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Date: 06/28/2023
On June 23, 2023, Fortinet released a patch for a critical RCE vulnerability. CVE-2023-33299 vulnerability allows an unauthenticated attacker to execute code on unpatched FortiNAC devices.
For organizations running FortiNAC on their WAN Ips, this could give attackers a foothold in the organization.
Reference the article below, and upgrade FortiNAC to the latest build.
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On June 28, 2023, Grafana released patches for a critical authentication bypass vulnerability. According to NIST, the CVE-2023-3128 vulnerability allows for “account takeover and authentication bypass when Azure AD OAuth is configured with a multi-tenant app.”
Potential Impact
Account takeover in Grafana can lead to the exfiltration of whatever data is held in Grafana.
Upgrade Grafana to the latest release. The Bleeping Computer article linked below shows patch levels.
Sources
The U.S. Cybersecurity and Infrastructure Security Agency recently added six flaws to its Known Exploited Vulnerabilities (KEV) catalog. Among them were CVE-2023-20867 and CVE-2023-20887, vulnerabilities affecting VMware Tools and Aria Operations for Networks.
CVE-2023-20867 is an authentication bypass vulnerability where VMware tools can be forced to fail to authenticate on a fully compromised ESXi host resulting in access to virtual machines. CVE-2023-20887 is a command injection vulnerability that an actor can compromise with network access to VMWare Aria Operations for Networks. Exploitation would result in remote code execution.
Threat actors are more commonly targeting virtualization infrastructure, making it critical that updates are applied regularly. Fixes for 2023-20867 and CVE-2023-20887 are available and should be used quickly. Additionally, regular internal vulnerability scanning is recommended to ensure the identification and tracking of vulnerability management efforts.
Sources
https://www.vmware.com/security/advisories/VMSA-2023-0012.html
https://thehackernews.com/2023/06/us-cybersecurity-agency-adds-6-flaws-to.html
https://www.vmware.com/security/advisories/VMSA-2023-0013.html
A new cryptocurrency mining campaign targeting Internet-facing Linux and IoT devices has been identified. The campaign targets SSH services in brute force attacks to gain initial access.
Post-compromise activities include:
Internet-facing SSH services should be removed or restricted if not needed for business operations. Furthermore, passwords should adhere to best practices and have a minimum length greater than 14 characters. External vulnerability scanning is an effective way of identifying which services are openly accessible from the Internet. If suspicious outbound traffic, such as IRC (Internet Chat Relay), is detected, the originating device should be isolated and reviewed for indicators of compromise.
Sources
https://thehackernews.com/2023/06/new-cryptocurrency-mining-campaign.html
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