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@RISK Newsletter for December 15, 2016 The Consensus Security Vulnerability Alert

This is a weekly newsletter that provides in-depth analysis of the latest vulnerabilities with straightforward remediation advice. Qualys supplies a large part of the newly-discovered vulnerability content used in this newsletter.


@RISK: The Consensus Security Vulnerability Alert
Vol. 16, Num. 50

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 https://www.qualys.com/research/sans-at-risk/


CONTENTS:

NOTABLE RECENT SECURITY ISSUES
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES 2016-12-06 - 2016-12-13


TOP VULNERABILITY THIS WEEK: Mirai Variant Targets Modems Used By Deutsche Telekom Customers


NOTABLE RECENT SECURITY ISSUES SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

Title: Microsoft Releases Final Monthly Set of Security Bulletins for 2016
Description: Microsoft has released its final set of security bulletins for 2016 with its December release. This month’s release sees 12 new bulletins addressing 42 unique vulnerabilities. Six bulletins are rated critical and address security flaws in Edge, Internet Explorer, Graphic Component, Office, Uniscribe, and Adobe Flash. The remaining six bulletins are rated important and address vulnerabilities in .NET, the Common Log File System Driver, and various different aspects of the Windows Kernel.
Reference: https://technet.microsoft.com/library/security/ms16-dec
Snort SID: 40647-40648, 40936-40990, 40992-40993

Title: Apple Releases Security Updates for its Operating Systems (iOS, macOS, tvOS, watchOS), iCloud, iTunes, and Safari
Description: Apple has released security updates for its operating systems (iOS, macOS, tvOS, and watchOS) and components such as iCloud, iTunes, and Safari. Overall, 71 vulnerabilities in macOS and 64 vulnerabilities in iOS were addressed with the most severe being arbitrary code execution of the user’s choosing as well as privilege escalation flaws.
Reference: https://support.apple.com/en-us/HT201222
Snort SID: Detection pending release of vulnerability information

Title: Adobe Releases Security Updates for Digital Editions, Flash Player, and other products
Description: Adobe has released security updates for various products such as Digital Editions, InDesign, Experience Manager, Flash Player, and more. The Flash Player security bulletin addresses 16 vulnerabilities with one (CVE-2016-7892) being used in “limited, targeted attacks against users running Internet Explorer (32-bit) on Windows.” As with previous advisories, most of the Flash Player vulnerabilities that were fixed were user-after-free vulnerabilities, buffer overflow vulnerabilities, and memory corruption vulnerabilities. Users are advised to disable or remove Adobe Flash Player from their systems if it’s deemed unnecessary and to upgrade if it’s required.
Reference: https://helpx.adobe.com/security.html
Snort SID: Detection pending

Title: Various Netgear Routers Found To be Vulnerable to Arbitrary Command Injection
Description: Researchers have identified that various Netgear router models contain an arbitrary command injection vulnerability. An attacker who convinces a user to visit a specifically crafted website could execute arbitrary commands on the device. Alternatively, a user who sends a specifically formatted request directly to the device can also execute arbitrary commands. Note that while there is no permanent solution to address the vulnerability currently, there is a way to “temporarily disable the vulnerable web server” using the “very vulnerabilities that exist on affected routers.” Netgear is aware of the issue and is currently in the process of developing a firmware update to address the vulnerabilities.
Reference: - http://www.kb.cert.org/vuls/id/582384

Snort SID: Detection pending

Title: Critical Vulnerabilities in McAfee VirusScan for Linux Addressed
Description: An independent researcher has identified several critical vulnerabilities in McAfee VirusScan For Linux where an attacker could achieve remote code execution as root on an affected device. Achieving remote code execution requires the attacker to combine various exploits to brute-force authentication tokens, reconfigure the service to poll a malicious update server, and force the the creation and execution of a malicious script on the vulnerable device. McAfee has released a patch to address these vulnerabilities.
Reference: - https://kc.mcafee.com/corporate/index?page=content&id=SB10181

Snort SID: Detection pending


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Floki Bot Strikes, Talos and Flashpoint Respond
http://blog.talosintel.com/2016/12/flokibot-collab.html?f_l=s

The 2016 SANS Holiday Hack Challenge
https://holidayhackchallenge.com/2016/

New Scheme: Spread Popcorn Time Ransomware, get chance of free Decryption Key
https://www.bleepingcomputer.com/news/security/new-scheme-spread-popcorn-time-ransomware-get-chance-of-free-decryption-key/

IPv6 spoofing trickery
http://c-skills.blogspot.com/2016/12/ipv6-spoofing-trickery.html

NYU Students Apply Blockchain Solution to Electronic Voting Security
https://threatpost.com/nyu-students-apply-blockchain-solution-to-electronic-voting-security/122382/


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-2016-7892
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-2016-0752
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 2016-12-06 - 2016-12-13 COMPILED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: 76bfca49c7953827efac0936923ed5dd016c14962292045a99f7f2b21878d3a6
MD5: 647a0cfb3b7d0f3dc617f7c05cd64562
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: mfon.zip
Claimed Product: Mac File Opener.app
Detection Name: W32.Trojan.NM

SHA 256: ae7327f36a659d01a85d4071a4570458ec03a05a6ce7d2f6d092fb46aff3e739
MD5: fa1f769475516b03881602d0824cae12
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: PrinterInstallerClientUpdater.exe
Claimed Product: Printer Installer Client Updater
Detection Name: W32.AE7327F36A-95.SBX.TG

SHA 256: 0e35cfb9b36389b67c726719eb6f9164c9bead85f41fb3a029231cf280dca014
MD5: 282786632cf3c3bfba94f55f93660fbd
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: 30633.doc
Claimed Product: N/A
Detection Name: W32.0E35CFB9B3-100.SBX.TG

SHA 256: 8d75ab8c4459c8d6b9e9fe0bf488bc14caa238fa764a8a7da1de2d1c4f56d876
MD5: a8e2b826b2a8fda8642012cc1f93bb86
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: BSC_Purchase_Report-T9CUID0UQU.doc
Claimed Product: N/A
Detection Name: W32.8D75AB8C44-100.SBX.TG

SHA 256: bcffda040c93b743bca1a67128ec1f60595dc0b14655afd7949b6c779e0e997f
MD5: 2dbf779808d2ec3f5121891be9f4b1cf
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: helperamc
Claimed Product: Advanced Mac Cleaner
Detection Name: OSX.Variant:AMCZ.19if.1201


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