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@RISK Newsletter for February 02, 2017 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. 17, Num. 05

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 2017-01-24 - 2017-01-31


TOP VULNERABILITY THIS WEEK: WordPress Releases Security Update


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

Title: WordPress Releases Security Update
Description: WordPress has released a security update for its blogging platform bringing the latest version up to 4.7.2. This latest update addresses three security issues with one being a SQL injection vulnerability, another being a cross-site scripting vulnerability, and the last one being a permissions enforcement error. WordPress versions 4.7.1 and earlier are affected by these three vulnerabilities.
Reference: https://wordpress.org/news/2017/01/wordpress-4-7-2-security-release/
Snort SID: Detection pending release of vulnerability information

Title: Cisco Releases Security Update for WebEx Browser Extension
Description: Cisco has released a security update for CVE-2017-3823, an arbitrary code execution flaw in the WebEx Browser Extension for Chrome, Firefox, and Internet Explorer. This flaw was previously identified by Tavis Ormandy of Google’s Project Zero and patched, but found incomplete. Cisco has released an updated version of the extension for all three browsers.
Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170124-webex
Snort SID: 41407-41409

Title: NETGEAR Releases Security Advisory for a Password Recovery and Exposure Vulnerability
Description: NETGEAR has released a security advisory for CVE-2017-5521, a password recovery and exposure vulnerability found in various NETGEAR home and small office routers. CVE-2017-5521 manifests as a flaw in how the firmware handles login passwords when the password recovery feature is disabled and can exploited via access on the internal network, or if remote management is enabled. NETGEAR has released software updates for various affected models.
Reference: - http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability

Snort SID: Detection pending release of vulnerability information


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Averting ransomware epidemics in corporate networks with Windows Defender ATP
https://blogs.technet.microsoft.com/mmpc/2017/01/30/averting-ransomware-epidemics-in-corporate-networks-with-windows-defender-atp/

Team Shellphish - Cyber Grand Shellphish
http://phrack.org/papers/cyber_grand_shellphish.html

Gmail will block .js file attachments starting February 13, 2017
https://gsuiteupdates.googleblog.com/2017/01/gmail-will-restrict-js-file-attachments.html

Dridex Banking Trojan Returns, Leverages New UAC Bypass Method
https://www.flashpoint-intel.com/blog-dridex-banking-trojan-returns/

EyePyramid: An Archaeological Journey
http://blog.talosintel.com/2017/01/Eye-Pyramid.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-2017-3823
Title: Cisco WebEx Google Chrome Extension Remote Code Execution Vulnerability
Vendor: Cisco
Description: A remote exploitation of an input validation error vulnerability in Cisco WebEx browser extensions could allow an unauthenticated attacker to execute arbitrary code with the privileges of the affected browser on an affected system. An input validation error vulnerability has been identified in the WebEx Extension for Chrome.
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)

ID: CVE-2016-7200
Title: Microsoft Edge Scripting Engine Memory Corruption Code Execution Vulnerability
Vendor: Microsoft
Description: The Chakra JavaScript scripting engine in Microsoft Edge allows 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-2016-7201, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.
CVSS v2 Base Score: 7.6 (AV:N/AC:H/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)

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-2016-6366
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-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)


MOST PREVALENT MALWARE FILES 2017-01-24 - 2017-01-31 COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: ae7327f36a659d01a85d4071a4570458ec03a05a6ce7d2f6d092fb46aff3e739
MD5: fa1f769475516b03881602d0824cae12
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: printerinstallerclientupdater.exe
Claimed Product: Printer Updater Client
Detection Name: W32.AE7327F36A-95.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: 2a3c6020418ba65020feffc50d30ad77aa6f87bb97e831f9d19585c5c0fbf439
MD5: 220a227048a34c7145aa3af9b29a39c5
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: mfon.zip
Claimed Product: Mac File Opener
Detection Name: W32.Auto.2a3c60.201455.in01

SHA 256: f9b8f7f285f811ee720cce7bccd98a421a26fb90dd7b022118d4b4e1f340036b
MD5: 0612402ad98c8c31cd6f2b914a419039
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: wingqvaqb.exe
Claimed Product: (none)
Detection Name: W32.F9B8F7F285-95.SBX.TG

SHA 256: d3dbe14033ad25a5e4ffe1e2b559e53ee1d1799eb54eedbd7a689d6a88fd7137
MD5: f4be84934734b03d7f11e22b4de7fd0a
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: Danielic
Claimed Product: (unknown)
Detection Name: OSX.MAC:Malwaregen.19hh.1201


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