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@RISK Newsletter for November 03, 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. 44

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 2016-10-25 - 2016-11-01


TOP VULNERABILITY THIS WEEK: Adobe Releases Emergency Patch for Flash Player Zero Day Vulnerability Being Exploited in Wild

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

Title: Adobe Releases Emergency Patch for Flash Player Zero Day Vulnerability Being Exploited in Wild
Description: Adobe has released emergency out-of-band patch for Flash Player following the discovery a zero day vulnerability being actively exploited. Adobe’s latest update patches CVE-2016-7855, a use-after-free vulnerability that could be used to achieve remote code execution. Users and administrators are advised to either remove Flash Player from their systems, or patch as soon as possible if Flash Player is deemed necessary for business.
Reference: https://helpx.adobe.com/security/products/flash-player/apsb16-36.html
Snort SID: 40544-40545

Title: Google’s Threat Analysis Group Discloses Windows Kernel Zero Day Being Actively Exploited
Description: Google’s Threat Analysis Group has publicly disclosed the existence of a Windows kernel zero day vulnerability that is currently being exploited in the wild. According to Google, this vulnerability was disclosed to Microsoft on October 21 and is now being disclosed as Microsoft has not yet issued an advisory or fix for the vulnerability. Few details are currently known about the vulnerability other than it is a local privilege escalation bug in win32k.sys system call NtSetWindowLongPtr().
Reference: https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html
Snort SID: Detection pending release of vulnerability information


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Office 2013 can now block macros to help prevent infection
https://blogs.technet.microsoft.com/mmpc/2016/10/26/office-2013-can-now-block-macros-to-help-prevent-infection/

Killing Mirai: Active defense against an IoT botnet
https://www.invincealabs.com/blog/2016/10/killing-mirai/

Control Flow Guard Improvements in Windows 10 Anniversary Update
http://blog.trendmicro.com/trendlabs-security-intelligence/control-flow-guard-improvements-windows-10-anniversary-update/?

Google Announces Certificate Transparency Requirement Beginning in 2017
https://groups.google.com/a/chromium.org/forum/#!msg/ct-policy/78N3SMcqUGw/ykIwHXuqAQAJ

Sundown EK: You Better Take Care
http://blog.talosintel.com/2016/10/sundown-ek.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-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 2016-10-25 - 2016-11-01:

COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: 4b4fd57349e06056088ce758e2ce50dc75837b2f17307574b329208a31145247
MD5: 69b011d298e344c693c9866c4f8e73ea
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: irs_doc181356553.doc
Claimed Product: N/A
Detection Name: W32.4B4FD57349-100.SBX.TG

SHA 256: bcffda040c93b743bca1a67128ec1f60595dc0b14655afd7949b6c779e0e997f
MD5: 2dbf779808d2ec3f5121891be9f4b1cf
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: helperamc
Claimed Product: (none)
Detection Name: OSX.Variant:AMCZ.19if.1201

SHA 256: f4ae1a3d610a57547f014215a5d7aaed8572cd36aa77a9567c183f11430a6b55
MD5: 51e63633487f9180ec8031980684bf86
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: qwxr.exe
Claimed Product: (none)
Detection Name: W32.110165CEC1-100.SBX.VIOC

SHA 256: 4c424fe45453840002ac944d167c45e1f77000485848dec65a46ca53a2b04ba3
MD5: 3edda4e903d939eb94544b9ade771e1a
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: gvt_uk_01112016.doc
Claimed Product: N/A
Detection Name: W32.4C424FE454-100.SBX.TG

SHA 256: f9b8f7f285f811ee720cce7bccd98a421a26fb90dd7b022118d4b4e1f340036b
MD5: 0612402ad98c8c31cd6f2b914a419039
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: winpkaom.exe
Claimed Product: (none)
Detection Name: W32.Malware:Pramro.19l0.1201


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