CISA adds WatchGuard flaw to its Known Exploited Vulnerabilities Catalog

The U.S. CISA added the CVE-2022-23176 flaw in WatchGuard Firebox and XTM appliances to its Known Exploited Vulnerabilities Catalog.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the CVE-2022-23176 flaw in WatchGuard Firebox and XTM appliances to its Known Exploited Vulnerabilities Catalog.

According to Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities, FCEB agencies have to address the identified vulnerabilities by the due date to protect their networks against attacks exploiting the flaws in the catalog.

Experts recommend also private organizations review the Catalog and address the vulnerabilities in their infrastructure.

A remote attacker with unprivileged credentials can exploit the CVE-2022-23176 vulnerability in WatchGuard Firebox and XTM appliances to access the system with a privileged management session via exposed management access.

The vulnerability is actively exploited by the Cyclops Blink botnet operated by the Russia-linked Sandworm APT group. Sandworm (aka BlackEnergy and TeleBots) has been active since 2000, it operates under the control of Unit 74455 of the Russian GRU’s Main Center for Special Technologies (GTsST).

The group is also the author of the NotPetya ransomware that hit hundreds of companies worldwide in June 2017, causing billions worth of damage.

Cyclops Blink is believed to be a replacement for the VPNFilter botnet, which was first exposed in 2018 and at the time was composed of more than 500,000 compromised routers and network-attached storage (NAS) devices.

The Cyclops Blink malware has been active since at least June 2019, it targets WatchGuard Firebox, Small Office/Home Office (SOHO) network devices, and ASUS router models.

WatchGuard published instructions on how to restore compromised Firebox appliances. The company also developed and released a set of Cyclops Blink detection tools, as well as this 4-Step Cyclops Blink Diagnosis and Remediation Plan to help customers diagnose, remediate if necessary, and prevent future infection.

Cyclops Blink is sophisticated malware with a modular structure. It supports functionality to add new modules at run-time allowing Sandworm operators to implement additional capability as required.

The malware leverages the firmware update process to achieve persistence. The malware manages clusters of victims and each deployment of Cyclops Blink has a list of command and control (C2) IP addresses and ports that it uses.

Recently, the U.S. government has announced that it had dismantled the Cyclops Blink botnet operated by the Russia-linked Sandworm APT group.

CISA also added to the catalog two flaws in Microsoft Active Directory (CVE-2021-42287, CVE-2021-42278), a flaw in Google Pixel (CVE-2021-39793), a flaw in Checkbox Survey (CVE-2021-27852), a flaw in Linux Kernel (CVE-2021-22600), a bug in QNAP NAS (CVE-2020-2509), and a vulnerability in Telerik WEB UI (CVE-2017-11317).

The vulnerabilities added to the catalog have to be addressed by federal agencies by May 02, 2022.

Please vote for Security Affairs as the best European Cybersecurity Blogger Awards 2022 – VOTE FOR YOUR WINNERS
Vote for me in the sections “The Underdogs – Best Personal (non-commercial) Security Blog” and “The Tech Whizz – Best Technical Blog” and others of your choice.
To nominate, please visit: https://docs.google.com/forms/d/e/1FAIpQLSfxxrxICiMZ9QM9iiPuMQIC-IoM-NpQMOsFZnJXrBQRYJGCOw/viewform

Follow me on Twitter: @securityaffairs and Facebook

[adrotate banner=”9″]

[adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, Known Exploited Vulnerabilities Catalog)

[adrotate banner=”5″]

[adrotate banner=”13″]

Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.