CONTENTS:

NOTABLE RECENT SECURITY ISSUES
USEFUL EXPLANATIONS OF HOW NEW ATTACKS WORK
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES 8/20/2013 - 8/27/2013

TOP VULNERABILITY THIS WEEK: The .cn TLD was hit by what Chinese

authorities described as the country’s “largest-ever” DDoS attack over
the weekend, disrupting service there for approximately four hours. The
attack, whose source is so far unknown, highlights the vulnerability of
the modern Internet to flooding attacks, which have been a growing
scourge for financial institutions, governments, and others in the last
few years.

NOTABLE RECENT SECURITY ISSUES SELECTED BY THE SOURCEFIRE VULNERABILITY RESEARCH TEAM

Title: China suffers “largest-ever” DDoS attack
Description: An attack on the .cn registry and associated DNS services
hit at midnight Sunday local time this weekend, taking out service for a
large swath of the Chinese portion of the Internet. The outage, which
prompted an official apology from the state-run China Internet Network
Information Center, was described as the biggest attack to ever hit the
country’s core infrastructure. The source of the attacks is unclear at
this point, with some arguing that even a single unknown individual may
have been responsible.
Reference:
http://www.voanews.com/content/china-hit-by-largest-ever-hack-attack/1737132.html
http://threatpost.com/service-restored-to-cn-domain-after-large-ddos-attack
http://www.cnnic.net.cn/gjymaqzx/aqgg/aqggaqsj/201308/t20130826_41325.htm
Snort SID: N/A
ClamAV: N/A

Title: New Android malware sample uses SMTP to send mail
Description: While most Android malware uses some combination of SMS,
HTTP, and/or a custom binary protocol to communicate with the outside
world, a recently discovered sample from China uses SMTP to send stolen
data to its controllers. This novel technique illustrates the growing
complexity of Android malware, which continues to thrive in third-party
markets, particularly in Asia.
Reference:
http://www.f-secure.com/weblog/archives/00002594.html
Snort SID: 27725
ClamAV: ANDR.Trojan.SMSAgent-1

Title: New version of DirtJumper malware adds anti-DDoS tool features
Description: In an excellent illustration of the ongoing cat-and-mouse
game between malware creators and network defenders, a new version of
the popular DirtJumper DDoS software was recently released which
intelligently probes for the presence of certain types of network
defense tools. While security vendors are responding by updating their
detection mechanisms, such measures are reactive at best, and will
necessarily suffer from coverage gaps when further updates to the
toolset are released.
Reference:
http://www.crn.com/news/security/240160429/dirt-jumper-ddos-toolkit-gets-security-evasion-functionality.htm
Snort SID: 25903 - 25927
ClamAV: DoS.DirtJumper

USEFUL EXPLANATIONS OF HOW NEW ATTACKS WORK

Trafficking fraudulent accounts: the role of the underground market in
Twitter spam and abuse:
https://www.usenix.org/system/files/conference/usenixsecurity13/sec13-paper_thomas.pdf

Using MySQL locally for testing SQL injection techniques and syntaxes:
http://www.chokepoint.net/2013/08/using-mysql-locally-for-testing-sql.html

Security analysis of PRNGs with input: /dev/random is not robust:
http://eprint.iacr.org/2013/338

OpenSSL PRNG is not (really) fork-safe:
http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/

Responding to attacks on Apache Struts 2:
https://www.mandiant.com/blog/responding-attacks-apache-struts2/

Parsing SVN entries files with PowerShell:
https://www.netspi.com/blog/entryid/193/parsing-svn-entries-files-with-powershell

Cybercrooks use DDoS attacks to mask theft of banks’ millions:
http://news.cnet.com/8301-1009_3-57599646-83/cybercrooks-use-ddos-attacks-to-mask-theft-of-banks-millions/

Who wrote the Pincer Android trojan?
http://krebsonsecurity.com/2013/08/who-wrote-the-pincer-android-trojan/

SIMET box firmware analysis: embedded device hacking and forensics:
http://w00tsec.blogspot.com/2013/08/simet-box-firmware-analysis-embedded.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-2013-3763
Title: Oracle Endeca Server Remote Command Execution
Vendor: Oracle
Description: Unspecified vulnerability in the Oracle Endeca Server
component in Oracle Fusion Middleware 7.4.0 and 7.5.1.1 allows remote
authenticated users to affect confidentiality and integrity via unknown
vectors, a different vulnerability than CVE-2013-3764.
CVSS v2 Base Score: 5.5 (AV:N/AC:L/Au:S/C:P/I:P/A:N)

ID: Not Available
Title: Joomla! Unauthorised Uploads
Vendor: Joomla!
Description: Inadequate filtering leads to the ability to bypass file
type upload restrictions.
Affects Joomla! version 2.5.13 and earlier 2.5.x versions; and version
3.1.4 and earlier 3.x versions
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2013-2465
Title: Java storeImageArray() Invalid Array Indexing Vulnerability
Vendor: Oracle
Description: Unspecified vulnerability in the Java Runtime Environment
(JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45
and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote
attackers to affect confidentiality, integrity, and availability via
unknown vectors related to 2D. NOTE: the previous information is from
the June 2013 CPU. Oracle has not commented on claims from another
vendor that this issue allows remote attackers to bypass the Java
sandbox via vectors related to “Incorrect image channel verification” in
2D.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2013-1690
Title: Mozilla Firefox JavaScript Runtime Vulnerability
Vendor: Mozilla
Description: Mozilla Firefox before 22.0, Firefox ESR 17.x before
17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before
17.0.7 do not properly handle onreadystatechange events in conjunction
with page reloading, which allows remote attackers to cause a denial of
service (application crash) or possibly execute arbitrary code via a
crafted web site that triggers an attempt to execute data at an unmapped
memory location.
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)

ID: CVE-2013-2251
Title: Apache Struts 2 DefaultActionMapper Prefixes OGNL Code Execution
Vendor: Apache
Description: Apache Struts 2.0.0 through 2.3.15 allows remote attackers
to execute arbitrary OGNL expressions via a parameter with a crafted (1)
action: , (2) redirect:, or (3) redirectAction: prefix.
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)

ID: CVE-2013-2460
Title: Java Applet ProviderSkeleton Insecure Invoke Method
Vendor: Oracle
Description: Unspecified vulnerability in the Java Runtime Environment
(JRE) component in Oracle Java SE 7 Update 21 and earlier, and OpenJDK
7, allows remote attackers to affect confidentiality, integrity, and
availability via unknown vectors related to Serviceability. NOTE: the
previous information is from the June 2013 CPU. Oracle has not commented
on claims from another vendor that this issue allows remote attackers to
bypass the Java sandbox via vectors related to “insufficient access
checks” in the tracing component.
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)

MOST PREVALENT MALWARE FILES 8/20/2013 - 8/27/2013 COMPILED BY SOURCEFIRE

SHA 256: CB6873925C7ABF41B494B722D6FA350938800B9BD877A251DE7767E391200F65
MD5: 2c2c06dedc3a3b089d6e8813b2d49b04
VirusTotal: https://www.virustotal.com/file/CB6873925C7ABF41B494B722D6FA350938800B9BD877A251DE7767E391200F65/analysis/

Typical Filename: NirCmd
Claimed Product: NirCmd
Claimed Publisher: NirCmd

SHA 256: CB85D393C4E0DB5A1514C21F9C51BA4C12D82B7FABD9724616758AE528A5B16B
MD5: 7961a56c11ba303f20f6a59a506693ff
VirusTotal: https://www.virustotal.com/file/CB85D393C4E0DB5A1514C21F9C51BA4C12D82B7FABD9724616758AE528A5B16B/analysis/

Typical Filename: m3SrchMn
Claimed Product: m3SrchMn
Claimed Publisher: m3SrchMn

SHA 256: D14B66BD4C4C8F66A6EDF2820FD4162D09B326BEAF6A42014596571E81A1A503
MD5: 68b7f7a26b76805432e3d50009d2ab1f
VirusTotal: https://www.virustotal.com/file/D14B66BD4C4C8F66A6EDF2820FD4162D09B326BEAF6A42014596571E81A1A503/analysis/

Typical Filename: winnltxq.exe1
Claimed Product: winnltxq.exe1
Claimed Publisher: winnltxq.exe1

SHA 256: E83A61AE6CFED6861AFDFA73CA41B0000BFCFD4FF710B8C0067805024286CD07
MD5: 8bc3498a39fb2d290a8975fd5419eb55
VirusTotal: https://www.virustotal.com/file/E83A61AE6CFED6861AFDFA73CA41B0000BFCFD4FF710B8C0067805024286CD07/analysis/

Typical Filename: 8bc3498a39fb2d290a8975fd5419eb55
Claimed Product: 8bc3498a39fb2d290a8975fd5419eb55
Claimed Publisher: 8bc3498a39fb2d290a8975fd5419eb55

SHA 256: 6DDD0C3C4CC0A59E91964177139E979EF2D47C6C4645AADAC6A7A99A0DB16D12
MD5: e6daf677556826186b78b03d035be182
VirusTotal: https://www.virustotal.com/file/6DDD0C3C4CC0A59E91964177139E979EF2D47C6C4645AADAC6A7A99A0DB16D12/analysis/

Typical Filename: e6daf677556826186b78b03d035be182
Claimed Product: e6daf677556826186b78b03d035be182
Claimed Publisher: e6daf677556826186b78b03d035be182