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@RISK Newsletter for October 06, 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. 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 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 2016-09-27 - 2016-10-04


TOP VULNERABILITY THIS WEEK: ISC Releases Security Advisory For BIND To Address High Severity Denial of Service Bug


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

Title: ISC Releases Security Advisory For BIND To Address High Severity Denial of Service Bug
Description: ISC has released a security advisory to address CVE-2016-2776, a denial-of-service security vulnerability in BIND that was responsibly disclosed. CVE-2016-2776 manifests as a “defect in the rendering of messages into packets” when a certain error condition is met and “can cause named to exit with an assertion failure.” This vulnerability is exploitable “even if the apparent source address isn’t allowed to make queries (i.e. doesn’t match ‘allow-query’).” ISC has released a software update that addresses this vulnerability. However, ISC notes that a Metasploit module and a breakdown of the issue has been published. Additionally, ISC notes that there have been crashes reported reflecting this vulnerability is under active exploitation.
Reference: https://kb.isc.org/article/AA-01419/74/CVE-2016-2776
Snort SID: Detection pending

Title: Cisco Release Security Advisory for Email Security Appliances (ESAs)
Description: Cisco has released a security advisory for Email Security Appliance (ESA) customers to address CVE-2016-6406, an internal testing interface vulnerability that could allow a remote attacker to gain control of the device. CVE-2016-6404 manifests due to the “presence of a Cisco internal testing and debugging interface” which is “intended for use during product manufacturing only,” but is present on customer-available software builds. However, this vulnerability only affect devices running a specific software version, have only been rebooted at most once since one of the affected software updates was installed, and the “Enrollment Client component version is earlier than version 1.0.2-065.” Devices that have been rebooted two or more times since installation of an affected software version are not vulnerable. Cisco has released a software update to address this vulnerability.
Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160922-esa
Snort SID: 40275


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Apple to Block WoSign CA Free SSL Certificates
https://support.apple.com/en-us/HT204132

RIG evolves, Neutrino waves goodbye, Empire Pack appears
http://malware.dontneedcoffee.com/2016/10/rig-evolves-neutrino-waves-goodbye.html

How Stampado Ransomware Analysis Led To Yara Improvements
http://blog.trendmicro.com/trendlabs-security-intelligence/stampado-ransomware-analysis-led-yara-improvements/

A Tale of a DNS Packet - A Technical Write-up of CVE-2016-2776
http://blog.infobytesec.com/2016/10/a-tale-of-dns-packet-cve-2016-2776.html

DerbyCon 2016 CTF Write Up
https://labs.nettitude.com/blog/derbycon-2016-ctf-write-up/


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-2016-6366
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-2016-4171
Title: Adobe Flash Code Execution Vulnerability (APSA16-03)
Vendor: Adobe
Description: Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in June 2016.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2016-0185
Title: Microsoft Windows Media Center Input Validation Remote Code Execution Vulneraiblity (MS16-059)
Vendor: Microsoft
Description: Media Center in Microsoft Windows Vista SP2, Windows 7 SP1, and Windows 8.1 allows remote attackers to execute arbitrary code via a crafted Media Center link (aka .mcl) file, aka “Windows Media Center Remote Code Execution Vulnerability.”
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)

ID: CVE-2016-3081
Title: Apache Struts Input Validation Remote Code Execution Vulnerability
Vendor: Apache Structs
Description: Apache Struts 2.x before 2.3.20.2, 2.3.24.x before 2.3.24.2, and 2.3.28.x before 2.3.28.1, when Dynamic Method Invocation is enabled, allow remote attackers to execute arbitrary code via method: prefix, related to chained expressions.
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)


MOST PREVALENT MALWARE FILES 2016-09-27 - 2016-10-04 COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: 69113513b5cacc1f2bc9f3286a457b2f51f4f9f8dd382799a7040fce98b487ec
MD5: e7ffbf782cb9c518b8a16f40c54c2489
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: bulk_inquiry_517428.doc
Claimed Product: N/A
Detection Name: W32.69113513B5-100.SBX.TG

SHA 256: 0cc3061df4ba0055488c48079c176af273bf5749a6c5d7aa73753041dc3a4d97
MD5: 537115f7e587bd664ee85c54ba815dae
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: bulk_inquiry2.doc
Claimed Product: N/A
Detection Name: W32.0CC3061DF4-100.SBX.TG

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

SHA 256: fb8a12b88f8bb996f4ff0d5579a9f65ed248f383ea9e3193a58f933562657b53
MD5: 4cd6e4a5d90d3fcf51ee3258b8051ab2
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: 877a5aaed802de3d6a371427581b3d07980b378a.exe
Claimed Product: Nasaser
Detection Name: W32.FB8A12B88F-95.SBX.TG

SHA 256: 0f24fffb0ec8c675151ee1e211130a2062855de46882b07dcdf8f16ad60030df
MD5: 5b7d751bd2bd34a188f62a0a9270e225
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: RecHelper.dll
Claimed Product: Rec Helper
Detection Name: W32.0F24FFFB0E-95.SBX.TG


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