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@RISK Newsletter for March 09, 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. 10

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 2017-02-28 - 2017-03-07


TOP VULNERABILITY THIS WEEK: Android Releases Monthly Security Bulletin for March 2017


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

Title: Android Releases Monthly Security Bulletin for March 2017
Description: Android has released its monthly security bulletin to address various security vulnerabilities that have been identified. This latest release fixes 107 vulnerabilities with 35 of them rated critical, 47 rated high, and 25 rated moderate or low. The most severe vulnerabilities are arbitrary code execution flaws in Mediaserver, MediaTek components, and the NVIDIA GPU driver. All vulnerabilities have been patched with Android partners notified of these flaws.
Reference: https://source.android.com/security/bulletin/2017-03-01.html
Snort SID: Detection pending release of vulnerability information

Title: Cisco Releases Security Advisory for SCTP Decoder Flaw in NetFlow Generation Appliances
Description: Cisco has released a security advisory to address a vulnerability in the Stream Control Transmission Protocol (SCTP) decoder for its NetFlow Generation Appliances. The flaw (CVE-2017-3826) manifests due to incomplete validation of SCTP packets and could cause the device to hang or reload unexpected, creating a denial-of-service condition. Cisco has released software updates to address this flaw.
Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170301-nga
Snort SID: 41786

Title: Western Digital MyCloud NAS Devices Found to Contain Numerous Vulnerabilities
Description: Researchers have found that Western Digital MyCloud NAS devices contain numerous vulnerabilities that could be remotely exploited. One of the vulnerabilities disclosed is a login bypass vulnerability which could allow a remote attacker to login to these devices as an administrator. In addition to the login bypass flaw, many authenticated and unauthenticated remote command execution bugs have also been identified that allow a remote attacker to execute commands on the device as root (note that with the login bypass vulnerability, it’s possible for all the authenticated remote command execution flaws to be exploited). These vulnerabilities are considered zero-day vulnerabilities. Users and administrators should exercise caution and ensure these devices are NOT publically accessible.
Reference: https://blog.exploitee.rs/2017/hacking_wd_mycloud/
Snort SID: Detection pending


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Covert Channels and Poor Decisions: The Tale of DNSMessenger
http://blog.talosintelligence.com/2017/03/dnsmessenger.html?f_s=s

Keys for Dharma Ransomware Released
https://threatpost.com/keys-for-dharma-ransomware-released/124024/

ReBreakCaptcha: Breaking Google’s ReCaptcha v2 using… Google
https://east-ee.com/2017/02/28/rebreakcaptcha-breaking-googles-recaptcha-v2-using-google/

Ok Google, Give Me All Your Internal DNS Information!
https://www.rcesecurity.com/2017/03/ok-google-give-me-all-your-internal-dns-information/

Hacking Slack using postMessage and WebSocket-reconnect to steal your precious token
https://labs.detectify.com/2017/02/28/hacking-slack-using-postmessage-and-websocket-reconnect-to-steal-your-precious-token/


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.


MOST PREVALENT MALWARE FILES 2017-02-28 - 2017-03-07 COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

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

SHA 256: 88d90d8780ceb35d9d736245aeb933d96e0bc46c0cf86c0986d478987e5b99d2
MD5: 5d3b4ccd6644c44bb5df8af14f189f59
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: SurfBuyer
Claimed Product: SurfBuyer
Detection Name: OSX.MAC.20cv.1201

SHA 256: 24a4cffbe3b0c9394fa95cd2e8437210cd00b940f29884265134d0b53387e4c9
MD5: 335889e42e25203c77e9553e3987b6ae
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: helperamc.zip
Claimed Product: Advanced Mac Cleaner
Detection Name: W32.Trojan.NM

SHA 256: f9f14b3572a947348a31d0198377f0fa4a78697e334c37aea80d08cf5eb2488c
MD5: 2497ed1df104e0f86be1d4308f4bc0d7
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: ns.fatt.e-dettaglio delle transazioni.doc
Claimed Product: N/A
Detection Name: W32.F9F14B3572-100.SBX.TG

SHA 256: aa44a8dd4563c03ac65650622cb3af81f52e8ea2e1df663f68e0061b8bcac3ce
MD5: 8dbdb1775921915dd66c68d430114e6f
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: windofd.exe
Claimed Product: (none)
Detection Name: W32.Auto:aa44a8.in03.Talos


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