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@RISK Newsletter for April 30, 2015 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. 15, Num. 17

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 2015-04-21 - 2015-04-28


TOP VULNERABILITY THIS WEEK: WordPress XSS Zero-day Vulnerability

Disclosed and Patched


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

Title: WordPress XSS Zero-day Vulnerability Disclosed and Patched
Description: A cross-site scripting zero-day vulnerability within
WordPress has been disclosed. The issue is in the way comments larger
than 64kb are stored into the MySQL database, resulting in malformed
HTML. An unauthenticated attacker who leverages this vulnerability and
posts a malicious comment could conduct a cross-site scripting attack.
WordPress has released an updated version which patches this
vulnerability.
Reference: http://klikki.fi/adv/wordpress2.html
Snort SID: Detection pending

Title: Security Flaw within YubiKey NEO could allow bypass of PIN
Verification
Description: A defect within the YubiKey NEO firmware could potentially
allow an attacker to bypass PIN verification and perform security
operations. YubiKey firmware version 1.0.9 and below are affected by
the security flaw. Yubico is informing users that they do not see “any
immediate need for users to upgrade existing deployed products” because
“a successful attack requires other privileged operations (such as local
root access)”. Yubico is offering a free replacement key for users who
currently are in possession of a vulnerable one.
Reference: https://developers.yubico.com/ykneo-openpgp/SecurityAdvisory%202015-04-14.html


INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

Cisco Talos Reverse Engineers TeslaCrypt; Releases Decryption Tool
http://sfi.re/1JPxmXx

Mozilla to Remove Turkish CA From Firefox Trust Store
https://threatpost.com/mozilla-to-remove-turkish-ca-from-firefox-trust-store/112445

Social engineering tricks open the door to macro-malware attacks - how
can we close it?
http://blogs.technet.com/b/mmpc/archive/2015/04/28/social-engineering-tricks-open-the-door-to-macro-malware-attacks-how-can-we-close-it.aspx

Pwning a thin client in less than two minutes
http://blog.malerisch.net/2015/04/pwning-hp-thin-client.html

Damballa says Mobile malware is overhyped
http://www.computerweekly.com/news/4500244876/Mobile-malware-overhyped-says-security-company-Damballa


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-2014-0556
Title: Adobe Flash Player copyPixelsToByteArray Buffer Overflow
Vendor: Adobe
Description: Heap-based buffer overflow in Adobe Flash Player before
13.0.0.244 and 14.x and 15.x before 15.0.0.152 on Windows and OS X and
before 11.2.202.406 on Linux, Adobe AIR before 15.0.0.249 on Windows and
OS X and before 15.0.0.252 on Android, Adobe AIR SDK before 15.0.0.249,
and Adobe AIR SDK & Compiler before 15.0.0.249 allows attackers to
execute arbitrary code via unspecified vectors, a different
vulnerability than CVE-2014-0559.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2015-0313
Title: Adobe Flash Player Use-After-Free Vulnerability
Vendor: Adobe
Description: Use-after-free vulnerability in Adobe Flash Player before
13.0.0.269 and 14.x through 16.x before 16.0.0.305 on Windows and OS X
and before 11.2.202.442 on Linux allows remote attackers to execute
arbitrary code via unspecified vectors, as exploited in the wild in
February 2015, a different vulnerability than CVE-2015-0315,
CVE-2015-0320, and CVE-2015-0322.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2015-0318
Title: Adobe Flash Player Memory Corruption Vulnerability
Vendor: Adobe
Description: Adobe Flash Player before 13.0.0.269 and 14.x through 16.x
before 16.0.0.305 on Windows and OS X and before 11.2.202.442 on Linux
allows attackers to execute arbitrary code or cause a denial of service
(memory corruption) via unspecified vectors, a different vulnerability
than CVE-2015-0314, CVE-2015-0316, CVE-2015-0321, CVE-2015-0329, and
CVE-2015-0330.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2015-0235
Title: Exim GHOST (glibc gethostbyname) Buffer Overflow
Vendor: Exim.org
Description: Heap-based buffer overflow in the
__nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions
before 2.18, allows context-dependent attackers to execute arbitrary
code via vectors related to the (1) gethostbyname or (2) gethostbyname2
function, aka “GHOST.”
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2014-4114
Title: Microsoft Windows OLE - Remote Code Execution “Sandworm” Exploit
(MS14-060)
Vendor: Microsoft
Description: Microsoft Windows Vista SP2, Windows Server 2008 SP2 and
R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold
and R2, and Windows RT Gold and 8.1 allow remote attackers to execute
arbitrary code via a crafted OLE object in an Office document, as
exploited in the wild with a “Sandworm” attack in June through October
2014, aka “Windows OLE Remote Code Execution Vulnerability.”
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)

ID: CVE-2014-7169
Title: Multiple Vendor Bash Remote Code Execution Vulnerability
Vendor: Multiple Vendors
Description: GNU Bash through 4.3 bash43-025 processes trailing strings
after certain malformed function definitions in the values of
environment variables, which allows remote attackers to write to files
or possibly have unknown other impact via a crafted environment, as
demonstrated by vectors involving the ForceCommand feature in OpenSSH
sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server,
scripts executed by unspecified DHCP clients, and other situations in
which setting the environment occurs across a privilege boundary from
Bash execution. NOTE: this vulnerability exists because of an incomplete
fix for CVE-2014-6271.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2014-6271
Title: Multiple Vendor Bash Remote Code Execution Vulnerability
Vendor: Multiple Vendors
Description: GNU Bash through 4.3 processes trailing strings after
function definitions in the values of environment variables, which
allows remote attackers to execute arbitrary code via a crafted
environment, as demonstrated by vectors involving the ForceCommand
feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache
HTTP Server, scripts executed by unspecified DHCP clients, and other
situations in which setting the environment occurs across a privilege
boundary from Bash execution, aka “ShellShock.” NOTE: the original fix
for this issue was incorrect; CVE-2014-7169 has been assigned to cover
the vulnerability that is still present after the incorrect fix.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)


MOST PREVALENT MALWARE FILES 2015-04-21 - 2015-04-28 COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: B4F697039563BF0A6DF19E33A62C601B275FA869E5D80F610E8D74722B839554
MD5: c4dd3d60af182429d1262f5992e2dce1
VirusTotal:
https://www.virustotal.com/file/B4F697039563BF0A6DF19E33A62C601B275FA869E5D80F610E8D74722B839554/analysis/#additional-info
Typical Filename: newVrsn.exe
Claimed Product: Keep-My-Search LTD
Detection Name: W32.Variant:Gen.18fe.1201

SHA 256: EE3D776A5DA74C00FAD15A1B50E42C091CEC6A9A89C13428F9277C6007D4007F
MD5: a3730e445244791b37af42763603d87f
VirusTotal:
https://www.virustotal.com/file/EE3D776A5DA74C00FAD15A1B50E42C091CEC6A9A89C13428F9277C6007D4007F/analysis/#additional-info
Typical Filename: iKernel.dll
Claimed Product: InstallShield
Detection Name: W32.EE3D776A5D-100.SBX.VIOC

SHA 256: 55F173FB7CE33654D379663215DE48BD2F13CA4A607CBE4D90962DE33A4972E6
MD5: 1caf9472c70fb3567b85e1977a393720
VirusTotal:
https://www.virustotal.com/file/55F173FB7CE33654D379663215DE48BD2F13CA4A607CBE4D90962DE33A4972E6/analysis/#additional-info
Typical Filename: Runner.exe
Claimed Product: Search Protect
Detection Name: W32.SearchProtect.17nv.dk

SHA 256: BE240E7DE8DE2A103F7A1A18DEDF12F7C60787EF4C7B392EEFE669C252711C83
MD5: a05311fda9f9e8c99a7d68eba9a18400
VirusTotal:
https://www.virustotal.com/file/BE240E7DE8DE2A103F7A1A18DEDF12F7C60787EF4C7B392EEFE669C252711C83/analysis/#additional-info
Typical Filename: setup.exe
Detection Name: W32.BE240E7DE8-100.SBX.VIOC

SHA 256: DE6AA2E2EC2A593250AC56E8523FA280763510CE870552B76DD1673452BBF174
MD5: 62804e19dbcddd42fbd4fb4ac65f8f2b
VirusTotal:
https://www.virustotal.com/file/DE6AA2E2EC2A593250AC56E8523FA280763510CE870552B76DD1673452BBF174/analysis/#additional-info
Typical Filename: prompt.exe
Claimed Product: Prompt
Detection Name: W32.Trojan.18fq.1201


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