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@RISK Newsletter for December 01, 2016 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. 16, Num. 48

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 2016-11-22 - 2016-11-29


TOP VULNERABILITY THIS WEEK: Mirai Variant Targets Modems Used By Deutsche Telekom Customers


NOTABLE RECENT SECURITY ISSUES

SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

Title: Mirai Variant Targets Modems Used By Deutsche Telekom Customers
Description: Researchers have been observing what appears to be a Mirai botnet variant targeting Deutsche Telekom customers who use a certain DSL modem. The attacks appear to be exploiting a bug in the implementation of the TR-069 standard resulting in modems “hanging”, creating a denial of service for customers who are affected. Deutsche Telekom has developed a patch for the bug that is being exploited and is currently in the process of rolling it out.
Reference: https://isc.sans.edu/forums/diary/TR069+NewNTPServer+Exploits+What+we+know+so+far/21763/
Snort SID: 40519-40523,40597-40601,40612

Title: Researcher Identifies Bug in Paypal’s OAuth Implementation
Description: A researcher has identified a bug in Paypal’s OAuth implementation that could have resulted in tokens leaking. The flaw in questions manifests in the token request and acquisition process where the Paypal Authorization Server was also accepting localhost as a redirect_uri. The flaw in question has been fixed by Paypal.
Reference: http://blog.intothesymmetry.com/2016/11/all-your-paypal-tokens-belong-to-me.html


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Abusing of Protocols to Load Local Files, bypass the HTML5 Sandbox, Open Popups and more
https://www.brokenbrowser.com/abusing-of-protocols/

CyberChef - A web app for encryption, encoding, compression and data analysis
https://github.com/gchq/CyberChef/

Cerber Spam: Tor All the Things!
http://blog.talosintel.com/2016/11/cerber-spam-tor.html

San Francisco Rail System Hacker Hacked
https://krebsonsecurity.com/2016/11/san-francisco-rail-system-hacker-hacked/

Uber Portal Leaked Names, Phone Numbers, Email Addresses, Unique Identifiers
https://threatpost.com/uber-portal-leaked-names-phone-numbers-email-addresses-unique-identifiers/122128/

InPage zero-day exploit used to attack financial institutions in Asia
https://securelist.com/blog/research/76717/inpage-zero-day-exploit-used-to-attack-financial-institutions-in-asia/


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-2016-5195
Title: Linux Kernel “MAP_PRIVATE COW” Privilege Escalation Vulnerability
Vendor: Kernel.Org
Description: A race condition vulnerability has been identified in the Linux Kernel. The Linux Kernel’s memory subsystem does not properly handle copy-on-write(COW) breakage of private read-only memory mappings. The vulnerability has been identified as “Dirty Cow.”
CVSS v2 Base Score: 6.6 (AV:L/AC:M/Au:S/C:C/I:C/A:C)

ID: CVE-2016-0752
Title: Ruby on Rails Input Validation Remote Code Execution Vulnerability
Vendor: rubyonrails.org
Description: Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x and 4.1.x before 4.1.14.1, 4.2.x before 4.2.5.1, and 5.x before 5.0.0.beta1.1 allows remote attackers to read arbitrary files by leveraging an application’s unrestricted use of the render method and providing a .. (dot dot) in a pathname.
CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N)

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)

ID: CVE-2015-2866
Title: Grandsteam GXV3611_HD camera SQL injection Vulnerability
Vendor: Grandstream Networks
Description: SQL injection vulnerability on the Grandstream GXV3611_HD camera with firmware before 1.0.3.9 beta allows remote attackers to execute arbitrary SQL commands by attempting to establish a TELNET session with a crafted username.
CVSS v2 Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)

ID: CVE-2016-1017
Title: Adobe Flash Player “AS2 LoadVars” Use-after-free Code Execution Vulnerability (APSA16-10)
Vendor: Adobe
Description: Use-after-free vulnerability in the LoadVars.decode function in Adobe Flash Player before 18.0.0.343 and 19.x through 21.x before 21.0.0.213 on Windows and OS X and before 11.2.202.616 on Linux allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-1011, CVE-2016-1013, CVE-2016-1016, and CVE-2016-1031.
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)

ID: CVE-2016-0189
Title: Microsoft Internet Explorer Scripting Engine Memory Corruption Vulnerability
Vendor: Microsoft
Description: The Microsoft (1) JScript 5.8 and (2) VBScript 5.7 and 5.8 engines, as used in Internet Explorer 9 through 11 and other products, allow 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-2016-0187.
CVSS v2 Base Score: 7.6 (AV:N/AC:H/Au:N/C:C/I:C/A:C)

ID: CVE-2016-1287
Title: Cisco ASA Software IKEv1 and IKEv2 Buffer Overflow Vulnerability
Vendor: Cisco
Description: Buffer overflow in the IKEv1 and IKEv2 implementations in Cisco ASA Software before 8.4(7.30), 8.7 before 8.7(1.18), 9.0 before 9.0(4.38), 9.1 before 9.1(7), 9.2 before 9.2(4.5), 9.3 before 9.3(3.7), 9.4 before 9.4(2.4), and 9.5 before 9.5(2.2) on ASA 5500 devices, ASA 5500-X devices, ASA Services Module for Cisco Catalyst 6500 and Cisco 7600 devices, ASA 1000V devices, Adaptive Security Virtual Appliance (aka ASAv), Firepower 9300 ASA Security Module, and ISA 3000 devices allows remote attackers to execute arbitrary code or cause a denial of service (device reload) via crafted UDP packets, aka Bug IDs CSCux29978 and CSCux42019.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)


MOST PREVALENT MALWARE FILES 2016-11-22 - 2016-11-29:

COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: ae7327f36a659d01a85d4071a4570458ec03a05a6ce7d2f6d092fb46aff3e739
MD5: fa1f769475516b03881602d0824cae12
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: PrinterInstallerClientUpdater.exe
Claimed Product: Printer Logic Client Updater
Detection Name: W32.AE7327F36A-95.SBX.TG

SHA 256: aa2e15ad8957705b3f6116f7eb0e9ad2bc88ad607ef5adde4f34297d3be91d17
MD5: 2f2d83a6f2aabfe9e7fd93545ff3fc92
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: Michael_Harney_Resignation.xls
Claimed Product: N/A
Detection Name: W32.AA2E15AD89-100.SBX.TG

SHA 256: 1ec604fddc790c1201e9e2f545083d031ad39daba164175f623e41536aec50c6
MD5: bab3f4078f4642bb9bf9cca74f992b19
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: helperamc
Claimed Product: Advanced Mac Cleaner
Detection Name: OSX.Variant.19lv.1201

SHA 256: a1cf9698dc5d818e442868938aa11b9f8c78b1e5fc680f4d4e26c7cb5965a5d9
MD5: 0ffd7c95519e9006cffe2084e72101a8
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: FedEx.doc
Claimed Product: N/A
Detection Name: W32.A1CF9698DC-100.SBX.TG

SHA 256: bcbe3da40fb46c6ae214a3e2b07ffeea422c9e8a937ed3caab5ac36cc0b61ba5
MD5: cfaead6efec6ed5d50bd6033a1cc6442
VirusTotal: Additional information from antivirus scan analysis
Typical Filename: Fedex.doc
Claimed Product: N/A
Detection Name: W32.BCBE3DA40F-100.SBX.TG


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