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@RISK Newsletter for November 17, 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. 46

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 2016-11-08 - 2016-11-15


TOP VULNERABILITY THIS WEEK: OpenSSL Releases Security Advisory for Three Vulnerabilities


NOTABLE RECENT SECURITY ISSUES

SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

Title: OpenSSL Releases Security Advisory for Three Vulnerabilities
Description: OpenSSL has released a security advisory for the open-source cryptography library to address three vulnerabilities. The most severe vulnerability, CVE-2016-7054, is a heap-buffer-overflow flaw that could result in a denial-of-service. The other two vulnerabilities, CVE-2016-7053 and CVE-2016-7055, are rated “moderate” and “low” respectively. CVE-2016-7053 is null dereference flaw that could crash OpenSSL while CVE-2016-7055 is a logic error in the Broadwell-specific Montgomery multiplication procedure and is deemed to be difficult, if not impossible, to practically exploit. OpenSSL has released as software update that addresses these flaws for OpenSSL 1.1.0. Earlier versions are not affected.
Reference: https://www.openssl.org/news/secadv/20161110.txt
Snort SID: Detection pending release of vulnerability information

Title: VMware Issues Critical Security Advisory for Workstation and Fusion Products
Description: VMware has issued a critical security advisory to address CVE-2016-7461, a vulnerability within its Workstation and Fusion products. CVE-2016-7461 is a out-of-bounds memory access vulnerability that manifests in the drag-and-drop functionality of both Workstation and Fusion and could potentially allow a guest OS to execute code in the context of the host OS, thus escaping the sandbox. Users are advised to update their VMware Workstation and Fusion installations. Additionally, for users who are unable to immediately update, users can disable drag-and-drop and copy-and-paste functionality to mitigate this risk of compromise.
Reference: https://www.vmware.com/security/advisories/VMSA-2016-0019.html
Snort SID: Detection pending release of vulnerability information

Title: Vulnerability in cryptsetup Disclosed
Description: Researchers at the Polytechnic University of Valencia in Spain have disclosed a vulnerability they’ve identified in cryptsetup, a utility which is used to set up encrypted filesystems on Linux machines. CVE-2016-4484 manifests as a logic error on bootup where if a user attempts to decrypt the volume too many times, the system will fail in an unsafe manner and drop a user into a shell with root permissions. It should be noted that any data contained within the encrypted volume remains encrypted. However, other partitions that are not encrypted could still be accessed. Note that this vulnerability has been patched in Debian.
Reference: http://hmarco.org/bugs/CVE-2016-4484/CVE-2016-4484_cryptsetup_initrd_shell.html


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

HackingTeam back for your Androids, now extra insecure!
http://rednaga.io/2016/11/14/hackingteam_back_for_your_androids/

Russian ‘Dukes’ of Hackers Pounce on Trump Win
https://krebsonsecurity.com/2016/11/russian-dukes-of-hackers-pounce-on-trump-win/

Master Decryption Keys and Decryptor for the CrySiS Ransomware Released
http://www.bleepingcomputer.com/news/security/master-decryption-keys-and-decryptor-for-the-crysis-ransomware-released-/

Lobbyists Press Trump to Support Strong Encryption, Surveillance Reform
https://threatpost.com/lobbyists-press-trump-to-support-strong-encryption-surveillance-reform/121960/

Metasploitable3: An Intentionally Vulnerable Machine for Exploit Testing
https://community.rapid7.com/community/metasploit/blog/2016/11/15/test-your-might-with-the-shiny-new-metasploitable3


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 2016-11-08 - 2016-11-15:

COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: c8bc4cdc187319bbbe0f663da7153f9a9cccf265484b779041d442a3a8fd3b87
MD5: 5a1107ce5b82eddb5318d44b05b2985e
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: FedEx.doc
Claimed Product: N/A
Detection Name: W32.C8BC4CDC18-100.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

SHA 256: b273c5e1fc95672afb46bd9248855fb2df59f81a8056c048008b9cce24550107
MD5: 4267e99e4a9f99e28bd58d6e6bd287e7
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: FedEx.doc
Claimed Product: N/A
Detection Name: W32.B273C5E1FC-100.SBX.TG

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

SHA 256: 4665c9d5c277cacd3d02dbde9068383608010efaff0bb0651e6434c45e79c387
MD5: ea97455784c8036d1eb45dace2af14f0
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: FedEx.doc
Claimed Product: (none)
Detection Name: W32.4665C9D5C2-95.SBX.TG


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