@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 25, 2017=============================================================
@RISK: The Consensus Security Vulnerability Alert
Vol. 17, 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/at-risk
=============================================================CONTENTS:
NOTABLE RECENT SECURITY ISSUES
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES 2017-05-16 - 2017-05-23
============================================================TOP VULNERABILITY THIS WEEK: VMware Releases Security Advisory for VMware Workstation, Addressing Multiple Vulnerabilities
******************** Sponsored By Splunk ********************WhatWorks Webcast: Join SANS Director of Emerging Security Trends John Pescatore and Ryan Niemes, Lead Security Analyst at Illumina, who will share details on the selection, deployment and experience using Splunk Enterprise Security and Splunk Cloud. Hear about lessons learned and best practices as well as detail the metrics used to demonstrate the value of Splunk. http://www.sans.org/info/195030
============================================================TRAINING UPDATE
-- SANS San Francisco Summer 2017 | June 5-10 | http://www.sans.org/u/qE8
-- SANS Security Operations Center Summit & Training | Washington, DC | June 5-12 | Build more effective security operations. Two days of in-depth Summit talks, 5 SANS courses, exclusive networking opportunities, & more! http://www.sans.org/u/qof
-- SANS Secure Europe 2017 | Amsterdam, NL | June 12-20 | http://www.sans.org/u/qqA
-- Digital Forensics & Incident Response Summit & Training | Austin, TX | June 22-29 | Two days of in-depth Summit talks, 9 SANS courses, DFIR NetWars, Night Out in Austin!, and @Night talks! http://www.sans.org/u/ryX
-- SANS Cyber Defence Canberra 2017 | June 26-July 8 | http://www.sans.org/u/qqF
-- 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
-- SANSFIRE 2017 | Washington, DC | July 22-29 | http://www.sans.org/u/r4U
-- SANS Network Security | Las Vegas, NV | September 10-17 | http://www.sans.org/u/rIS
-- 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!
-- SANS Online Training: Special Offer! Register by May 10 and receive a new iPad, Samsung Galaxy Tab A or take $350 off your OnDemand or vLive Course!
-- OnDemand http://www.sans.org/u/pS9
-- vLive http://www.sans.org/u/pSj
-- 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) Don't Miss: "Effortless Detection and Investigation of Cloud Breaches: A Review of Lacework's Zero Touch Cloud Workload Security Platform" Register: http://www.sans.org/info/195035
2) Webcast with Ben Wright: "Complying with Data Protection Law in a Changing World" Register: http://www.sans.org/info/195040
3) Efficiently Contain Threats and Ease Operations with Security Orchestration. Learn More: http://www.sans.org/info/195045
============================================================NOTABLE RECENT SECURITY ISSUES SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: VMware Releases Security Advisory for VMware Workstation, Addressing Multiple Vulnerabilities Description: VMware has released a security advisory for two vulnerabilities that have been identified in VMware Workstation. The first vulnerability, CVE-2017-4915, is an insecure library loading vulnerability that could "allow unprivileged host users to escalate their privileges to root in a Linux host machine." The second vulnerability, CVE-2017-4916, is a NULL pointer dereference vulnerability that could allow "host users with normal user privileges to trigger a denial-of-service in a Windows host machine." VMware has released a software update that addresses these vulnerabilities. Reference: https://www.vmware.com/security/advisories/VMSA-2017-0009.html Snort SID: Detection pending release of vulnerability information
============================================================INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
XSS over SMS: Hacking Text Messages in Verizon Messages https://randywestergren.com/xss-sms-hacking-text-messages-verizon-messages/
Publish tweets by any other user http://kedrisec.com/twitter-publish-by-any-user/
Chaos Computer Clubs breaks iris recognition system of the Samsung Galaxy S8 https://www.ccc.de/en/updates/2017/iriden
WannaCry was basic, next time could be much worse http://www.zdnet.com/article/ransomware-wannacry-was-basic-next-time-could-be-much-worse/
Patches Pending for Medical Devices Hit By WannaCry https://threatpost.com/patches-pending-for-medical-devices-hit-by-wannacry/125758/
=========================================================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-2017-0145 Title: Microsoft Windows SMB Remote Code Execution Vulnerability Vendor: Microsoft Description: The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0146, and CVE-2017-0148. CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
ID: CVE-2017-0290 Title: Microsoft Malware Protection Engine Remote Code Execution Vulnerability Vendor: Microsoft Description: NScript in mpengine in Microsoft Malware Protection Engine with Engine Version before 1.1.13704.0, as used in Windows Defender and other products, allows remote attackers to execute arbitrary code or cause a denial of service (type confusion and application crash) via crafted JavaScript code within any file scanned by this engine. CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
ID: CVE-2017-3881 Title: Cisco IOS and IOS XE Software Cluster Management Protocol Remote Code Execution Vulnerability Vendor: Cisco Description: A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges. The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster members. The vulnerability is due to the combination of two factors: (1) the failure to restrict the use of CMP-specific Telnet options only to internal, local communications between cluster members and instead accept and process such options over any Telnet connection to an affected device; and (2) the incorrect processing of malformed CMP-specific Telnet options. An attacker could exploit this vulnerability by sending malformed CMP-specific Telnet options while establishing a Telnet session with an affected Cisco device configured to accept Telnet connections. An exploit could allow an attacker to execute arbitrary code and obtain full control of the device or cause a reload of the affected device. This affects Catalyst switches, Embedded Service 2020 switches, Enhanced Layer 2 EtherSwitch Service Module, Enhanced Layer 2/3 EtherSwitch Service Module, Gigabit Ethernet Switch Module (CGESM) for HP, IE Industrial Ethernet switches, ME 4924-10GE switch, RF Gateway 10, and SM-X Layer 2/3 EtherSwitch Service Module. Cisco Bug IDs: CSCvd48893. CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
ID: CVE-2017-7269 Title: Microsoft IIS 6.0 ScStoragePathFromUrl Buffer Overflow Vulnerability Vendor: Microsoft Description: Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to execute arbitrary code via a long header beginning with "If: http://" in a PROPFIND request, as exploited in the wild in July or August 2016. CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
ID: CVE-2017-5638 Title: Apache Struts2 Input Validation Code Execution Vulnerability Vendor: Apache Description: The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 mishandles file upload, which allows remote attackers to execute arbitrary commands via a #cmd= string in a crafted Content-Type http header, as exploited in the wild in March 2017. CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
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-2016-7892 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)
=========================================================MOST PREVALENT MALWARE FILES 2017-05-16 - 2017-05-23: COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
SHA 256: 0777cf69bbf14a13aa73bb4ea638d5d5863a11f8f16494e14b3068d154a428ee MD5: b5a8f6b111211256ba83abcb3cd1d61a VirusTotal: https://www.virustotal.com/file/0777cf69bbf14a13aa73bb4ea638d5d5863a11f8f16494e14b3068d154a428ee/analysis/#additional-info Typical Filename: winpup32.exe Claimed Product: (none) Detection Name: W32.0777CF69BB-100.SBX.VIOC
SHA 256: bcffda040c93b743bca1a67128ec1f60595dc0b14655afd7949b6c779e0e997f MD5: 2dbf779808d2ec3f5121891be9f4b1cf VirusTotal: https://www.virustotal.com/file/bcffda040c93b743bca1a67128ec1f60595dc0b14655afd7949b6c779e0e997f/analysis/#additional-info Typical Filename: helperamc Claimed Product: Advanced Mac Clenaer Detection Name: OSX.Variant:AMCZ.19if.1201
SHA 256: b98d862e2ff6d0fd9185548b3becb5032720531b066afc41e7e57764a6b58583 MD5: fd20a8d69dba9ead569e32979f26c8b9 VirusTotal: https://www.virustotal.com/file/b98d862e2ff6d0fd9185548b3becb5032720531b066afc41e7e57764a6b58583/analysis/#additional-info Typical Filename: mpeg.exe Claimed Product: (none) Detection Name: W32.B98D862E2F.Ramnit.tht.Talos
SHA 256: 10321320369049daf9e10a898d44d489c5c1eba376c4ee9144257e2285634aa8 MD5: 000535e97cb8d48cd9508f581d2b0a95 VirusTotal: https://www.virustotal.com/file/10321320369049daf9e10a898d44d489c5c1eba376c4ee9144257e2285634aa8/analysis/#additional-info Typical Filename: 07027729.PDF Claimed Product: N/A Detection Name: W32.1032132036-100.SBX.TG
SHA 256: ba220972bca46f9b7e81c0732967529141a210902d55424d0a9323a01ce3cfbf MD5: e18712101c3a223c2eb31e82788603bf VirusTotal: https://www.virustotal.com/file/ba220972bca46f9b7e81c0732967529141a210902d55424d0a9323a01ce3cfbf/analysis/#additional-info Typical Filename: 86487458.PDF Claimed Product: N/A Detection Name: W32.BA220972BC-100.SBX.TG
=============================================================(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
