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SANS NewsBites is a semiweekly high-level executive summary of the most important news articles that have been published on computer security during the last week. Each news item is very briefly summarized and includes a reference on the web for detailed information, if possible.

Spend five minutes per week to keep up with the high-level perspective of all the latest security news. New issues are delivered free every Tuesday and Friday.

Volume XXI - Issue #91

November 19, 2019

Phishing Office 365 Admins; Disney+ Accounts Offered on Hacker Forums; Louisiana Takes Down Servers to Contain Ransomware; Nunavut Ransomware Attack




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SANS NewsBites                Nov. 19, 2019                Vol. 21, Num. 091

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TOP OF THE NEWS

 

 Phishing Campaign Targets Office 365 Admins

  Disney+ Accounts Compromised, Offered for Sale on Hacker Forums

  Louisiana's Office of Technology Services Takes Down Servers to Contain Ransomware Attack on State Government

  Nunavut Government Recovering from Ransomware Attack



REST OF THE WEEK'S NEWS


  Intel to Pull Old Drivers and BIOS Updates from Website

  Google Fixes Gmail Cross-Site Scripting Flaw

  Sometimes Medical Device Security is at Vendors' Discretion

  Some Macy's Pages Infected with MageCart Malware

  Bluetooth Scanning and Device Theft

  Facebook Fixes WhatsApp Remote Code Execution Flaw

  Prison Sentence for Man Operating DDoS-for-Hire Scheme


INTERNET STORM CENTER TECH CORNER


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TOP OF THE NEWS   

 

--Phishing Campaign Targets Office 365 Admins

(November 18, 2019)

A phishing campaign uses legitimate sender domains to target Office 365 administrators. The emails appear to come from Microsoft, but are actually coming from other compromised organizations. If a phish is successful, the attackers can then use that account to set up more email accounts that appear legitimate and can be used to send additional phishing messages.


[Editor Comments]


[Pescatore] The major cause for compromise of cloud services has been enterprise admins using reusable passwords. The business and user side wants to move to cloud; IT should be saying "OK, part of the transition cost is strong authentication by our admins." This admin privilege management issue does not impact users at all!


[Neely] Enable MFA for administrator accounts and monitor their use. Your admins may wish to keep a "break glass" account with a reusable password. If so, it should be audited, and password changed when used. To help minimize the number of Global Admins in O365, Microsoft is previewing a new role called Global Reader to enable visibility without update capabilities. Disable legacy protocols (IMAP/POP/SMTP) which use legacy or non-MFA authentication. Microsoft can be engaged to assess the security of your O365 environment.


[Murray] In addition to strong authentication, privileged access management mechanisms are indicated here. It is beyond ironic that the place where we are least likely to find strong authentication and are most likely to have shared ID's and passwords is among privileged users.


Read more in:

Threatpost: Office 365 Admins Targeted in Ongoing Phishing Scam

https://threatpost.com/office-365-admins-phishing/150352/

Infosecurity Magazine: Office 365 Admins Singled Out in Phishing Campaign

https://www.infosecurity-magazine.com/news/office-365-admins-singled-out-in/

 
 

--Disney+ Accounts Compromised, Offered for Sale on Hacker Forums

(November 16, 2019)

Within hours after the launch of the Disney+ video streaming service, hackers began hijacking accounts and making them available on hacker forums.


[Editor Comments]


[Neely] The most likely source of compromised account information is credential reuse. While it is tempting to reuse passwords or select passwords that are easy to enter on your streaming device, use unique long passphrases on every account. Disney+ doesn't support MFA.


Read more in:

ZDNet: Thousands of hacked Disney+ accounts are already for sale on hacking forums

https://www.zdnet.com/article/thousands-of-hacked-disney-accounts-are-already-for-sale-on-hacking-forums/

Infosecurity Magazine: Hacked Disney+ Accounts on Sale for $1

https://www.infosecurity-magazine.com/news/hacked-disney-accounts-on-sale-for/



--Louisiana's Office of Technology Services Takes Down Servers to Contain Ransomware Attack on State Government

(November 18 & 19, 2019)

State government IT systems and websites in Louisiana were unavailable on Monday. Governor John Bel Edwards said that the state's cybersecurity team was activated "in response to an attempted ransomware attack." The state's Office of Technology Services (OTS) took agency servers offline as a precaution.  


Read more in:

ZDNet: Ransomware hits Louisiana state government systems

https://www.zdnet.com/article/ransomware-hits-louisiana-state-government-systems/

Reuters: Louisiana government computers knocked out after ransomware attack

https://www.reuters.com/article/us-usa-louisiana-cyberattack/louisiana-government-computers-knocked-out-after-ransomware-attack-idUSKBN1XS2LA

The Hill: Louisiana activates cybersecurity team in response to attack on state agencies

https://thehill.com/policy/cybersecurity/471024-louisiana-activates-cybersecurity-team-in-response-to-attack-on-state

Bleeping Computer: Louisiana Government Suffers Outage Due to Ransomware Attack

https://www.bleepingcomputer.com/news/security/louisiana-government-suffers-outage-due-to-ransomware-attack/

 
 

--Nunavut Government Recovering from Ransomware Attack

(November 14 & 15, 2019)

Computer systems belonging to the Nunavut (Canada) government are starting to be restored after a ransomware attack that hit its computers on November 2. The government did not pay the ransom demanded and has instead reverted to faxes, paper forms, and telephone calls to conduct business while government machines are being wiped and reformatted. The Nunavut government keeps monthly and annual backups of its systems and takes a nightly snapshot.  


Read more in:

CBC: Nunavut government computer systems coming back online after cyber attack

https://www.cbc.ca/news/canada/north/nunavut-government-cyber-attack-1.5361662

Nunatsiaq: Government of Nunavut slowly rebuilds computer network following ransomware attack

https://nunatsiaq.com/stories/article/government-of-nunavut-slowly-rebuilds-computer-network-following-ransomware-attack/


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REST OF THE WEEK'S NEWS      

 

--Intel to Pull Old Drivers and BIOS Updates from Website

(November 18, 2019)

Intel has announced that it will remove old drivers and BIOS updates from its website by Friday, November 22. Many of the drivers that will be purged are for versions of Windows operating systems that Microsoft no longer supports. This means that users running legacy systems need to download the drivers and BIOS updates they need as soon as possible. If they miss the November 22 deadline, there are mirrors of the Intel FTP site.  


Read more in:

ZDNet: Intel to remove old drivers and BIOS updates from its site by the end of the week

https://www.zdnet.com/article/intel-to-remove-old-drivers-and-bios-updates-from-its-site-by-the-end-of-the-week/

Bleeping Computer: Intel is Removing End of Life Drivers and BIOS Downloads

https://www.bleepingcomputer.com/news/hardware/intel-is-removing-end-of-life-drivers-and-bios-downloads/

 
 

--Google Fixes Gmail Cross-Site Scripting Flaw

(November 18, 2019)

Google has fixed a cross-site scripting flaw in the AMP4Email feature. AMP4Email, also known as dynamic email, makes it easier for email to display dynamic content. The feature was made generally available in July. The researcher who found the vulnerability said it "is an example of a real-world exploitation of well-known browser issue called DOM Clobbering." He notified Google of the flaw in August, and a fix was made available before the issue was publicly disclosed.


Read more in:

Security: XSS in GMail's AMP4Email via DOM Clobbering

https://research.securitum.com/xss-in-amp4email-dom-clobbering/

ZDNet: Google patches 'awesome' XSS vulnerability in Gmail dynamic email feature

https://www.zdnet.com/article/google-patches-awesome-xss-vulnerability-in-gmail/

 
 

--Sometimes Medical Device Security is at Vendors' Discretion

(November 18, 2019)

In some cases, the security of Internet of Things (IoT) medical devices on health care organizations' networks is managed by the vendors. Often, the vendors do not allow the organization to apply patches, change admin credentials, or add anti-malware protection; if the organizations make such changes, the devices' warranty is voided. One way of managing this issue is to segment the devices.


[Editor Comments]


[Pescatore] Big sigh. At Gartner in 2006, I wrote a research note that pointed out "The Food and Drug Administration issued guidance that removed barriers to medical equipment vendors rapidly issuing patches for vulnerabilities in their products because of FDA certification issues. Enterprises should demand that vendors step up the timeliness of their patch processes." The FDA reiterated that guidance in 2014 and in 2018 put out additional guidance. What has been lacking is health care enterprises mandating security requirements and evaluation criteria for all device procurements. If heath care organizations continue to buy junk, the device manufacturers will continue to sell junk.


[Neely] Mitigations for these devices are similar to other unpatched/minimally secure devices on your network: segment them, monitor their actions, and restrict connectivity to only devices and services that are absolutely needed.


Read more in:

Dark Reading: How Medical Device Vendors Hold Healthcare Security for Ransom

https://www.darkreading.com/edge/theedge/how-medical-device-vendors-hold-healthcare-security-for-ransom/b/d-id/1336388

 
 

--Some Macy's Pages Infected with MageCart Malware

(November 14 & 18, 2019)

Macy's, the US department store, has published a Notice of Breach document explaining that the "Checkout" and "My Wallet" pages on macys.com were infected with MageCart malware last month. The malware was added to the pages on October 7, 2019. Macy's became aware of the situation and removed the malware on October 15. The incident compromised customers' personal information, including names, addresses, email addresses, payment card numbers, expiration dates, and security codes.


[Editor Comments]


[Murray] Online merchants that accept credit cards at checkout put themselves and their customers at unnecessary risk of fraud. Merchants should provide, and consumers should prefer, the use of proxies such as PayPal, Apple Pay, and Click2Pay.  


Read more in:

SC Magazine: Macys.com Magecart attack yields payment, personal info

https://www.scmagazine.com/home/security-news/macys-com-magecart-attack-yields-payment-personal-info/

Bleeping Computer: Macy's Customer Payment Info Stolen in MageCart Data Breach

https://www.bleepingcomputer.com/news/security/macys-customer-payment-info-stolen-in-magecart-data-breach/

Document Cloud: Macy's Notice of Data Breach, November 14, 2019

https://www.documentcloud.org/documents/6552530-MACY-S-NOTICE-OF-DATA-BREACH.html

 
 

--Bluetooth Scanning and Device Theft

(November 18, 2019)        

An increase in the number of laptops and other devices from cars suggests that thieves may be using Bluetooth scanners to detect devices left inside vehicles. On some devices, if Bluetooth is turned on, the devices will put out a detectable beacon even when they are idle. Law enforcement officials in some jurisdictions say they are aware of thieves using scanners, but did not provide details.


[Editor Comments]


[Neely] Replacing sleep mode with hibernate turns off the laptop and stops detectable emissions. Also remember to turn off emissions from other mobile devices stored in the car. The simplest fix may be a policy of not leaving devices in vehicles at all.


Read more in:

Wired: Burglars Really Do Use Bluetooth Scanners to Find Laptops and Phones

https://www.wired.com/story/bluetooth-scanner-car-thefts/

 
 

--Facebook Fixes WhatsApp Remote Code Execution Flaw

(November 18, 2019)

Facebook has patched a vulnerability in WhatsApp that could be used to launch remote code execution attacks or cause denial-of-service conditions. The stack-based buffer overflow flaw could be exploited by sending a specially-crafted MP4 video file to a targeted user.   


[Editor Comments]


[Neely] While there are no reports of active exploitation, it's prudent to update your application now. If you're no longer using the WhatsApp, uninstall it.


Read more in:

Threatpost: WhatsApp Remote Code Execution Triggered by Videos

https://threatpost.com/whatsapp-remote-code-execution-videos/150360/

Facebook: CVE-2019-11931

https://www.facebook.com/security/advisories/cve-2019-11931

 
 

--Prison Sentence for Man Operating DDoS-for-Hire Scheme

(November 15, 2019)

A US District Judge in North Carolina has sentenced an Illinois man to 13 months in prison for "owning, administering, and supporting illegal booter services" that were used to launch distributed denial-of-service (DDoS) attacks. Sergiy Usatyuk was also ordered to pay more than $500,000 in restitution.


Read more in:

Justice: Former Operator of Illegal Booter Services Sentenced for Conspiracy to Commit Computer Damage and Abuse

https://www.justice.gov/opa/pr/former-operator-illegal-booter-services-sentenced-conspiracy-commit-computer-damage-and-abuse

The Register: Denial of service kingpin hit with 13 months denial of freedom and a massive bill to pay

https://www.theregister.co.uk/2019/11/15/ddos_owner_13_months_prison/

Regmedia: USA v. Sergiy Petrovich Usatyuk

https://regmedia.co.uk/2019/11/15/usatyuk_complaint.pdf

 

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INTERNET STORM CENTER TECH CORNER

 

TPM Fail Update

https://downloadcenter.intel.com/download/28632

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00241.html


Carriers Filter SMS Messages Sent By Applications

https://isc.sans.edu/forums/diary/SMS+and+2FA+Another+Reason+to+Move+away+from+It/25526/


Office November Update Issues

https://borncity.com/win/2019/11/13/office-november-2019-updates-are-causing-access-error-3340/


WhatsApp Stack Based Buffer Overflow

https://nvd.nist.gov/vuln/detail/CVE-2019-11931


Android Qualcom Data Exfiltration Bug

https://research.checkpoint.com/the-road-to-qualcomm-trustzone-apps-fuzzing/


Nextcloud Ransomware NextCry

https://www.bleepingcomputer.com/news/security/new-nextcry-ransomware-encrypts-data-on-nextcloud-linux-servers/


Intel Removing BIOS Downloads for EOL Hardware

https://www.vogons.org/viewtopic.php?f=46&t=69184

https://news.ycombinator.com/item?id=21563309


Outlook 365 Remains Top Phishing Target

https://info.phishlabs.com/blog/active-office-365-phishing-campaign-targeting-admin-credentials


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The Editorial Board of SANS NewsBites

 

John Pescatore was Vice President at Gartner Inc. for fourteen years. He became a director of the SANS Institute in 2013. He has worked in computer and network security since 1978 including time at the NSA and the U.S. Secret Service.


Shawn Henry is president of CrowdStrike Services. He retired as FBI Executive Assistant Director responsible for all criminal and cyber programs and investigations worldwide, as well as international operations and the FBI's critical incident response.


Suzanne Vautrinot was Commander of the 24th Air Force (AF Cyber) and now sits on the board of directors of Wells Fargo and several other major organizations.


Ed Skoudis is co-founder of CounterHack, the nation's top producer of cyber ranges, simulations, and competitive challenges, now used from high schools to the Air Force. He is also author and lead instructor of the SANS Hacker Exploits and Incident Handling course, and Penetration Testing course.


Mark Weatherford is Global Information Security Strategist for Booking Holdings and the former Deputy Under Secretary of Cybersecurity at the US Department of Homeland Security.


Stephen Northcutt teaches advanced courses in cyber security management; he founded the GIAC certification and was the founding President of STI, the premier skills-based cyber security graduate school, www.sans.edu.


Dr. Johannes Ullrich is Chief Technology Officer of the Internet Storm Center and Dean of the Faculty of the graduate school at the SANS Technology Institute.


William Hugh Murray is an executive consultant and trainer in Information Assurance and Associate Professor at the Naval Postgraduate School.


Lee Neely is a Senior Cyber Analyst at Lawrence Livermore National Laboratory, SANS Analyst and Mentor. He has worked in computer security since 1989.


Rob Lee is the SANS Institute's top forensics instructor and director of the digital forensics and incident response research and education program at SANS (computer-forensics.sans.org).


Tom Liston is member of the Cyber Network Defense team at UAE-based Dark Matter. He is a Handler for the SANS Institute's Internet Storm Center and co-author of the book Counter Hack Reloaded.


Jake Williams is a SANS course author and the founder of Rendition Infosec, with experience securing DoD, healthcare, and ICS environments.


Dr. Eric Cole is an instructor, author and fellow with The SANS Institute. He has written five books, including Insider Threat and he is a founder with Secure Anchor Consulting.


David Hoelzer is the director of research & principal examiner for Enclave Forensics and a senior fellow with the SANS Technology Institute.


Gal Shpantzer is a trusted advisor to CSOs of large corporations, technology startups, Ivy League universities and non-profits specializing in critical infrastructure protection. Gal created the Security Outliers project in 2009, focusing on the role of culture in risk management outcomes and contributes to the Infosec Burnout project.


Alan Paller is director of research at the SANS Institute.


Brian Honan is an independent security consultant based in Dublin, Ireland.


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