@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.
November 17, 2016=============================================================
@RISK: The Consensus Security Vulnerability Alert
Vol. 16, Num. 46
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 2016-11-08 - 2016-11-15
============================================================TOP VULNERABILITY THIS WEEK: OpenSSL Releases Security Advisory for Three Vulnerabilities
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============================================================ TRAINING UPDATE--Cyber Defense Initiative ® 2016 | December 10-17, 2016 | Washington, DC | 35+ InfoSec courses ranging from introductory level to the most advanced training available. Test your skills at the DFIR NetWars Tournament, CORE NetWars Experience, and the Annual NetWars Tournament of Champions. Participate in a variety of evening bonus sessions, the vendor solutions expo and network with like-minded security professionals. http://www.sans.org/u/kYV
--SANS Amsterdam 2016 | December 12-17, 2016 | Amsterdam, Netherlands | http://www.sans.org/u/maj
--SANS Security East 2017 | January 9-14, 2017 | New Orleans, LA | 14 hands-on, intensive cyber security training courses for highly seasoned InfoSec professionals as well as those new to the field or transitioning from more general IT roles. Challenge your skills at the evening CORE NetWars Experience and network with your peers at the evening bonus sessions. http://www.sans.org/u/lcj
--Cloud Security Summit & Training | San Francisco, CA | Jan 17-19, 2017 | Two days of in-depth presentations addressing key challenges to security in the cloud. Following the summit, attend the new DEV534: Secure DevOps course. http://www.sans.org/u/mGE
--SANS Las Vegas 2017 | January 23-30, 2017 | Las Vegas, NV | Nine training courses in IT Security, Windows forensics, security management and ethical hacking. Plus multiple bonus evening talks. http://www.sans.org/u/lqU
--Cyber Threat Intelligence Summit & Training | Arlington, VA | Jan 25-Feb 1, 2017 | Two days of in-depth threat intelligence presentations, Six DFIR courses, two nights of DFIR NetWars, a Summit evening networking reception, and SANS@Night talks! http://www.sans.org/u/mGu
--SANS Southern California - Anaheim 2017 | February 6-11, 2017 | Anaheim, CA |
Choose from eight proven, cutting-edge courses presented by SANS top-rated instructors and take advantage of multiple bonus evening talks.
http://www.sans.org/u/mao
--SANS Secure Japan 2017 | February 13-25, 2017 | Tokyo, Japan | http://www.sans.org/u/lJi
--SANS Secure Singapore 2017 | March 13-25, 2017 | Singapore, Singapore | http://www.sans.org/u/mFV
-- 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!
-- 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: Plus Bangalore, Oslo, Tokyo, Munich, and San Diego 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: OpenSSL Releases Security Advisory for Three Vulnerabilities Description: OpenSSL has released a security advisory for the open-source cryptography library to address three vulnerabilities. The most severe vulnerability, CVE-2016-7054, is a heap-buffer-overflow flaw that could result in a denial-of-service. The other two vulnerabilities, CVE-2016-7053 and CVE-2016-7055, are rated "moderate" and "low" respectively. CVE-2016-7053 is null dereference flaw that could crash OpenSSL while CVE-2016-7055 is a logic error in the Broadwell-specific Montgomery multiplication procedure and is deemed to be difficult, if not impossible, to practically exploit. OpenSSL has released as software update that addresses these flaws for OpenSSL 1.1.0. Earlier versions are not affected. Reference: https://www.openssl.org/news/secadv/20161110.txt Snort SID: Detection pending release of vulnerability information
Title: VMware Issues Critical Security Advisory for Workstation and Fusion Products Description: VMware has issued a critical security advisory to address CVE-2016-7461, a vulnerability within its Workstation and Fusion products. CVE-2016-7461 is a out-of-bounds memory access vulnerability that manifests in the drag-and-drop functionality of both Workstation and Fusion and could potentially allow a guest OS to execute code in the context of the host OS, thus escaping the sandbox. Users are advised to update their VMware Workstation and Fusion installations. Additionally, for users who are unable to immediately update, users can disable drag-and-drop and copy-and-paste functionality to mitigate this risk of compromise. Reference: https://www.vmware.com/security/advisories/VMSA-2016-0019.html Snort SID: Detection pending release of vulnerability information
Title: Vulnerability in cryptsetup Disclosed Description: Researchers at the Polytechnic University of Valencia in Spain have disclosed a vulnerability they've identified in cryptsetup, a utility which is used to set up encrypted filesystems on Linux machines. CVE-2016-4484 manifests as a logic error on bootup where if a user attempts to decrypt the volume too many times, the system will fail in an unsafe manner and drop a user into a shell with root permissions. It should be noted that any data contained within the encrypted volume remains encrypted. However, other partitions that are not encrypted could still be accessed. Note that this vulnerability has been patched in Debian. Reference: http://hmarco.org/bugs/CVE-2016-4484/CVE-2016-4484_cryptsetup_initrd_shell.html
============================================================INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
HackingTeam back for your Androids, now extra insecure! http://rednaga.io/2016/11/14/hackingteam_back_for_your_androids/
Russian 'Dukes' of Hackers Pounce on Trump Win https://krebsonsecurity.com/2016/11/russian-dukes-of-hackers-pounce-on-trump-win/
Master Decryption Keys and Decryptor for the CrySiS Ransomware Released http://www.bleepingcomputer.com/news/security/master-decryption-keys-and-decryptor-for-the-crysis-ransomware-released-/
Lobbyists Press Trump to Support Strong Encryption, Surveillance Reform https://threatpost.com/lobbyists-press-trump-to-support-strong-encryption-surveillance-reform/121960/
Metasploitable3: An Intentionally Vulnerable Machine for Exploit Testing https://community.rapid7.com/community/metasploit/blog/2016/11/15/test-your-might-with-the-shiny-new-metasploitable3
=========================================================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-2016-5195 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-2016-0752 Title: Ruby on Rails Input Validation Remote Code Execution Vulnerability Vendor: rubyonrails.org Description: Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 allows remote attackers to read arbitrary files by leveraging an application's unrestricted use of the render method and providing a .. (dot dot) in a pathname. CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
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-2015-2866 Title: Grandsteam GXV3611_HD camera SQL injection Vulnerability Vendor: Grandstream Networks Description: SQL injection vulnerability on the Grandstream GXV3611_HD camera with firmware before 1.0.3.9 beta allows remote attackers to execute arbitrary SQL commands by attempting to establish a TELNET session with a crafted username. CVSS v2 Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
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)
ID: CVE-2016-1287 Title: Cisco ASA Software IKEv1 and IKEv2 Buffer Overflow Vulnerability Vendor: Cisco Description: Buffer overflow in the IKEv1 and IKEv2 implementations in Cisco ASA Software before 8.4(7.30), 8.7 before 8.7(1.18), 9.0 before 9.0(4.38), 9.1 before 9.1(7), 9.2 before 9.2(4.5), 9.3 before 9.3(3.7), 9.4 before 9.4(2.4), and 9.5 before 9.5(2.2) on ASA 5500 devices, ASA 5500-X devices, ASA Services Module for Cisco Catalyst 6500 and Cisco 7600 devices, ASA 1000V devices, Adaptive Security Virtual Appliance (aka ASAv), Firepower 9300 ASA Security Module, and ISA 3000 devices allows remote attackers to execute arbitrary code or cause a denial of service (device reload) via crafted UDP packets, aka Bug IDs CSCux29978 and CSCux42019. CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C) =========================================================
MOST PREVALENT MALWARE FILES 2016-11-08 - 2016-11-15: COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
SHA 256: c8bc4cdc187319bbbe0f663da7153f9a9cccf265484b779041d442a3a8fd3b87 MD5: 5a1107ce5b82eddb5318d44b05b2985e VirusTotal: https://www.virustotal.com/file/c8bc4cdc187319bbbe0f663da7153f9a9cccf265484b779041d442a3a8fd3b87/analysis/#additional-info Typical Filename: FedEx.doc Claimed Product: N/A Detection Name: W32.C8BC4CDC18-100.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: b273c5e1fc95672afb46bd9248855fb2df59f81a8056c048008b9cce24550107 MD5: 4267e99e4a9f99e28bd58d6e6bd287e7 VirusTotal: https://www.virustotal.com/file/b273c5e1fc95672afb46bd9248855fb2df59f81a8056c048008b9cce24550107/analysis/#additional-info Typical Filename: FedEx.doc Claimed Product: N/A Detection Name: W32.B273C5E1FC-100.SBX.TG
SHA 256: f9b8f7f285f811ee720cce7bccd98a421a26fb90dd7b022118d4b4e1f340036b MD5: 0612402ad98c8c31cd6f2b914a419039 VirusTotal: https://www.virustotal.com/file/f9b8f7f285f811ee720cce7bccd98a421a26fb90dd7b022118d4b4e1f340036b/analysis/#additional-info Typical Filename: weeli.exe Claimed Product: (none) Detection Name: W32.Malware:Pramro.19l0.1201
SHA 256: 4665c9d5c277cacd3d02dbde9068383608010efaff0bb0651e6434c45e79c387 MD5: ea97455784c8036d1eb45dace2af14f0 VirusTotal: https://www.virustotal.com/file/4665c9d5c277cacd3d02dbde9068383608010efaff0bb0651e6434c45e79c387/analysis/#additional-info Typical Filename: FedEx.doc Claimed Product: (none) Detection Name: W32.4665C9D5C2-95.SBX.TG
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