CISA and FBI Release ESXiArgs Ransomware Recovery Guidance

Original release date: February 8, 2023

Today, CISA and the Federal Bureau of Investigation (FBI) released a joint Cybersecurity Advisory, ESXiArgs Ransomware Virtual Machine Recovery Guidance. This advisory describes the ongoing ransomware campaign known as “ESXiArgs.” Malicious cyber actors may be exploiting known vulnerabilities in unpatched and out-of-service or out-of-date versions of VMware ESXi software to gain access to ESXi servers and deploy ESXiArgs ransomware. The ransomware encrypts configuration files on ESXi servers, potentially rendering virtual machines unusable.

As detailed in the advisory, CISA has created and released an ESXiArgs recovery script at https://github.com/cisagov/ESXiArgs-Recover. CISA and FBI encourage organizations that have fallen victim to ESXiArgs ransomware to consider using the script to attempt to recover their files.

Additionally, CISA and FBI encourage all organizations to review the advisory and incorporate the recommendations for protecting against ESXiArgs ransomware.

This product is provided subject to this Notification and this Privacy & Use policy.

CISA Releases ESXiArgs Ransomware Recovery Script

Original release date: February 7, 2023

CISA has released a recovery script for organizations that have fallen victim to ESXiArgs ransomware. The ESXiArgs ransomware encrypts configuration files on vulnerable ESXi servers, potentially rendering virtual machines (VMs) unusable.

CISA recommends organizations impacted by ESXiArgs evaluate the script and guidance provided in the accompanying README file to determine if it is fit for attempting to recover access to files in their environment.

Organizations can access the recovery script here: https://github.com/cisagov/ESXiArgs-Recover

This product is provided subject to this Notification and this Privacy & Use policy.

CISA Releases One Industrial Control Systems Advisory

Original release date: February 7, 2023

CISA released one Industrial Control Systems (ICS) advisory on February 7, 2023. This advisory provides timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review the newly released ICS advisory for technical details and mitigations:

This product is provided subject to this Notification and this Privacy & Use policy.

CISA Adds Two Known Exploited Vulnerabilities to Catalog

Original release date: February 2, 2023

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Note: To view the newly added vulnerabilities in the catalog, click on the arrow in the “Date Added to Catalog” column, which will sort by descending dates.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the Known Exploited Vulnerabilities Catalog as a living list of known CVEs that carry significant risk to the federal enterprise. BOD 22-01 requires FCEB agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the Catalog that meet the specified criteria.

This product is provided subject to this Notification and this Privacy & Use policy.

CISA Releases Six Industrial Control Systems Advisories

Original release date: February 2, 2023

CISA released six Industrial Control Systems (ICS) advisories on February 2, 2023.These advisories provides timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review the newly released ICS advisories for technical details and mitigations:

This product is provided subject to this Notification and this Privacy & Use policy.

Cisco Releases Security Advisories for Multiple Products

Original release date: February 2, 2023

Cisco released security updates for vulnerabilities affecting multiple products. A remote attacker could exploit these vulnerabilities to take control of an affected system.

CISA encourages users and administrators to review the Cisco Security Advisories page and apply the necessary updates.

This product is provided subject to this Notification and this Privacy & Use policy.

Drupal Releases Security Update to Address a Vulnerability in Apigee Edge

Original release date: February 2, 2023

Drupal released a security update to address a vulnerability affecting the Apigee Edge module for Drupal 9.x. An attacker could exploit this vulnerability to bypass access authorization or disclose sensitive information.

CISA encourages users and administrators to review Drupal’s security advisory SA-CONTRIB- 2023-005 and apply the necessary update.

This product is provided subject to this Notification and this Privacy & Use policy.

VMware Releases Security Update for VMware vRealize Operations

Original release date: February 1, 2023

VMware released a security update that addresses a cross-site request forgery bypass vulnerability affecting VMware vRealize Operations. A malicious user could exploit this vulnerability to take control of an affected system.

CISA encourages users and administrators to review VMware Security Advisory VMSA-2023-0002 and apply the necessary updates.

This product is provided subject to this Notification and this Privacy & Use policy.