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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.

May 3, 2018

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     @RISK: The Consensus Security Vulnerability Alert

                    May 3, 2018 - Vol. 18, Num. 18


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


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CONTENTS:

NOTABLE RECENT SECURITY ISSUES

INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE

MOST PREVALENT MALWARE FILES April 25-May 2

============================================================


TOP VULNERABILITY THIS WEEK: Third major vulnerability found in Drupal


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TRAINING UPDATE


-- SANSFIRE 2018 | Washington, DC | July 14-21 | https://www.sans.org/event/sansfire-2018


-- SANS Melbourne 2018 | May 14-26 | https://www.sans.org/event/melbourne-2018


-- SANS Northern VA Reston Spring 2018 | May 20-25 | https://www.sans.org/event/northern-va-reston-spring-2018


-- SANS Amsterdam May 2018 | May 28-June 2 | https://www.sans.org/event/amsterdam-may-2018


-- SANS Rocky Mountain 2018 | Denver, CO | June 4-9 | https://www.sans.org/event/rocky-mountain-2018


-- SANS London June 2018 | June 4-12 | https://www.sans.org/event/london-june-2018


-- DFIR Summit & Training 2018 | Austin, TX | June 7-14 | https://www.sans.org/event/digital-forensics-summit-2018


-- Cloud Insecurity Summit - DC | Crystal City, VA | June 8 | https://www.sans.org/event/cloud-insecurity-summit-dc


-- Cloud Insecurity Summit - Austin | Austin, TX | June 11 | https://www.sans.org/event/cloud-insecurity-summit-tx


-- SANS Cyber Defence Canberra 2018 | June 25-July 7 | https://www.sans.org/event/cyber-defence-canberra-2018

 

-- SANS OnDemand and vLive Training | The SANS Training you want with the flexibility you need. Special Offer: Get an iPad, a Samsung Galaxy Tab A, or take $250 Off with OnDemand or vLive Training until May 16. https://www.sans.org/online-security-training/specials/


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-- View the full SANS course catalog and Cyber Security Skills Roadmap

https://www.sans.org/courses

https://www.sans.org/cyber-security-skills-roadmap


********************** Sponsored Links: ********************


1) Join SANS for the 2nd Annual Automotive Cybersecurity Summit, May 7-8, in Chicago. http://www.sans.org/info/203395


2) Don't Miss:  "5 Ways Bro Gives You Better Data for Incident Response and Threat Hunting"  Register: http://www.sans.org/info/203740


3) Learn about cyber deception and how to implement it. Register: http://www.sans.org/info/203745


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NOTABLE RECENT SECURITY ISSUES

SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP


Title: Another major vulnerability found in Drupal

Description: For the third time in the past 30 days, a major remote code execution vulnerability has been found in the Drupal open-source content management framework. The vulnerability, nicknamed Drupalgeddon3, could allow an attacker to completely compromise a site.

Reference:

https://www.imperva.com/blog/2018/04/just-third-critical-drupal-flaw-discovered/

https://www.drupal.org/sa-core-2018-004

Snort SID: Detection pending



Title: Hyland Perceptive Document Filters file conversion feature could lead to arbitrary code execution

Description: Multiple vulnerabilities in the Hyland Perceptive Document Filters were patched this week. The four vulnerabilities allow an attacker to execute arbitrary code, and exist in the file conversion feature.

Reference: https://blog.talosintelligence.com/2018/04/hyland-vulnerabilities-code-execution.html

Snort SID: 45689, 45690, 45717, 45718, 45750, 45751



Title: New 7-Zip version released

Description: A new update to the Microsoft Windows open-source archiving software 7-Zip was released this week, patching a number of flaws. The new version fixes a security vulnerability in the Rar unpacking code.

Reference:

https://sourceforge.net/p/sevenzip/discussion/45797/thread/adc65bfa/

https://landave.io/2018/05/7-zip-from-uninitialized-memory-to-remote-code-execution/

Snort SID: Detection pending


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INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY


Google has released a new security update, protecting all of their devices against the Meltdown attack, which targeted Intel chips.  https://www.securityweek.com/all-chrome-os-devices-now-protected-against-meltdown


U.S. lawmakers are pushing President Donald Trump to discuss the wave of cyber attacks seemingly coming from North Korea during Trump's expected with the country's leader, Kim Jong Un.

https://www.politico.com/newsletters/morning-cybersecurity/2018/04/30/talking-cyber-during-the-north-korean-nuclear-summit-196715


Attackers are using an exploit from the U.S. National Security Agency to load a miner onto users' machines that mines the Monero cryptocurrency.

https://www.fortinet.com/blog/threat-research/python-based-malware-uses-nsa-exploit-to-propagate-monero--xmr--.html


Security researchers were able to turn Amazon's Alexa smart speaker into a remote recording device. Amazon has since patched this exploit.

https://www.wired.com/story/amazon-echo-alexa-skill-spying/


Researchers from Cisco Talos have discovered a new RAT that is specifically targeting users in India. The malware has been consistently evolving over the past two years.

https://blog.talosintelligence.com/2018/04/gravityrat-two-year-evolution-of-apt.html


Hackers are scanning the web, attempting to find Oracle WebLogic Server installations that can be infiltrated using a recently disclosed vulnerability.

https://www.securityweek.com/hackers-target-poorly-patched-oracle-weblogic-flaw


=========================================================


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-2018-7600

Title:     Drupal Core Remote Code Execution Vulnerability (SA-CORE-2018-002)

Vendor: Drupal

Description: Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6, and 8.5.x before 8.5.1 allows remote attackers to execute arbitrary code because of an issue affecting multiple subsystems with default or common module configurations.

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


ID:     CVE-2018-0886

Title:     Microsoft Credential Security Support Provider Remote Code Execution Vulnerability

Vendor: Microsoft

Description: The Credential Security Support Provider protocol (CredSSP) in Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1 and RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, 1703, and 1709 Windows Server 2016 and Windows Server, version 1709 allows a remote code execution vulnerability due to how CredSSP validates request during the authentication process, aka "CredSSP Remote Code Execution Vulnerability".

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


ID:     CVE-2018-4878

Title:     Adobe Flash Player Remote Code Execution Vulnerability (APSA18-01)

Vendor: Adobe

Description: A critical vulnerability exists in Adobe Flash Player 28.0.0.137 and earlier versions. Successful exploitation could potentially allow an attacker to take control of the affected system. Adobe is aware of a report that an exploit for CVE-2018-4878 exists in the wild and is being used in targeted attacks.

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


ID:     CVE-2017-10271

Title:     Oracle WebLogic WLS Security Component Remote Code Execution

Vendor: Oracle

Description: Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Security). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.1.0 and 12.2.1.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server.

CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P)


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-2017-0145

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-2017-5638

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 2.5.10.1 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)


=========================================================


MOST PREVALENT MALWARE FILES April 25-May 2

:

COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP


SHA 256: dcd8dd9faf40dc9bdab70027811292196cd7c747475157ea39e176ada3456a85

MD5: 0878011dffca72620846828312de59bd

VirusTotal: https://www.virustotal.com/#/file/dcd8dd9faf40dc9bdab70027811292196cd7c747475157ea39e176ada3456a85/details

Typical Filename: 0878011dffca72620846828312de59bd

Claimed Product: N/A

Detection Name: JAR.DCD8DD9FAF.malicious.tht.Talos


SHA 256: bb5ca947a9ed44d46e2845bdc3eac1bd368577aa40a8dcd1fae29b8da5b0253e

MD5: 9ff32613fc850c9937257665ec051e69

VirusTotal: https://www.virustotal.com/#/file/bb5ca947a9ed44d46e2845bdc3eac1bd368577aa40a8dcd1fae29b8da5b0253e/details

Typical Filename: helperamc.zip

Claimed Product: Advanced Mac Cleaner

Detection Name: PUA.Osx.Dropper.Gt32supportgeeks.in03.talos


SHA 256: be904d34fdc803c60df5ddde64016e3ab1bd331d2875b863c6085acc24557394

MD5: 15a05c3741d7374cdf8a2dc20c58c3cf

VirusTotal: https://www.virustotal.com/#/file/be904d34fdc803c60df5ddde64016e3ab1bd331d2875b863c6085acc24557394/details

Typical Filename: ipts.exe

Claimed Product: Traffic Spirit

Detection Name: W32.Variant:Gen.21fo.1201


SHA 256: 15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b

MD5: 799b30f47060ca05d80ece53866e01cc

VirusTotal: https://www.virustotal.com/#/file/15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b/details

Typical Filename: mf2016341595.exe

Claimed Product: N/A

Detection Name: W32.Generic:Gen.21fu.1201


SHA 256: bce9ad68be9bdf3791c5e7b5c9c7e3e3bbfeac13456b19b5c723ba3c2c76ed36

MD5: bbf57526c13a2bc620601e8a37a4a97d

VirusTotal: https://www.virustotal.com/#/file/bce9ad68be9bdf3791c5e7b5c9c7e3e3bbfeac13456b19b5c723ba3c2c76ed36/details

Typical Filename: DOC001.exe

Claimed Product: GBH International Contracting LLC

Detection Name: Simple_Custom_Detection


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