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@RISK Newsletter for May 30, 2013 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. 13, Num. 22

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
USEFUL EXPLANATIONS OF HOW NEW ATTACKS WORK
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES 5/23/2013 - 5/28/2013


framework has had a pair of vulnerabilities disclosed that allow for
trivial code execution through a web browser. While some reports have
stated that the released patch is insufficient protection,
administrators should nonetheless apply it immediately, and look for
signs of compromise on potentially vulnerable systems, as it is presumed
to be exploited in the wild at this point in time.


NOTABLE RECENT SECURITY ISSUES SELECTED BY THE SOURCEFIRE VULNERABILITY RESEARCH TEAM

Title: Apache Struts bugs allow for trivial remote code execution
Description: A pair of recently released vulnerabilities for the popular
Apache Struts framework were released this week, allowing for trivial
remote code execution. As the issue can be triggered with a simple web
browser-based requests, administrators should assume that exploitation
is occurring in the wild already. Patches should be applied as soon as
possible, though other counter-measures should be employed where
feasible, as some reports have stated that the issue is not properly
fixed by the official patch.
Reference:
http://d2sec.com/news/apache_struts_2_rce_not_really_patched.html
http://struts.apache.org/development/2.x/docs/s2-014.html
https://cwiki.apache.org/confluence/display/WW/S2-013
Snort SID: 26772
ClamAV: N/A

Title: Ruby on Rails exploited in the wild
Description: The remote code execution in Ruby on Rails that caused a
stir in the security community earlier this year is now being used in a
large-scale, in-the-wild exploitation campaign. The vulnerability - for
which patches have been available for months - is likely to be hit for
the foreseeable future, given the huge installed vulnerable user base.
Administrators should check their systems as soon as feasible.
Reference:
http://jarmoc.com/blog/2013/05/28/ror-cve-2013-0156-in-the-wild/
Snort SID: 25287, 25288
ClamAV: N/A

Title: Paypal XSS publicly disclosed after bug bounty turns away
17-year-old
Description: German security researcher Robert Kugler, a 17-year-old
student, attempted to warn PayPal of a serious cross-site scripting
vulnerability recently through their bug bounty program, but was turned
away due to being under 18 years of age. Kugler - who has received
payouts from Mozilla bug bounty programs, and who was acknowledged in a
recent Microsoft advisory, took to the Full-Disclosure mailing list and
provided full details of the attack after being turned away by PayPal.
At the time of writing, the vulnerability appears to still be unpatched.
Reference:
http://seclists.org/fulldisclosure/2013/May/163
Snort SID: 7070
ClamAV: N/A


USEFUL EXPLANATIONS OF HOW NEW ATTACKS WORK

Dissecting Blackberry 10: An initial analysis:
http://packetstormsecurity.com/files/121743

Identify backdoors in firmware by using automatic string analysis:
http://blog.ioactive.com/2013/05/identify-back-doors-in-firmware-by.html

Exploiting Samsung Galaxy S4 secure boot:
http://blog.azimuthsecurity.com/2013/05/exploiting-samsung-galaxy-s4-secure-boot.html

A closer look at a recent privilege escalation bug in Linux
(CVE-2013-2094):
http://timetobleed.com/a-closer-look-at-a-recent-privilege-escalation-bug-in-linux-cve-2013-2094/

Advanced exploitation of Internet Explorer 10 / Windows 8 overflow
(CVE-2013-2551):

http://www.vupen.com/blog/20130522.Advanced_Exploitation_of_IE10_Windows8_Pwn2Own_2013.php
Interview with a Black Hat: Black market for pwn and profit:
http://blog.whitehatsec.com/interview-with-a-blackhat-part-1/

ATM and Point-of-Sale terminal malware:
http://blog.malwarebytes.org/intelligence/2013/05/atm-and-point-of-sale-terminals-malware-the-bad-guys-just-never-stop/#

http://blog.sucuri.net/2013/05/from-a-site-compromise-to-full-root-access-symlinks-to-root-part-i.html


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-2013-2028
Title: Nginx HTTP Server 1.3.9-1.4.0 Chuncked Encoding Stack Buffer
Overflow
Vendor: nginx.org
Description: Remote exploitation of an integer overflow vulnerability
in version 1.4.0 of nginx, as included in various vendors’ operating
system distributions, could allow attackers to execute arbitrary code
on the targeted host.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2013-1347
Title: Microsoft Internet Explorer 8 Use-After-Free Memory Corruption
Vulnerability
Vendor: Microsoft
Description: Microsoft Internet Explorer 8 does not properly handle
objects in memory, which allows remote attackers to execute arbitrary
code by accessing an object that (1) was not properly allocated or (2)
is deleted, as exploited in the wild in May 2013.

CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2013-3336
Title: Adobe ColdFusion Information Disclosure Vulnerability (APSB13-13)
Vendor: Adobe
Description: Unspecified vulnerability in Adobe ColdFusion 9.0, 9.0.1,
9.0.2, and 10 allows remote attackers to read arbitrary files via
unknown vectors.
CVSS v2 Base Score: 5.0 (AV:N/AC:L/Au:N/C:P/I:N/A:N)

ID: CVE-2013-2423
Title: Java Applet Reflection Type Confusion Remote Code Execution
Vendor: Oracle
Description: Unspecified vulnerability in the Java Runtime Environment
(JRE) component in Oracle Java SE 7 Update 17 and earlier, and OpenJDK
7, allows remote attackers to affect integrity via unknown vectors
related to HotSpot. NOTE: the previous information is from the April
2013 CPU. Oracle has not commented on claims from the original
researcher that this vulnerability allows remote attackers to bypass
permission checks by the MethodHandles method and modify arbitrary
public final fields using reflection and type confusion, as demonstrated
using integer and double fields to disable the security manager.
CVSS v2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)

ID: CVE-2013-0632
Title: Adobe ColdFusion APSB13-03 Remote Exploit
Vendor: Adobe
Description: Adobe ColdFusion 9.0, 9.0.1, 9.0.2, and 10 allows remote
attackers to bypass authentication and possibly execute arbitrary code
via unspecified vectors, as exploited in the wild in January 2013.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2013-1493
Title: Oracle Java SE JVM 2D Subcomponent Remote Code Execution
Vulnerability (Oracle Security Alert for CVE-2013-1493)

Vendor: Oracle
Description: The color management (CMM) functionality in the 2D
component in Oracle Java SE 7 Update 15 and earlier, 6 Update 41 and
earlier, and 5.0 Update 40 and earlier allows remote attackers to
execute arbitrary code or cause a denial of service (crash) via an image
with crafted raster parameters, which triggers (1) an out-of-bounds read
or (2) memory corruption in the JVM, as exploited in the wild in
February 2013.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)


MOST PREVALENT MALWARE FILES 5/23/2013 - 5/28/2013 COMPILED BY SOURCEFIRE

SHA 256: 9D96BE6E7087F402BDB79C3D2EA91D4B922CA28AC20381D8D9864FC6CC6C3875
MD5: cafed638c1b3341c34198edc05fe7a95
VirusTotal: https://www.virustotal.com/file/9D96BE6E7087F402BDB79C3D2EA91D4B922CA28AC20381D8D9864FC6CC6C3875/analysis/

Typical Filename: p18w7.exe
Claimed Product: p18w7.exe
Claimed Publisher: p18w7.exe

SHA 256: C21F13748F168B2E32F9B0DF5A2CA479423C407FA0376A65C3AB3CB4DE9AC9CA
MD5: 64568b7003292fa3a98556f2fcb553df
VirusTotal: https://www.virustotal.com/file/C21F13748F168B2E32F9B0DF5A2CA479423C407FA0376A65C3AB3CB4DE9AC9CA/analysis/

Typical Filename: DivXPlayer.exe
Claimed Product: DivXPlayer.exe
Claimed Publisher: DivXPlayer.exe

SHA 256: 03E0C6C4CA8A24F961477887763397045E67862E059F7494014AEFC21891D40E
MD5: b360fa63134a63f9acfe046d2dfe10d9
VirusTotal: https://www.virustotal.com/file/03E0C6C4CA8A24F961477887763397045E67862E059F7494014AEFC21891D40E/analysis/

Typical Filename: CWINDOWS_Temp_nsaxs.exe
Claimed Product: C
WINDOWS_Temp_nsaxs.exe
Claimed Publisher: C__WINDOWS_Temp_nsaxs.exe

SHA 256: E0B193D47609C9622AA018E81DA69C24B921F2BA682F3E18646A0D09EC63AC2B
MD5: bf31a8d79f704f488e3dbcb6eea3b3e3
VirusTotal: https://www.virustotal.com/file/E0B193D47609C9622AA018E81DA69C24B921F2BA682F3E18646A0D09EC63AC2B/analysis/

Typical Filename: klplmq.sys
Claimed Product: klplmq.sys
Claimed Publisher: klplmq.sys

SHA 256: AA0BBAECB678868E1E7F57C7CA9D61B608B3D788BE490790EB1D148BEADF4615
MD5: 3291e1603715c47a23b60a8bf2ca73db
VirusTotal: https://www.virustotal.com/file/AA0BBAECB678868E1E7F57C7CA9D61B608B3D788BE490790EB1D148BEADF4615/analysis/

Typical Filename: 01.tmp
Claimed Product: 01.tmp
Claimed Publisher: 01.tmp


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