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@RISK: The Consensus Security Vulnerability Alert
November 01, 2018 - Vol. 18, Num. 44

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

CONTENTS:

NOTABLE RECENT SECURITY ISSUES
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES October 26 - November 1, 2018
TOP VULNERABILITY THIS WEEK: Cisco NX-OS Software DoS vulnerabilities

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

Title: Multiple bugs in Cisco NX-OS software
Description: There are three vulnerabilities in the Cisco NX-OS software that could allow an attacker to carry out a denial-of-service attack on the victim machine. The bugs lie in the simple network management protocol (SNMP) input packet processor, precision time protocol (PTP) and link layer discovery protocol (LLDP).
Reference:

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-nxos-snmp
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-nexus-ptp-dos
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-fxnx-os-dos

Snort SIDs: 48239, 48240

Title: Sophos HitmanPro.Alert memory disclosure and code execution vulnerabilities
Description: Two vulnerabilities exist in Sophos HitmanPro.Alert, a malware detection and protection tool. Both vulnerabilities lie in the input/output control (IOCTL) message handler. One could allow an attacker to read kernel memory contents, while the other allows code execution and privilege escalation.
Reference: https://blog.talosintelligence.com/2018/10/vulnerability-spotlight-talos-2018.html
Snort SID: 47295, 47296

Title: MKVToolNix mkvinfo read_one_element RCE
Description: A vulnerability in the MKVToolNix mkvinfo utility that parses the Matroska file format video files (.mkv files) could allow an attacker to execute code on the victim’s machine in the context of the current user. It is possible to forge a .mkv file in a way that the vulnerable function frees an element so that another delete operation triggers a use-after-free vulnerability.
Reference: https://blog.talosintelligence.com/2018/10/vulnerability-spotlight-talos-2018-0694.html
Snort SID: 48213, 48214

INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Researchers at security firm FireEye say a Russian group is behind the Triton malware, which targeted a Saudi Arabian power plant last year.
https://www.fireeye.com/blog/threat-research/2018/10/triton-attribution-russian-government-owned-lab-most-likely-built-tools.html

Google plans to mandate that all Android phone manufacturers who produce 100,000 or more devices guarantee security updates for up to two years.
https://www.theverge.com/2018/10/24/18019356/android-security-update-mandate-google-contract

The U.S. launched its first offensive cyber operation against Russia, aimed at taking down social media troll farms leading up to the midterm elections.
https://www.nytimes.com/2018/10/23/us/politics/russian-hacking-usa-cyber-command.html

Security researchers continue to poke holes in Bloomberg’s bombshell story regarding potential microchips that could spy on U.S. networks.
https://www.servethehome.com/investigating-implausible-bloomberg-supermicro-stories/

China has been hacking BGP routes for years, according to a new report, and redirecting traffic overseas for nefarious reasons.
https://www.zdnet.com/article/china-has-been-hijacking-the-vital-internet-backbone-of-western-countries/

More than 5 percent of Amazon AWS buckets are inadvertently available to the public, according to new data from McAfee.
https://www.theregister.co.uk/2018/10/30/mcafee_cloud_security_terrible/

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-2018-10933
Title: libssh Authentication Bypass Vulnerability
Vendor: libssh
Description: A vulnerability was found in libssh’s server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.
CVSS v2 Base Score: 6.4 (AV:N/AC:L/Au:N/C:P/I:P/A:N)

ID: CVE-2018-11776
Title: Apache Struts 2 Namespace Remote Code Execution Vulnerability (S2-057)
Vendor: Apache Software Foundation
Description: Apache Struts versions 2.3 to 2.3.34 and 2.5 to 2.5.16 suffer from possible Remote Code Execution when using results with no namespace and in same time, its upper action(s) have no or wildcard namespace. Same possibility when using url tag which doesn’t have value and action set and in same time, its upper action(s) have no or wildcard namespace.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2018-2628
Title: Oracle Weblogic Deserialization Remote Code Execution Vulnerability
Vendor: Oracle
Description: Vulnerability in the Oracle WebLogic Server component of Oracle Fusion Middleware (subcomponent: WLS Core Components). Supported versions that are affected are 10.3.6.0, 12.1.3.0, 12.2.1.2 and 12.2.1.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server.
CVSS v2 Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)

ID: CVE-2018-8174
Title: Windows VBScript Engine Remote Code Execution Vulnerability
Vendor: Microsoft
Description: The VBScript engine contains a remote code execution vulnerability due to how it handles objects in memory. An attacker could execute arbitrary code in the context of the current user.
CVSS v2 Base Score: 7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)

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-2017-12636
Title: Apache CouchDB Remote Code Execution Vulnerability
Vendor: Apache Software Foundation
Description: CouchDB administrative users can configure the database server via HTTP(S). Some of the configuration options include paths for operating system-level binaries that are subsequently launched by CouchDB. This allows an admin user in Apache CouchDB before 1.7.0 and 2.x before 2.1.1 to execute arbitrary shell commands as the CouchDB user, including downloading and executing scripts from the public internet.
CVSS v2 Base Score: 9.0 (AV:N/AC:L/Au:S/C:C/I:C/A:C)

MOST PREVALENT MALWARE FILES October 26 - November 1, 2018
COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: 73d876ec3e9c2e459ed771873bd07bb81e56244f7ae395ec7f2368c2f29e9611
MD5: 68f811127c2e434d13652448bd225ab3
VirusTotal: https://www.virustotal.com/#/file/73d876ec3e9c2e459ed771873bd07bb81e56244f7ae395ec7f2368c2f29e9611/details
Typical Filename: maftask.zip
Claimed Product: N/A
Detection Name: OSX.73D876EC3E.agent.tht.Talos

SHA 256: 92f4daf523f803ea0131506dfe9d428088252dbaf6f9e868ca59354cebe8e789
MD5: da848a3abd3edb81e31f94066636b287
VirusTotal: https://www.virustotal.com/#/file/92f4daf523f803ea0131506dfe9d428088252dbaf6f9e868ca59354cebe8e789/details
Typical Filename: maftask.zip
Claimed Product: N/A
Detection Name: W32.Auto.92f4da.MASH.SR.SBX.VIOC

SHA 256: 8896a644e7bdc644688f655aae4ab6635656d8becee540eaaeeb6f54629d39a1
MD5: 351fcde024102003895193228eae50da
VirusTotal: https://www.virustotal.com/#/file/8896a644e7bdc644688f655aae4ab6635656d8becee540eaaeeb6f54629d39a1/details
Typical Filename: DriveMapper.exe
Claimed Product: N/A
Detection Name: Win.Dropper.Autoit::100.sbx.vioc

SHA 256: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f
MD5: e2ea315d9a83e7577053f52c974f6a5a
VirusTotal: https://www.virustotal.com/#/file/c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f/details
Typical Filename: Tempmf582901854.exe
Claimed Product: N/A
Detection Name: W32.AgentWDCR:Gen.21gn.1201

SHA 256: 85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5
MD5: 8c80dd97c37525927c1e549cb59bcbf3
VirusTotal: https://www.virustotal.com/#/file/85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5/details
Typical Filename: blue.exe
Claimed Product: N/A
Detection Name: W32.GenericKD:WNCryLdrA.21lx.1201