Recent Security Issues


SELECTED BY THE TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP


Title: Microsoft discloses fewest vulnerabilities in a month since January

Description: Microsoft released its monthly security update Tuesday, disclosing 58 vulnerabilities across its suite of products, the lowest number of vulnerabilities in any Patch Tuesday since January. There are only 10 critical vulnerabilities as part of this release, while there are two moderate-severity exploits, and the remainder are considered "important." Users of all Microsoft and Windows products are urged to update their software as soon as possible to avoid possible exploitation of all these bugs. The security updates cover several different products and services, including the SharePoint file-sharing service, the Windows Backup Engine and the Exchange mail server.

Reference: https://blog.talosintelligence.com/2020/12/microsoft-patch-tuesday-dec-2020-.html

Snort SIDs: 56554, 56557, 56558, 56560 - 56562 and 56564


Title: RegretLocker targets Windows virtual machines

Description: Cisco Talos recently released new protection against the recently discovered RegretLocker ransomware. The malware was discovered last month targeting Windows virtual machines. The malware encrypts virtual hard drives and can also close open files to encrypt them. Once all the victim's files are encrypted, they're presented with a text file that asks victims to pay a ransom payment by emailing the actors. While RegretLocker is not particularly flashy, security researchers have found the malware uses several techniques that make it very problematic for virtual machine users.

Reference: https://www.bleepingcomputer.com/news/security/new-regretlocker-ransomware-targets-windows-virtual-machines/

Snort SIDs: 56555, 56556

Security News


A new report from McAfee states that cybercrime has cost companies across the globe a combined $1 trillion -- a 50 percent increase of the total over just two years.

https://www.mcafee.com/enterprise/en-us/assets/reports/rp-hidden-costs-of-cybercrime.pdf


The FBI is investigating the potential theft of voter data in the key presidential election battleground of Maricopa County, Arizona.

https://www.forbes.com/sites/thomasbrewster/2020/12/04/exclusive-the-fbi-is-investigating-voter-data-theft-in-this-key-2020-election-battleground/


The White House is considering an executive order that would restrict US cloud service providers from partnering with foreign cloud providers that offer safe havens for hackers.

https://www.politico.com/news/2020/12/04/trump-cloud-computing-executive-order-442918


The United Arab Emirates announced it was the target of multiple cyber attacks after it announced a groundbreaking deal to establish formal ties with Israel.

https://www.reuters.com/article/us-emirates-tech-israel/uae-target-of-cyber-attacks-after-israel-deal-official-says-idUSKBN28G0BW


Google launched a new open-source site containing information on cross-site leaks, which are commonly used by adversaries in attacks.

https://security.googleblog.com/2020/12/fostering-research-on-new-web-security.html


One of the largest recruiting firms in the world, Randstad, said a cybercrime group published internal corporate data on its site in an apparent extortion attempt after a ransomware attack.

https://www.cyberscoop.com/egregor-ransomware-randstand-head-hunter/


U.S. President Donald Trump signed a bill into law that creates new security standards for any internet-of-things (IoT) devices used by federal agencies.

https://www.darkreading.com/endpoint/trump-signs-iot-security-bill-into-law/d/d-id/1339636


American intelligence agencies have been using a provision in the Patriot Act to collect logs of users who visit certain websites.

https://www.nytimes.com/2020/12/03/us/politics/section-215-patriot-act.html


The TrickBot botnet seems to be back to nearly full strength a few months after a global takedown, this time with the ability to scan for vulnerable firmware and read, write or erase it on devices.

https://threatpost.com/trickbot-returns-bootkit-functions/161873/

Vulnerabilities with Exploits


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-2020-4006

Title: VMware Workspace One Access Command Injection Vulnerability

Vendor: VMware

Description: VMware Workspace One Access is exposed to a command injection vulnerability in the administrative configurator that could allow a malicious actor with network access to the administrative configurator on port 8443 and a valid password for the configurator admin account to execute commands with unrestricted privileges on the underlying operating system.

CVSS v3 Base Score: 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)


ID: CVE-2020-17049

Title: Microsoft Kerberos Security Feature Bypass Vulnerability

Vendor: Microsoft

Description: A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD). To exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it.

CVSS v3 Base Score: 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)


ID: CVE-2020-4463

Title: IBM Maximo Asset Management External Entity Injection Vulnerability

Vendor: IBM

Description: IBM Maximo Asset Management is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this vulnerability to expose sensitive information or consume memory resources.

CVSS v3 Base Score: 8.2 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L)


ID: CVE-2020-17140

Title: Microsoft Windows SMB Information Disclosure Vulnerability

Vendor: Microsoft

Description: Microsoft Windows is exposed to SMB information disclosure vulnerability where an attacker can successfully exploit this vulnerability to access contents of Kernel memory. An attacker could read the contents of Kernel memory from a user mode process. In a network-based attack, an authenticated attacker would need to open a specific file with captured oplock lease, then perform repeated specific modifications to that file.

CVSS v3 Base Score: 8.1 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)


ID: CVE-2020-8913

Title: Google Android Play Core Library Arbitrary Code Execution Vulnerability

Vendor: Google

Description: A local, arbitrary code execution vulnerability exists in the SplitCompat.install endpoint in Android's Play Core Library. A malicious attacker could create an app which targets a specific application, and if a victim were to install this app, the attacker could perform a directory traversal, execute code as the targeted application and access the targeted application's data on the Android device.

CVSS v3 Base Score: 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)


ID: CVE-2020-1971

Title: OpenSSL EDIPARTYNAME NULL pointer de-reference Vulnerability

Vendor: Mutli-Vendor

Description: A null pointer dereference flaw was found in openssl. A remote attacker, able to control the arguments of the GENERAL_NAME_cmp function, could cause the application, compiled with openssl to crash resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CVSS v3 Base Score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)


ID: CVE-2020-9844

Title: MacOS Catalina Memory Corruption Vulnerability

Vendor: Apple

Description: A double free issue was addressed with improved memory management. A remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

CVSS v3 Base Score: 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)


ID: CVE-2020-28914

Title: Kata Containers Improper File Permissions Vulnerability

Vendor: KataContainers

Description: An improper file permissions vulnerability affects Kata Containers. When using a Kubernetes hostPath volume and mounting either a file or directory into a container as readonly, the file/directory is mounted as readOnly inside the container, but is still writable inside the guest. For a container breakout situation, a malicious guest can potentially modify or delete files/directories expected to be read-only.

CVSS v3 Base Score: 7.1 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)

Prevalent Malware Files


COMPILED BY TALOS SECURITY INTELLIGENCE AND RESEARCH GROUP


SHA 256: c814e977d6451eeefacce58c0e0ffd395bc8725853a40c67aa7a326d6b39cfe1

MD5: fb8e3acde54227e3571f5341fafecf31

VirusTotal: https://www.virustotal.com/gui/file/c814e977d6451eeefacce58c0e0ffd395bc8725853a40c67aa7a326d6b39cfe1/details

Typical Filename: kmsauto-Downlading.zip

Claimed Product: N/A

Detection Name: Win.Tool.Autokms::in01


SHA 256: 100318042c011363a98f82516b48c09bbcdd016aec557b009c3dd9c17eed0584

MD5: 920823d1c5cb5ce57a7c69c42b60959c

VirusTotal: https://www.virustotal.com/gui/file/100318042c011363a98f82516b48c09bbcdd016aec557b009c3dd9c17eed0584/details

Typical Filename: FlashHelperService.exe

Claimed Product: Flash Helper Service

Detection Name: W32.Variant.23mj.1201


SHA 256: f4c15b1eee06d45fa6115ddcfeb24bdacf54570352e0cb713e1c5895089dae1d

MD5: d5b40faa134ee1e73233e521ac476cdd

VirusTotal: https://www.virustotal.com/gui/file/f4c15b1eee06d45fa6115ddcfeb24bdacf54570352e0cb713e1c5895089dae1d/details

Typical Filename: 12072020_130241_7399559.xlsm

Claimed Product: N/A

Detection Name: W32.F4C15B1EEE-90.SBX.TG


SHA 256: 85B936960FBE5100C170B777E1647CE9F0F01E3AB9742DFC23F37CB0825B30B5

MD5: 8c80dd97c37525927c1e549cb59bcbf3

VirusTotal: https://www.virustotal.com/gui/file/85b936960fbe5100c170b777e1647ce9f0f01e3ab9742dfc23f37cb0825b30b5/detection

Typical Filename: Eternalblue-2.2.0.exe

Claimed Product: N/A

Detection Name: Win.Exploit.Shadowbrokers::5A5226262.auto.talos


SHA 256: 9f1f11a708d393e0a4109ae189bc64f1f3e312653dcf317a2bd406f18ffcc507

MD5: 2915b3f8b703eb744fc54c81f4a9c67f

VirusTotal: https://www.virustotal.com/gui/file/9f1f11a708d393e0a4109ae189bc64f1f3e312653dcf317a2bd406f18ffcc507/details

Typical Filename: vid001.exe

Claimed Product: N/A

Detection Name: Win.Worm.Coinminer::1201