@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.
October 5, 2017=============================================================
@RISK: The Consensus Security Vulnerability Alert
Vol. 17, Num. 40
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 2017-09-26 - 2017-10-03
============================================================TOP VULNERABILITY THIS WEEK: Apple Releases macOS High Sierra 10.13, macOS Server 5.4, and iCloud for Windows 7.0; Multiple Vulnerabilities Addressed
******************** Sponsored By Syncurity ********************In case you missed it: "Shrinking Attack Dwell Times - A Phishing Case Study Demo." See how the attack dwell time can be compressed using a Security Automation & Orchestration platform that leverages the existing security stack and SOC tribal knowledge. http://www.sans.org/info/198645
============================================================TRAINING UPDATE
-- SANS Cyber Defense Initiative ® 2017 | Washington, DC | December 12-19 | http://www.sans.org/u/vNd
-- SANS Brussels Autumn 2017 | October 16-21 | http://www.sans.org/u/twY
-- SANS Tokyo Autumn 2017 | October 16-28 | http://www.sans.org/u/thk
-- SANS San Diego 2017| October 30-November 4 | http://www.sans.org/u/uWt
-- SANS Pen Test HackFest Summit & Training | Bethesda, MD | November 13-20 | http://www.sans.org/u/waL
-- SANS Sydney 2017 | November 13-25 | http://www.sans.org/u/wEL
-- SANS San Francisco Winter 2017 | November 27-December 2 | http://www.sans.org/u/wgE
-- SANS London November 2017 | November 27-December 2 | http://www.sans.org/u/wgJ
-- SIEM & Tactical Analytics Summit & Training | Scottsdale, AZ | November 28-December 5 | http://www.sans.org/u/wKk
-- SANS OnDemand and vLive Training | SANS Online Training - Get an iPad, a Samsung Galaxy Tab A or take $250 Off with OnDemand or vLive training through October 11. The SANS Training you want with the flexibility you need. http://www.sans.org/u/w15
-- Can't travel? SANS offers online instruction for maximum flexibility
-- Live Daytime training with Simulcast - http://www.sans.org/u/WK
-- Evening training 2x per week for 6 weeks with vLive - http://www.sans.org/u/WZ
-- Anywhere, Anytime access for 4 months with OnDemand format - http://www.sans.org/u/rEw
-- 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
Plus Brussels, Seattle, Sydney, London, and San Francisco all in the next 90 days.
For a list of all upcoming events, on-line and live: http://www.sans.org/u/XN
1) Is cloud more or less secure than on-premises infrastructure? Register to find out: http://www.sans.org/info/198650
2) Cisco TrustSec Software-Defined Segmentation enables the network to quickly identify, isolate, and counter cyber-threats. Learn More: http://www.sans.org/info/198655
3) Don't miss: "Isolate the Critical: How to Deploy Microsegmentation for Operational Resiliency" Register: http://www.sans.org/info/198660
============================================================NOTABLE RECENT SECURITY ISSUES SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: Apple Releases macOS High Sierra 10.13, macOS Server 5.4, and iCloud for Windows 7.0; Multiple Vulnerabilities Addressed
Description: Apple has released new versions of macOS for desktop and laptop devices as well as iCloud for Windows. These latest updates address various security vulnerabilities that have been identified. macOS High Sierra 10.13 contains fixes for 43 vulnerabilities with the most severe being a flaw that could allow an application to execute code with kernel level privileges. macOS Server 5.4 contains fixes for FreeRADIUS while iCloud for Windows addresses numerous WebKit vulnerabilities that could be used to execute arbitrary code when viewing malicious web content.
Reference:
- https://support.apple.com/en-us/HT208144
- https://support.apple.com/en-us/HT208102
- https://support.apple.com/en-us/HT208142
Snort SID: Detection pending release of vulnerability information
Title: Google Discloses Vulnerabilities Identified in DNSmasq
Description: Google has disclosed several vulnerabilities that have been identified in DNSmasq as a result of an internal security assessment. In total, seven vulnerabilities were identified, responsibly disclosed, and addressed. Three vulnerabilities that are of particular note are CVE-2017-14491, a remotely exploitable heap-based overflow, CVE-2017-14493, a remotely exploitable stack-based buffer overflow, and CVE-2017-14496, a denial of service flaw which affect Android. Network administrators are advised to update any devices or systems which may be running an older, vulnerable version of DNSmasq.
Reference: https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
Snort SID: 20242, 44477-44482
Title: NETGEAR Releases Security Advisories Addressing Vulnerabilities in Multiple Products
Description: NETGEAR has released several security advisories addressing vulnerabilities that have been identified in its routers, switches, and NAS devices. In total, 50 vulnerabilities were addressed with 20 of them rated "high" severity and the remaining 30 reated "medium" severity. Researchers note that several of the vulnerabilities are severe such as PSV-2017-1209, a command injection vulnerability that could be exploited without authentication.
Reference: http://www.netgear.com/about/security/
Snort SID: Detection pending release of vulnerability information
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
Judge: FBI Can Keep iPhone Crack and Price Secret
https://threatpost.com/judge-fbi-can-keep-iphone-crack-and-price-secret/128222/
Yahoo Triples Likely Scope of 2013 Hack to 3 Billion Users
https://www.bloomberg.com/news/articles/2017-10-03/yahoo-says-all-3-billion-users-probably-affected-by-2013-breach
Spanish court grants U.S. extradition for Russian hacking suspect
https://www.reuters.com/article/us-usa-cyber-extradition/spanish-court-grants-u-s-extradition-for-russian-hacking-suspect-idUSKCN1C81JN
DerbyCon 2017 CTF Write Up
https://labs.nettitude.com/blog/derbycon-2017-ctf-write-up/
Banking Trojan Attempts To Steal Brazillion$
http://blog.talosintelligence.com/2017/09/brazilbanking.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-2017-8759
Title: Microsoft .NET Framework Remote Code Execution Vulnerability
Vendor: Microsoft
Description: A remote code execution vulnerability exists when Microsoft .NET Framework processes untrusted input. Microsoft is aware of a report that an exploit for CVE-2017-8759 exists in the wild and is being used in targeted attacks.
Microsoft published a .NET security update to address this issue.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
ID: CVE-2017-9805
Title: Apache Struts REST plugin Remote Code Execution (S2-052)
Vendor: Apache Struts
Description: The REST Plugin is using a XStreamHandler with an instance of XStream for deserialization without any type filtering and this can lead to Remote Code Execution when deserializing XML payloads.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)
ID: CVE-2017-0037
Title: Microsoft Internet Explorer Remote Code Execution (MS17-007)
Vendor: Microsoft
Description: Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and crafted JavaScript code that operates on a TH element.
CVSS v2 Base Score: 7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)
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-2017-5638
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-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)
MOST PREVALENT MALWARE FILES 2017-09-26 - 2017-10-03: COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
SHA 256: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f
MD5: e2ea315d9a83e7577053f52c974f6a5a
VirusTotal: https://www.virustotal.com/file/c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f/analysis/#additional-info
Typical Filename: Tempmf582901854.exe
Claimed Product: (unknown)
Detection Name: W32.C3E530CC00-95.SBX.TG
SHA 256: e9cf17cb12e738e489164e93c1f3015cb245d12839bedb1a073046f519aad2be
MD5: cdb66ac810880ff5b3840e931d5d3bfb
VirusTotal: https://www.virustotal.com/file/e9cf17cb12e738e489164e93c1f3015cb245d12839bedb1a073046f519aad2be/analysis/#additional-info
Typical Filename: new order upcoming.doc
Claimed Product: N/A
Detection Name: W32.E9CF17CB12-100.SBX.TG
SHA 256: 87afd627b678da78d879dfe11c147b10f5db6e07cd16e5728ca33579e73bf89f
MD5: 515ea84f7ca8f59f7bb4fb5714913a72
VirusTotal: https://www.virustotal.com/file/87afd627b678da78d879dfe11c147b10f5db6e07cd16e5728ca33579e73bf89f/analysis/#additional-info
Typical Filename: helperamc.zip
Claimed Product: Advanced Mac Cleaner
Detection Name: W32.87AFD627B6-95.SBX.TG
SHA 256: 8f5a7ec56b6c7aed0476e9a45b7191949166c3c067c0ed40f727e73c177d5434
MD5: e94cfa8a3083add44192befa728f1934
VirusTotal: https://www.virustotal.com/file/8f5a7ec56b6c7aed0476e9a45b7191949166c3c067c0ed40f727e73c177d5434/analysis/#additional-info
Typical Filename: Bighits4u.exe
Claimed Product: Bighits4U Viewer
Detection Name: W32.8F5A7EC56B-95.SBX.TG
SHA 256: dd0d4ad4e8ec4ef68f6f43da3fd0ba6b106450e2995d8aea6ca6a84f3016a901
MD5: b7f42672ab448248af8c462f9c5603a8
VirusTotal: https://www.virustotal.com/file/dd0d4ad4e8ec4ef68f6f43da3fd0ba6b106450e2995d8aea6ca6a84f3016a901/analysis/#additional-info
Typical Filename: Documents.exe
Claimed Product: (none)
Detection Name: W32.Generic:Trojan.19li.1201
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