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@RISK Newsletter for April 20, 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. 16

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 2017-04-11 - 2017-04-18


TOP VULNERABILITY THIS WEEK: VMware Releases Security Advisories for Various Critical Vulnerabilities in vCenter, Workstation, and more


NOTABLE RECENT SECURITY ISSUES

SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

Title: VMware Releases Security Advisories for Various Critical Vulnerabilities in vCenter, Workstation, and more
Description: VMware has releases two security advisories addressing eight vulnerabilities across vCenter Server, Unified Access Gateway, Horizon View, and Workstation. The first advisory details CVE-2017-5641, a remote code execution flaw in vCenter Server manifesting via BlazeDS. The second advisory addresses a vulnerability in Unified Access Gateway and Horizon View that could allow an attacker to execute code on the security gateway. The second advisory also addresses various flaws in Cortado ThinPrint that could allow a guest to execute code or perform a denial of service attack on the host operating system. VMware has released software updates that address these vulnerabilities.
Reference: - http://www.vmware.com/security/advisories/VMSA-2017-0007.html

Snort SID: Detection pending release of vulnerability information

Title: Shadow Brokers Release Tools, Exploits For Compromising Windows-based Systems
Description: The Shadow Brokers have released a new bunch of information detailing various tools and exploits that target Windows-based hosts. Preliminary analysis of the exploits by members of the information security community suggested that some of the exploits released were zero-day vulnerabilities. However, Microsoft has published a blog post stating that most of the exploits were previously patched or were unable to be reproduced on currently supported platforms.
Reference: - https://blogs.technet.microsoft.com/msrc/2017/04/14/protecting-customers-and-evaluating-risk/

Snort SID: 14782, 14783, 14896, 15015, 15930, 26643, 41978, 42110, 42255, 42256


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

The Line of Death
https://textslashplain.com/2017/01/14/the-line-of-death/

Google Infrastructure Security Design Overview
https://cloud.google.com/security/security-design/

Buggy Domain Validation Forces GoDaddy to Revoke Certs
https://threatpost.com/buggy-domain-validation-forces-godaddy-to-revoke-certs/123038/

Facebook ImageTragick Story
http://4lemon.ru/2017-01-17_facebook_imagetragick_remote_code_execution.html

Hardening Windows 10 with zero-day exploit mitigations
https://blogs.technet.microsoft.com/mmpc/2017/01/13/hardening-windows-10-with-zero-day-exploit-mitigations/

Practical Android Debugging Via KGDB
http://blog.trendmicro.com/trendlabs-security-intelligence/practical-android-debugging-via-kgdb/


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-2017-3881
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-2017-7269
Title: Microsoft IIS 6.0 ScStoragePathFromUrl Buffer Overflow Vulnerability
Vendor: Microsoft
Description: Buffer overflow in the ScStoragePathFromUrl function in the WebDAV service in Internet Information Services (IIS) 6.0 in Microsoft Windows Server 2003 R2 allows remote attackers to execute arbitrary code via a long header beginning with “If:
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)

ID: CVE-2017-3823
Title: Cisco WebEx Google Chrome Extension Remote Code Execution Vulnerability
Vendor: Cisco
Description: An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control plugin before 10031.6.2017.0126 on Internet Explorer, and the Download Manager ActiveX control plugin before 2.1.0.10 on Internet Explorer. A vulnerability in these Cisco WebEx browser extensions could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server and Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center) when they are running on Microsoft Windows. The vulnerability is a design defect in an application programing interface (API) response parser within the extension. An attacker that can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser.
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-2016-6366
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)


MOST PREVALENT MALWARE FILES 2017-04-11 - 2017-04-18:

COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: f21d822e8f594ae012e0d2d84c5ff4c1f202ffd554b0670da353666a2a7c8375
MD5: 59cfe1eabc0d9db8ded212e38651bb44
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: 908711.zip
Claimed Product: N/A
Detection Name: W32.Auto:f21d822e8f.in05.Talos

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: c19fd401e01738676c11c84c5c3d4c0d33761d2bdd5babbb499696b6a24c10e4
MD5: 42f4132977a5f70289059e4935ac3f0c
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: CynetEPS.exe
Claimed Product: Cynet Scaner
Detection Name: W32.Ransom:Gen.20fl.1201

SHA 256: 061cbc0bd6409cb7e385f1a67a8b169a211fb96aff3f7ec15087ef0a2b8ccdd3
MD5: c3b143c829de9d65c0b7151cdf495209
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: helperamc.zip
Claimed Product: Advanced Mac Cleaner
Detection Name: Application:ADWARE-tpd

SHA 256: 412a91348fc21d9c00168fa10d77918e9b60c4ec9dfc104b196f8b6efa609425
MD5: 7738172db423727bed135e9fba1d6ec9
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: USAA Review Document.pdf
Claimed Product: N/A
Detection Name: PDF.412A91348F.Phishing.EE.e01.Talos


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