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@RISK provides a reliable weekly summary of (1) newly discovered attack vectors, (2) vulnerabilities with active new exploits, (3) insightful explanations of how recent attacks worked, and other valuable data

A key purpose of the @RISK is to provide the data that will ensure that the 20 Critical Controls (the US and UK benchmark for effective protection of networked systems) continue to be the most effective defenses for all known attack vectors. But since it is also valuable for security practitioners, SANS is making it available to the 145,000 security practitioners who have completed SANS security training and others at their organizations who hope to stay current with the offensive methods in use.

December 7, 2017


     @RISK: The Consensus Security Vulnerability Alert

                    December 07, 2017 - Vol. 17, Num. 49

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 http://www.sans.org/newsletters/at-risk






MOST PREVALENT MALWARE FILES 2017-11-28 - 2017-12-05


TOP VULNERABILITY THIS WEEK: Google Releases Monthly Security Bulletin for Android

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Title: Google Releases Monthly Security Bulletin for Android

Description: Google has released its monthly security bulletin for vulnerabilities identified in Android and Android components. This month's release is split into 2 patches levels, 2017-12-01 and 2017-12-05. The 2017-12-01 patch level addresses 19 vulnerabilities with 6 rated critical and 13 rated high severity. The 2017-12-05 patch level addresses 28 vulnerabilities with 4 rated critical and 24 rated high severity. Updates for Nexus and Pixel devices have been released. Android partners have also been notified of these vulnerabilitites and should have forthcoming updates.

Reference: https://source.android.com/security/bulletin/2017-12-01

Snort SID: Detection pending release of vulnerability information

Title: Cisco Released Security Advisory for Vulnerabilities Identified in WebEx Recording Format and Advanced Recording Format Players

Description: Cisco has released a security advisory for vulnerabilities that have been identified in WebEx Recording Format and Advanced Recording Format Players. These vulnerabilities manifest in the way Cisco WebEx handles ARF and WRF playback files. Exploitation of these vulnerabilities could be achieved if a user opens a malicious ARF or WRF file they receive in an email or click on a URL that causes the user to navigate to a malicious ARF or WRF file. Cisco has released a software update addressing these vulnerabilities.

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-webex-players

Title: TeamViewer Releases Update to Address Permissions Bug

Description: TeamViewer has released a security update following reports that a bug in the way permissions are handled was reported. The bug potentially allows users sharing a desktop session to gain control of the other person's computer without permission.

Reference: https://threatpost.com/teamviewer-rushes-fix-for-permissions-bug/129096/



Mailsploit: a collection of bugs in email clients that allow effective sender spoofing and code injection attacks


Why <blank> Gets You Root (on macOS High Sierra)


Flaw Found in Dirty COW Patch


Microsoft teams up with law enforcement and other partners to disrupt Gamarue (Andromeda)


Virtual Keyboard Developer Leaked 31 Million of Client Records






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


ID:     CVE-2017-8759

Title:     Microsoft .NET Framework Remote Code Execution Vulnerability

Vendor: Microsoft

Description: A remote code execution vulnerability exists when Microsoft .NET Framework processes untrusted input. Microsoft is aware of a report that an exploit for CVE-2017-8759 exists in the wild and is being used in targeted attacks.

Microsoft published a .NET security update to address this issue.

CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID:     CVE-2017-9805

Title:     Apache Struts REST plugin Remote Code Execution (S2-052)

Vendor: Apache Struts

Description: The REST Plugin is using a XStreamHandler with an instance of XStream for deserialization without any type filtering and this can lead to Remote Code Execution when deserializing XML payloads.

CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID:     CVE-2017-0037

Title:     Microsoft Internet Explorer Remote Code Execution (MS17-007)

Vendor: Microsoft

Description: Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and crafted JavaScript code that operates on a TH element.

CVSS v2 Base Score: 7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)

ID:     CVE-2017-0145

Title:     Microsoft Windows SMB Remote Code Execution Vulnerability

Vendor: Microsoft

Description: The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0146, and CVE-2017-0148.

CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID:     CVE-2017-0290

Title:     Microsoft Malware Protection Engine Remote Code Execution Vulnerability

Vendor: Microsoft

Description: NScript in mpengine in Microsoft Malware Protection Engine with Engine Version before 1.1.13704.0, as used in Windows Defender and other products, allows remote attackers to execute arbitrary code or cause a denial of service (type confusion and application crash) via crafted JavaScript code within any file scanned by this engine.  

CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID:     CVE-2017-3881

Title:     Cisco IOS and IOS XE Software Cluster Management Protocol Remote Code Execution Vulnerability

Vendor: Cisco

Description: A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges. The Cluster Management Protocol utilizes Telnet internally as a signaling and command protocol between cluster members. The vulnerability is due to the combination of two factors: (1) the failure to restrict the use of CMP-specific Telnet options only to internal, local communications between cluster members and instead accept and process such options over any Telnet connection to an affected device; and (2) the incorrect processing of malformed CMP-specific Telnet options. An attacker could exploit this vulnerability by sending malformed CMP-specific Telnet options while establishing a Telnet session with an affected Cisco device configured to accept Telnet connections. An exploit could allow an attacker to execute arbitrary code and obtain full control of the device or cause a reload of the affected device. This affects Catalyst switches, Embedded Service 2020 switches, Enhanced Layer 2 EtherSwitch Service Module, Enhanced Layer 2/3 EtherSwitch Service Module, Gigabit Ethernet Switch Module (CGESM) for HP, IE Industrial Ethernet switches, ME 4924-10GE switch, RF Gateway 10, and SM-X Layer 2/3 EtherSwitch Service Module. Cisco Bug IDs: CSCvd48893.

CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID:     CVE-2017-5638

Title:     Apache Struts2 Input Validation Code Execution Vulnerability

Vendor: Apache

Description: The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before mishandles file upload, which allows remote attackers to execute arbitrary commands via a #cmd= string in a crafted Content-Type HTTP header, as exploited in the wild in March 2017.

CVSS v2 Base Score: 10.0 (AV:N/AC:L/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)


MOST PREVALENT MALWARE FILES 2017-11-28 - 2017-12-05



SHA 256: 99550ea419a3f49ee1154c9d5ae99b7f925a783028f87286584a0c9fe7bab4f0

MD5: 5bafb135e1d7ba0a5acd0fbbeb2a93e1

VirusTotal: https://www.virustotal.com/file/99550ea419a3f49ee1154c9d5ae99b7f925a783028f87286584a0c9fe7bab4f0/analysis/#additional-info

Typical Filename: helperamc.zip

Claimed Product: Advanced Mac Cleaner

Detection Name: W32.99550EA419-95.SBX.TG

SHA 256: 7ceaa325d27f178732b0fecceee3a2eda1de7f49970424d39ebdde93c077aa0f

MD5: 8a0a9252ba0f7d46e7b02337ebdad2be

VirusTotal: https://www.virustotal.com/file/7ceaa325d27f178732b0fecceee3a2eda1de7f49970424d39ebdde93c077aa0f/analysis/#additional-info

Typical Filename: PCMHelper_u.rar

Claimed Product: (unknown)

Detection Name: W32.7CEAA325D2-100.SBX.VIOC

SHA 256: 15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b

MD5: 799b30f47060ca05d80ece53866e01cc

VirusTotal: https://www.virustotal.com/file/15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b/analysis/#additional-info

Typical Filename: mf2016341595.exe

Claimed Product: (none)

Detection Name: W32.Generic:Gen.20l1.1201

SHA 256: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f

MD5: e2ea315d9a83e7577053f52c974f6a5a

VirusTotal: https://www.virustotal.com/file/c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f/analysis/#additional-info

Typical Filename: Tempmf582901854.exe

Claimed Product: (none)

Detection Name: W32.C3E530CC00-95.SBX.TG

SHA 256: f13b0f7d69c4d12d8b441b42567399bc5a7eaa5bb39065f3142d064ec5df2b44

MD5: 4b830e125aeffef43f82fbc08bb42e01

VirusTotal: https://www.virustotal.com/file/f13b0f7d69c4d12d8b441b42567399bc5a7eaa5bb39065f3142d064ec5df2b44/analysis/#additional-info

Typical Filename: Scan_261742.7z

Claimed Product: N/A

Detection Name: W32.Auto:f13b0f7d69.in05.Talos


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