@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.
May 21, 2020=============================================================
@RISK: The Consensus Security Vulnerability Alert
May 21, 2020 - Vol. 20, Num. 21
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 May 14 - 21
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TOP VULNERABILITY THIS WEEK: Gh0st RAT part of large-scale spying campaign in Asia
******************** Sponsored By SANS ******************
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TRAINING UPDATE
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SEC560: Network Penetration Testing and Ethical Hacking | https://www.sans.org/ondemand/course/network-penetration-testing-ethical-hacking
FOR508: Advanced Incident Response, Threat Hunting, and Digital Forensics | https://www.sans.org/ondemand/course/advanced-incident-response-threat-hunting-training
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Upcoming Live Online Events:
Pen Test Hackfest & Cyber Ranges Summit 2020 (Free Summit) | June 4-13
- https://www.sans.org/event/rockymountainhackfest-summit-2020
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2-Day Firehose Training | June 29-30
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In Person Training:
SANS Network Security 2020 | Las Vegas, NV | September 20-27
- https://www.sans.org/event/network-security-2020
DFIR Summit & Training | July 16-25
- https://www.sans.org/event/digital-forensics-summit-2020
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NOTABLE RECENT SECURITY ISSUES
SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
Title: Researchers believe Gh0st RAT played large role in Asian spying campaign
Description: A joint analysis from two security firms found that malicious actors in Asia are using the Gh0st RAT backdoor to conduct espionage campaigns across Asia. The targets allegedly include a government agency, a telecommunications company and a gas company. The RAT allows the adversaries to take screenshots, execute console commands and exfiltrate data to a command and control (C2) server.
Reference: https://www.cisomag.com/a-joint-analysis-reveals-apt-group-spying-activities/
Snort SIDs: 53961, 53962
Title: DenDroid variant goes after Android users in Thailand
Description: Thai Android devices and users are being targeted by a modified version of DenDroid researchers at Cisco Talos are calling "WolfRAT," that is looking to exploit messaging apps like WhatsApp, Facebook Messenger and Line. Talos assesses with high confidence that this modified version is operated by the infamous Wolf Research. This actor has shown a surprising level of amateur actions, including code overlaps, open-source project copy/paste, classes never being instanced, unstable packages and unsecured panels.
Reference: https://blog.talosintelligence.com/2020/05/the-wolf-is-back.html
Snort SIDs: 54004
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INTERESTING NEWS FROM AROUND THE SECURITY COMMUNITY
Several so-called "malware testing services" are offering to fix flaws in adversaries' code, shoring up any vulnerabilities researchers may use to inspect the malware.
https://krebsonsecurity.com/2020/05/this-service-helps-malware-authors-fix-flaws-in-their-code/
Ukrainian officials arrested the alleged hacker behind a massive data dump that exposed more than 770 million email addresses last year.
https://www.pcmag.com/news/hacker-behind-last-years-collection1-data-dump-arrested-in-ukraine
Google Chrome will begin blocking online advertisements that use up too much of the user's memory and device power, using several metrics to determine if an ad is too resource-heavy.
https://venturebeat.com/2020/05/14/chrome-will-start-blocking-resource-heavy-ads-in-august/
The popular video game "Call of Duty" is requiring users to log in via two-factor authentication to access some online modes to push cheaters away.
https://www.vice.com/en_us/article/3azzyn/call-of-duty-warzone-cheaters-2fa-cellphone-number
Three vulnerabilities in Adobe Acrobat Reader could be used in conjunction with one another to allow an adversary to gain root access to some macOS machines.
Microsoft announced plans last week to make all its COVID-19 threat intelligence open-source to help organizations protect against threats built to capitalize on the pandemic.
https://www.microsoft.com/security/blog/2020/05/14/open-sourcing-covid-threat-intelligence/
Swiss budget airline easyJet was the victim of a data breach; the company says the attack compromised information belonging to more than 9 million customers.
https://www.theguardian.com/business/2020/may/19/easyjet-hacking-attack-what-to-do-customers
Israeli state-sponsored actors appear to be behind a disruptive attack on an Iranian port.
Adversaries hoping to capitalize on the COVID-19 pandemic are overloading states' unemployment portals by submitting fraudulent claims using stolen data.
https://www.nytimes.com/2020/05/16/us/coronavirus-unemployment-fraud-secret-service-washington.html
The U.S. Department of Justice is blaming Apple's encryption for a delayed discovery in terrorist group al-Qaida's connection to a mass shooting on a Naval base in December.
=========================================================
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-2020-1048
Title: Microsoft Windows Print Spooler Elevation of Privilege Vulnerability
Vendor: Microsoft
Description: An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges.
CVSS v3 Base Score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2020-3153
Title: Cisco AnyConnect Secure Mobility Client Vulnerability
Vendor: Cisco
Description: A vulnerability in the installer component of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated local attacker to copy user-supplied files to system level directories with system level privileges. The vulnerability is due to the incorrect handling of directory paths. An attacker could exploit this vulnerability by creating a malicious file and copying the file to a system directory. An exploit could allow the attacker to copy malicious files to arbitrary locations with system level privileges.
CVSS v3 Base Score: 6.5 (AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N)
ID: CVE-2020-0674
Title: Microsoft Windows Scripting Engine Memory Corruption Vulnerability
Vendor: Microsoft
Description: A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user.
CVSS v3 Base Score: 7.5 (AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
ID: CVE-2019-0685
Title: Microsoft Windows Win32k Elevation of Privilege Vulnerability
Vendor: Microsoft
Description: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode.
CVSS v3 Base Score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2020-11022
Title: jQuery Cross Site Scripting Vulnerability
Vendor: Multi-Vendor
Description: In jQuery, passing HTML from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. Successful exploitation of these vulnerabilities could lead to disclosure of sensitive information or addition or modification of data.
CVSS v3 Base Score: 6.1 (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
ID: CVE-2020-5837
Title: Symantec Endpoint Protection Elevation of Privilege Vulnerability
Vendor: Symantec
Description: Symantec Endpoint Protection, may not respect file permissions when writing to log files that are replaced by symbolic links, which can lead to a potential elevation of privilege.
CVSS v3 Base Score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2020-1015
Title: Microsoft Windows Elevation of Privilege Vulnerability
Vendor: Microsoft
Description: An elevation of privilege vulnerability exists in the way that the User-Mode Power Service (UMPS) handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.
CVSS v3 Base Score: 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
ID: CVE-2019-0887
Title: Microsoft Remote Desktop Services Remote Code Execution Vulnerability
Vendor: Microsoft
Description: A remote code execution vulnerability exists in Remote Desktop Servicesformerly known as Terminal Serviceswhen an authenticated attacker abuses clipboard redirection. An attacker who successfully exploited this vulnerability could execute arbitrary code on the victim system.
CVSS v3 Base Score: 7.2 (AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
=========================================================
MOST PREVALENT MALWARE FILES May 14 - 21:
COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP
SHA 256: 64f3633e009650708c070751bd7c7c28cd127b7a65d4ab4907dbe8ddaa01ec8b
MD5: 42143a53581e0304b08f61c2ef8032d7
VirusTotal: https://www.virustotal.com/gui/file/64f3633e009650708c070751bd7c7c28cd127b7a65d4ab4907dbe8ddaa01ec8b/details
Typical Filename: JPMorganChase Instructions SMG 82749206.pdf
Claimed Product: N/A
Detection Name: Pdf.Phishing.Phishing::malicious.tht.talos
SHA 256: dddbfa95401a3f2d9999055b976a0b4ae963e128f7f0d5b043efae29e4306c4a
MD5: 3409ff801cb177f6df26cfec8f4528ae
VirusTotal: https://www.virustotal.com/gui/file/dddbfa95401a3f2d9999055b976a0b4ae963e128f7f0d5b043efae29e4306c4a/details
Typical Filename: FlashHelperServices.exe
Claimed Product: Flash Helper Services
Detection Name: PUA.Win.Adware.Flashserv::100.sbx.vioc
SHA 256: 85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5
MD5: 8c80dd97c37525927c1e549cb59bcbf3
VirusTotal: https://www.virustotal.com/gui/file/85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5/details
Typical Filename: FlashHelperServices.exe
Claimed Product: Flash Helper Services
Detection Name: PUA.Win.Adware.Flashserv::100.sbx.vioc
SHA 256: 28c33a9676f04274b2868c1a2c092503a57d38833f0f8b964d55458623b82b6e
MD5: b065af93b5fd551526705b5968d0ca10
VirusTotal: https://www.virustotal.com/gui/file/28c33a9676f04274b2868c1a2c092503a57d38833f0f8b964d55458623b82b6e/details
Typical Filename: vscekgp.exe
Claimed Product: NTLM Shared Functionality
Detection Name: W32.28C33A9676-100.SBX.TG
SHA 256: a545df34334b39522b9cc8cc0c11a1591e016539b209ca1d4ab8626d70a54776
MD5: 5d34464531ddbdc7b0a4dba5b4c1cfea
VirusTotal: https://www.virustotal.com/gui/file/a545df34334b39522b9cc8cc0c11a1591e016539b209ca1d4ab8626d70a54776/details
Typical Filename: FlashHelperServices.exe
Claimed Product: Flash Helper Services
Detection Name: PUA.Win.Adware.Flashserv::in03.talos
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