@RISK provides a reliable weekly summary of (1) newly discovered attack vectors, (2) vulnerabilities with active new exploits, (3) insightful explanations of how recent attacks worked, and other valuable data
A key purpose of the @RISK is to provide the data that will ensure that the 20 Critical Controls (the US and UK benchmark for effective protection of networked systems) continue to be the most effective defenses for all known attack vectors. But since it is also valuable for security practitioners, SANS is making it available to the 145,000 security practitioners who have completed SANS security training and others at their organizations who hope to stay current with the offensive methods in use.
March 26, 2020=============================================================
@RISK: The Consensus Security Vulnerability Alert
March 26, 2020 - Vol. 20, Num. 13
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 http://www.sans.org/newsletters/at-risk
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CONTENTS:
NOTABLE RECENT SECURITY ISSUES
INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
VULNERABILITIES FOR WHICH EXPLOITS ARE AVAILABLE
MOST PREVALENT MALWARE FILES March 19 - 26
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TOP VULNERABILITY THIS WEEK: Microsoft patches more than 100 vulnerabilities in monthly update
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Any course you have or will purchase is protected by the SANS Training Guarantee.
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1) Dragos webinar April 2: Ransomware in an Industrial World, led by ICS Instructor Jason Christopher. http://www.sans.org/info/215920
2) Learn 7 DevOps-friendly techniques to help you incorporate security so you can ramp quickly. Register: http://www.sans.org/info/215925
3) Webcast March 26th at 10:30 AM ET: Building an Enterprise DevSecOps Program. Register: http://www.sans.org/info/215945
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NOTABLE RECENT SECURITY ISSUES
SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: Cisco patches high-severity vulnerabilities in some routers
Description: Cisco disclosed five vulnerabilities in its SD-WAN software, three of which are considered high severity. The security flaws leave several products open to exploitation, including some routers and network management systems. CVE-2020-3266 is the most severe of all with a CVSS score of 7.8. A local attacker could exploit the CLI utility in SD-WAN to inject arbittrary commands with root privileges. The company says there are no workarounds as of the release of these exploits, so users are encouraged to patch as soon as possible.
Reference: https://www.networkworld.com/article/3533550/cisco-warns-of-five-sd-wan-security-weaknesses.html
Snort SIDs: 53481 - 53483
Title: Intel Raid Web Console 3 denial-of-service bugs
Description: The Intel RAID Web Console 3's web API contains two denial-of-service vulnerabilities. The Raid Web Console is a web-based application that provides several configuration functions for the Intel RAID line of products, which includes controllers and storage expanders. The console monitors, maintains and troubleshoots these products. An attacker could exploit both these bugs by sending a malicious POST request to the API.
Reference: https://blog.talosintelligence.com/2020/03/vulnerability-spotlight-intel-raid-web-march-2020.html
Snort SIDs: 51652, 51684
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INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
The World Health Organization says its seen an increasing in attempted cyber attacks against the organization as it continues to address the worldwide COVID-19 pandemic.
https://globalnews.ca/news/6720754/coronavirus-who-cyberattack-hackers/
These types of cyber attacks are popping up everywhere. A hospital in France says it also had to fend off a cyber intrusion this week.
Apps that claim to help users track the spread of COVID-19 are actually taking advantage of users, compromising their camera, photo storage and location.
https://www.cnet.com/news/fake-coronavirus-tracking-apps-are-really-malware-that-stalks-its-users/
Attackers are using an open redirect to the U.S. Department of Health and Human Services to push malware payloads onto victims using phishing emails.
A prominent law firm in the U.K. warned lawyers to disable their smart home devices like Google Home and Amazon Alexa so that they do not record confidential calls with clients as more employees begin working from home.
Israel's government beefed up its surveillance powers, announcing a plan to track the location and text messages of individuals who test positive for COVID-19
Researchers discovered a password for users to recover their ransomed information if they are infected with the fast-spreading CovidLock Android ransomware.
Financial technology company Finastra had to pause many of its operations over the weekend after the company said it found an intrusion on its network.
https://krebsonsecurity.com/2020/03/security-breach-disrupts-fintech-firm-finastra/
The movement and travel restrictions over COVID-19 is affecting how American intelligence officials do their jobs and has largely halted in-person espionage operations.
https://time.com/5806522/coronavirus-intelligence-networks/
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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-2020-9054
Title: Zyxel Remote Code Execution Vulnerability
Vendor: zyxel
Description: Multiple ZyXEL network-attached storage (NAS) devices running firmware contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device. ZyXEL NAS devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to properly sanitize the username parameter that is passed to it. If the username parameter contains certain characters, it can allow command injection with the privileges of the web server that runs on the ZyXEL device.
CVSS v3 Base Score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2020-3950
Title: VMware Fusion Privilege Escalation Vulnerability
Vendor: VMWare
Description: VMware Fusion, VMware Remote Console and Horizon Client for Mac contain a privilege escalation vulnerability due to improper use of setuid binaries. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMRC or Horizon Client is installed.
CVSS v3 Base Score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2020-0796
Title: Microsoft Windows SMBv3 Client/Server Remote Code Execution Vulnerability
Vendor: Microsoft
Description: A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests. An attacker who successfully exploited the vulnerability could gain the ability to execute code on the target server or client.
CVSS v3 Base Score: 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
ID: CVE-2020-0787
Title: Microsoft Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability
Vendor: Microsoft
Description: An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links. An attacker who successfully exploited this vulnerability could overwrite a targeted file leading to an elevated status.
CVSS v3 Base Score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2019-3830
Title: Apple MacOS Arbitrary File Overwrite Vulnerability
Vendor: Apple
Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. A malicious application may be able to overwrite arbitrary files.
CVSS v3 Base Score: 3.3 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
ID: CVE-2020-0863
Title: Windows Connected User Experiences and Telemetry Service Information Disclosure Vulnerability
Vendor: Microsoft
Description: An information vulnerability exists when Windows Connected User Experiences and Telemetry Service improperly discloses file information. Successful exploitation of the vulnerability could allow the attacker to read any file on the file system. To exploit the vulnerability, an attacker would have to log onto an affected system and run a specially crafted application.
CVSS v3 Base Score: 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
ID: CVE-2020-0688
Title: Microsoft Exchange Memory Corruption Vulnerability
Vendor: Microsoft
Description: A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory. Knowledge of a the validation key allows an authenticated user with a mailbox to pass arbitrary objects to be deserialized by the web application, which runs as SYSTEM.
CVSS v3 Base Score: 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2020-10243
Title: Joomla SQL injection Vulnerability
Vendor: Joomla
Description: An issue was discovered in Joomla!. The lack of type casting of a variable in a SQL statement leads to a SQL injection vulnerability in the Featured Articles frontend menutype.
CVSS v3 Base Score: 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
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MOST PREVALENT MALWARE FILES March 19 - 26:
COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
SHA 256: a545df34334b39522b9cc8cc0c11a1591e016539b209ca1d4ab8626d70a54776
MD5: 5d34464531ddbdc7b0a4dba5b4c1cfea
VirusTotal: https://www.virustotal.com/gui/file/a545df34334b39522b9cc8cc0c11a1591e016539b209ca1d4ab8626d70a54776/details
Typical Filename: FlashHelperServices.exe
Claimed Product: Flash Helper Service
Detection Name: PUA.Win.Adware.Flashserv::in03.talos
SHA 256: 8e0aea169927ae791dbafe063a567485d33154198cd539ee7efcd81a734ea325
MD5: 5fb477098fc975fd1b314c8fb0e4ec06
VirusTotal: https://www.virustotal.com/gui/file/8e0aea169927ae791dbafe063a567485d33154198cd539ee7efcd81a734ea325/details
Typical Filename: upxarch.exe
Claimed Product: N/A
Detection Name: Win.Dropper.Ranumbot::in07.talos
SHA 256: 85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5
MD5: 8c80dd97c37525927c1e549cb59bcbf3
VirusTotal: https://www.virustotal.com/gui/file/85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5/details
Typical Filename: Eternalblue-2.2.0.exe
Claimed Product: N/A
Detection Name: W32.85B936960F.5A5226262.auto.Talos
SHA 256: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f
MD5: e2ea315d9a83e7577053f52c974f6a5a
VirusTotal: https://www.virustotal.com/gui/file/c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f/details
Typical Filename: c3e530cc005583b47322b6649ddc0dab1b64bcf22b124a492606763c52fb048f.bin
Claimed Product: N/A
Detection Name: W32.AgentWDCR:Gen.21gn.1201
SHA 256: 46f2f4815d25bf313c08880f3b0a23fb541ae74344371867f58b64d1d488a02b
MD5: b70431ab7b13034e9d25edba5c5436d5
VirusTotal: https://www.virustotal.com/gui/file/46f2f4815d25bf313c08880f3b0a23fb541ae74344371867f58b64d1d488a02b/details
Typical Filename: FOC invoices_pdf.gz.xlsx
Claimed Product: N/A
Detection Name: W32.46F2F4815D-100.SBX.TG
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