and exclusive networking opportunities! http://www.sans.org/u/pSt
-- SANS Baltimore Spring 2017 | April 24-29 | http://www.sans.org/u/pSy
-- SANS London July 2017 | July 3-8 | http://www.sans.org/u/pSD
-- SANS Cyber Defence Singapore | July 10-15 | http://www.sans.org/u/pSI
-- 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! Register by March 1 and choose a GIAC Certification Attempt or $400 Off your On Demand or vLive course!
-- OnDemand http://www.sans.org/u/pS9
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-- 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
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============================================================NOTABLE RECENT SECURITY ISSUES
SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: ISC Releases Security Advisory for BIND To Resolve Denial of Service Attack Description: ISC has released a security advisory for BIND to address CVE-2017-3135, a denial of service vulnerability. CVE-2017-3135 manifests under certain conditions when both DNS64 and RPZ are used to rewrite query responses. In some instances, query processing "can resume in an inconsistent state" and result in a assertion failure or NULL pointer dereference. Workarounds to avoid this vulnerability are possible, but ISC recommends BIND should be upgraded as updated that address this vulnerability have been made available. Reference: https://kb.isc.org/article/AA-01453 Snort SID: Detection pending release of vulnerability information
Title: Adobe Releases Security Bulletins for Flash Player, Digital Editions, and Campaign Description: Adobe has released three security bulletins for Flash Player, Digital Editions, and Campaign. In total, 24 vulnerabilities were resolved across the three bulletins with 13 Flash Player flaws fixed, 9 Digital Editions flaws fixed, and 2 Campaign flaws fixed. The Flash Player bulletin notes that all 13 flaws could possibly lead to remote code execution with all them being memory corruptions, heap buffer overflows, use-after-frees, integer overflows, and type confusion flaws. Reference: - https://helpx.adobe.com/security/products/flash-player/apsb17-04.html - https://helpx.adobe.com/security/products/Digital-Editions/apsb17-05.html - https://helpx.adobe.com/security/products/campaign/apsb17-06.html Snort SID: 41603-41604, 41611-41624, 41627-41632
============================================================INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
New Attack, Old Tricks - Macro-based Malware Observed on macOS https://objective-see.com/blog/blog_0x17.html
How to build a 8 GPU password cracker https://www.shellntel.com/blog/2017/2/8/how-to-build-a-8-gpu-password-cracker
Go RAT, Go! AthenaGo points "TorWords" Portugal http://blog.talosintel.com/2017/02/athena-go.html?f_l=s
USB Key Cleaner: CIRCLean https://n0where.net/usb-key-cleaner-circlean/?
U.S. House of Representatives Passes Long-Sought Email Privacy Bill https://krebsonsecurity.com/2017/02/house-passes-long-sought-email-privacy-bill/?
Microsoft delays its usual Patch Tuesday updates http://www.zdnet.com/article/microsoft-delays-its-usual-patch-tuesday-updates/
=========================================================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-2016-9244 Title: F5 BIG-IP SSL Information Disclosure Vulnerability Vendor: F5 Description: A BIG-IP virtual server configured with a Client SSL profile that has the non-default Session Tickets option enabled may leak up to 31 bytes of uninitialized memory. A remote attacker may exploit this vulnerability to obtain Secure Sockets Layer (SSL) session IDs from other sessions. It is possible that other data from uninitialized memory may be returned as well. CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
ID: CVE-2017-3823 Title: Cisco WebEx Google Chrome Extension Remote Code Execution Vulnerability Vendor: Cisco Description: An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control plugin before 10031.6.2017.0126 on Internet Explorer, and the Download Manager ActiveX control plugin before 2.1.0.10 on Internet Explorer. A vulnerability in these Cisco WebEx browser extensions could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server and Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center) when they are running on Microsoft Windows. The vulnerability is a design defect in an application programing interface (API) response parser within the extension. An attacker that can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser. 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-2016-6366 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 2016-02-07 - 2017-02-14: COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
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: 280c48828f845c55a14a2930cf2105f65a220a471c0c71515c69d77aabfed054 MD5: dd0b29dbd6f54d217e75739520e090a6 VirusTotal: https://www.virustotal.com/file/280c48828f845c55a14a2930cf2105f65a220a471c0c71515c69d77aabfed054/analysis/#additional-info Typical Filename: Delivery-Details.zip Claimed Product: N/A Detection Name: W32.Auto:280c48828f.in05.Talos
SHA 256: e3a1b642e1e097ad51aaf00ac04f95a542ca532d1527897543dd46b4c4a8aa8a MD5: 96233bf468ffa3039764e39dc2e4aab4 VirusTotal: https://www.virustotal.com/file/e3a1b642e1e097ad51aaf00ac04f95a542ca532d1527897543dd46b4c4a8aa8a/analysis/#additional-info Typical Filename: x9500. x552E. x4E3B. x7BA1 x8BE5 x5982 x4F55 x5B9A x4F4D.docx Claimed Product: N/A Detection Name: DOCX.Auto:e3a1b642e1.in05.Talos
SHA 256: 09e8114c3198af5e854ca0cf863d6651313c392bbf89761cf39e9cc312a40e24 MD5: 3f9a39ce158010d21ac983311fa2e41f VirusTotal: https://www.virustotal.com/file/09e8114c3198af5e854ca0cf863d6651313c392bbf89761cf39e9cc312a40e24/analysis/#additional-info Typical Filename: 32957.doc Claimed Product: N/A Detection Name: W32.09E8114C31-100.SBX.TG
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