@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
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July 27, 2017=============================================================
@RISK: The Consensus Security Vulnerability Alert
Vol. 17, Num. 30
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 2017-07-18 - 2017-07-25
============================================================TOP VULNERABILITY THIS WEEK: Apple Releases Security Updates Across Product Portfolio
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============================================================TRAINING UPDATE
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============================================================NOTABLE RECENT SECURITY ISSUES SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: Apple Releases Security Updates Across Product Portfolio Description: Apple has releases security updates targeting various devices in its product portfolio such as iOS, macOS, tvOS, Safari, and more. This latest update addresses the "BroadPwn" bug where Broadcom Wi-fi chipsets contained a remote code execution vulnerability on affected devices. In addition, thirteen other arbitrary code execution vulnerabilities were also addressed. Reference: https://support.apple.com/en-us/HT201222 Snort SID: Detection pending release of vulnerability information
============================================================INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
Senator Calls For Use Of DMARC To Curb Phishing https://threatpost.com/senator-calls-for-use-of-dmarc-to-curb-phishing/126931/
Adobe to Stop Supporting Flash Player in 2020 https://blogs.adobe.com/conversations/2017/07/adobe-flash-update.html
Remote Code Execution Bug Found in Valve's Source SDK; Affects Games https://oneupsecurity.com/research/remote-code-execution-in-source-games?
EnglishmansDentist Exploit (from Apr 2017 Shadow Brokers Leak) Analysis https://blogs.technet.microsoft.com/srd/2017/07/20/englishmansdentist-exploit-analysis/
How a Citadel Trojan Developer Got Busted https://krebsonsecurity.com/2017/07/how-a-citadel-trojan-developer-got-busted/?
=========================================================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-2017-0145 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-2017-7269 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: http://" in a PROPFIND request, as exploited in the wild in July or August 2016. 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)
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-2016-7892 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 2017-07-18 - 2017-07-25: COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
SHA 256: fcb8aa4fa0c109b5be0f8f6336911ce5100cc7187a1ef8b196440d3037844623 MD5: 6c055dc3d5d000bebf6cacfdbc2ab876 VirusTotal: https://www.virustotal.com/file/fcb8aa4fa0c109b5be0f8f6336911ce5100cc7187a1ef8b196440d3037844623/analysis/#additional-info Typical Filename: Xzone-1414316145769-.apk Claimed Product: MySmsReceiver Detection Name: Android-tpd
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: bfccc82aee390efca9b3f2efbe7c446b1fe91ffd1d93457f935cba24922c3467 MD5: 3d94d045d33977b7d86dd77600f27bdb VirusTotal: https://www.virustotal.com/file/bfccc82aee390efca9b3f2efbe7c446b1fe91ffd1d93457f935cba24922c3467/analysis/#additional-info Typical Filename: PPLR507046.doc Claimed Product: N/A Detection Name: W32.BFCCC82AEE-100.SBX.TG
SHA 256: 0b400fa86c592d6c4fa1bca00ffb4740fe38e7ae5595c344d7bb17299291de7a MD5: 4bcceebef727b271e745708b4dd580ab VirusTotal: https://www.virustotal.com/file/0b400fa86c592d6c4fa1bca00ffb4740fe38e7ae5595c344d7bb17299291de7a/analysis/#additional-info Typical Filename: UPS_Notice_274710.doc Claimed Product: N/A Detection Name: W32.0B400FA86C-100.SBX.TG
SHA 256: d3dbe14033ad25a5e4ffe1e2b559e53ee1d1799eb54eedbd7a689d6a88fd7137 MD5: f4be84934734b03d7f11e22b4de7fd0a VirusTotal: https://www.virustotal.com/file/d3dbe14033ad25a5e4ffe1e2b559e53ee1d1799eb54eedbd7a689d6a88fd7137/analysis/#additional-info Typical Filename: Danielic Claimed Product: Pirrit Detection Name: OSX.MAC:Malwaregen.19hh.1201
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