CONTENTS:

NOTABLE RECENT SECURITY ISSUES
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES June 13 - 20, 2019
TOP VULNERABILITY THIS WEEK: New malvertising campaign delivers Buran ransomware

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

Title: Attackers redirect users to RIG exploit kit, downloads ransomware
Description: A new malvertising campaign in the wild attempts to trick users into clicking on malicious ads, then sending them to a web page containing the RIG exploit kit. Once infected, the kit then downloads the Buran ransomware. Buran is a fairly straightforward ransomware, implementing its encryption process and then displaying a ransom note to the victim.
Reference: https://securityintelligence.com/news/malvertising-campaign-infects-users-with-buran-ransomware-via-the-rig-exploit-kit/
Snort SIDs: 50457, 50458

Title: New Linux malware believed to use code from past Chinese malware
Description: A new malware known as “HiddenWasp” has been spotted in the wild targeting Linux machines. HiddenWasp contains several methods to avoid detection by antivirus solutions, and the attackers are still actively deploying it. Researchers discovered that the malware contains code that is copy and pasted from other, past attacks from Chinese actors.
Reference: https://koddos.net/blog/linux-targeted-by-chinese-malware-dubbed-hiddenwasp/
Snort SIDs: 48521 - 48528

INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY

The U.S. recently stepped up cyber attacks against the Russian electric grid, according to a new report.
https://www.nytimes.com/2019/06/15/us/politics/trump-cyber-russia-grid.html

Security researchers and U.S. power regulators are warning that some of the world’s most powerful hacking groups have zeroed in on attacking U.S. power suppliers.
https://www.eenews.net/stories/1060575609

The U.S. Department of Homeland Security issued a warning that all users should update their Microsoft products as soon as possible to protect against a wormable bug disclosed in May.
https://www.us-cert.gov/ncas/alerts/AA19-168A

A new backdoor called “HAWKBALL” is targeting government agencies in Central Asia via Microsoft Office vulnerabilities.
https://www.fireeye.com/blog/threat-research/2019/06/government-in-central-asia-targeted-with-hawkball-backdoor.html

More than seven million Venmo transactions were posted to GitHub, showing that the money-sending app’s data can be scraped easily.
https://www.infosecurity-magazine.com/news/7m-venmo-transactions-published-on-1/

Several malicious apps on the Google Play store are able to bypass two-factor authentication systems to steal users’ Bitcoin.
https://www.securityweek.com/android-apps-target-bitcoin-passing-2fa

Two new class-action lawsuits claim Amazon’s Alexa devices record and store children’s voice recordings without their knowledge.
https://threatpost.com/amazon-alexa-secretly-records-children/145708/

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-2019-2729
Title: Oracle WebLogic Deserialization Remote Code Execution Vulnerability
Vendor: Oracle
Description: A deserialization vulnerability via XMLDecoder exists in Oracle WebLogic Server. This remote code execution vulnerability is remotely exploitable without authentication, meaning it may be exploited over a network without the need for a username and password. A remote attacker could exploit this vulnerability to execute arbitrary code on the targeted system.
CVSS v2 Base Score: 10.0 (AV:N/AC:L/Au:N/C:C/I:C/A:C)

ID: CVE-2019-11477
Title: Linux Kernel Integer Overflow Vulnerability
Vendor: Linux
Description: An integer overflow flaw was found in the way the Linux kernel networking subsystem processed TCP Selective Acknowledgment (SACK) segments. While processing SACK segments, the Linux kernel socket buffer (SKB) data structure becomes fragmented. Each fragment is about TCP maximum segment size (MSS) bytes. To efficiently process SACK blocks, the Linux kernel merges multiple fragmented SKBs into one, potentially overflowing the variable holding the number of segments. A remote attacker could use this flaw to crash the Linux kernel by sending a crafted sequence of SACK segments on a TCP connection with small value of TCP MSS, resulting in a denial of service.
CVSS v2 Base Score: 9.3 (AV:N/AC:M/Au:N/C:C/I:C/A:C)

ID: CVE-2019-11707
Title: Mozilla Firefox and Firefox ESR Denial of Service Vulnerability
Vendor: Mozilla
Description: Mozilla Firefox and Firefox ESR are exposed to a denial of service vulnerability. A type confusion vulnerability exists in Mozilla Firefox that can result in an exploitable crash due to issues in Array.pop which can occur when manipulating JavaScript objects. This can allow for an exploitable crash.
CVSS v2 Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)

ID: CVE-2019-1053
Title: Microsoft Windows Shell Local Privilege Escalation Vulnerability
Vendor: Microsoft
Description: Microsoft Windows is exposed to a local privilege escalation vulnerability that exists when the Windows Shell fails to validate folder shortcuts. An attacker who successfully exploited the vulnerability could elevate privileges by escaping a sandbox.
CVSS v2 Base Score: 4.3 (AV:L/AC:L/Au:S/C:P/I:P/A:P)

ID: CVE-2019-5590
Title: Fortinet Fortiweb Cross Site Scripting Vulnerability
Vendor: Fortinet
Description: Fortinet Fortiweb is exposed to a cross site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie based authentication credentials and launch other attacks. The URL part of the report message is not encoded in Fortinet FortiWeb which may allow an attacker to execute unauthorized code or commands via attack reports generated in HTML format.
CVSS v2 Base Score: 9.0 (AV:N/AC:M/Au:N/C:C/I:C/A:P)
I
D: CVE-2019-12840
Title: Webmin Arbitrary Command Injection Vulnerability
Vendor: Webmin
Description: Webmin is exposed to a remote command injection vulnerability. An attacker may exploit this issue to execute arbitrary commands on the underlying operating system with root privileges. Any user authorized to the “Package Updates” module can execute arbitrary commands with root privileges via the data parameter to update.cgi.
CVSS v2 Base Score: 9.0 (AV:N/AC:M/Au:N/C:C/I:C/A:P)

ID: CVE-2019-12766
Title: Joomla! Core Cross Site Scripting Vulnerability
Vendor: Joomla
Description: Joomla! Core is exposed to a cross site scripting vulnerability because it fails to sanitize user supplied input. The subform fieldtype does not sufficiently filter or validate input of subfields. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie based authentication credentials and launch other attacks.
An issue was discovered in Joomla! before 3.9.7.
CVSS v2 Base Score: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)

ID: CVE-2019-9701
Title: Symantec DLP Cross Site Scripting Vulnerability
Vendor: Symantec
Description: A cross-site scripting vulnerability exists in DLP, a type of issue that can enable attackers to inject client-side scripts into web pages viewed by other users. A cross-site scripting vulnerability may be used by attackers to bypass access controls such as the same origin policy.
CVSS v2 Base Score: 5.2 (AV:A/AC:L/Au:S/C:P/I:P/A:P)

MOST PREVALENT MALWARE FILES June 13 - 20, 2019
COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP

SHA 256: 3f6e3d8741da950451668c8333a4958330e96245be1d592fcaa485f4ee4eadb3
MD5: 47b97de62ae8b2b927542aa5d7f3c858
VirusTotal: https://www.virustotal.com/#/file/3f6e3d8741da950451668c8333a4958330e96245be1d592fcaa485f4ee4eadb3/details
Typical Filename: qmreportupload.exe
Claimed Product: qmreportupload
Detection Name: Win.Trojan.Generic::in10.talos

SHA 256: 7acf71afa895df5358b0ede2d71128634bfbbc0e2d9deccff5c5eaa25e6f5510
MD5: 4a50780ddb3db16ebab57b0ca42da0fb
VirusTotal: https://www.virustotal.com/#/file/7acf71afa895df5358b0ede2d71128634bfbbc0e2d9deccff5c5eaa25e6f5510/details
Typical Filename: wup.exe
Claimed Product: N/A
Detection Name: W32.7ACF71AFA8-95.SBX.TG

SHA 256: 15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b
MD5: 799b30f47060ca05d80ece53866e01cc
VirusTotal: https://www.virustotal.com/#/file/15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b/details
Typical Filename: 15716598f456637a3be3d6c5ac91266142266a9910f6f3f85cfd193ec1d6ed8b.bin
Claimed Product: N/A
Detection Name: W32.Generic:Gen.22fz.1201

SHA 256: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f
MD5: e2ea315d9a83e7577053f52c974f6a5a
VirusTotal: https://www.virustotal.com/#/file/c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f/details
Typical Filename: Tempmf582901854.exe
Claimed Product: N/A
Detection Name: W32.AgentWDCR:Gen.21gn.1201

SHA 256: 46b241e3d33811f7364294ea99170b35462b4b5b85f71ac69d75daa487f7cf08
MD5: db69eaaea4d49703f161c81e6fdd036f
VirusTotal: https://www.virustotal.com/gui/file/46b241e3d33811f7364294ea99170b35462b4b5b85f71ac69d75daa487f7cf08/details
Typical Filename: xme32-2141-gcc.exe
Claimed Product: N/A