Critical Atlassian Flaw Exploited to Deploy Linux Variant of Cerber Ransomware
Threat actors are exploiting unpatched Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware
Unauthenticated access lets systems or services be used without verifying identity, increasing the risk of data exposure, tampering, or abuse.
Search across headline titles and summaries.
Background for this topic.
Unauthenticated describes a request, session, or service that has not verified the requester’s identity. This may be intentional for public content or health checks, but in security reporting the term often highlights an interface that can be reached without credentials, such as an administration panel, API, database, or device-management service. It does not by itself mean the requester is authorized to perform every action; authentication and authorization are separate controls.
Unauthenticated exposure matters when it permits sensitive data retrieval, configuration changes, or exploitation of a vulnerability without a prior login. Security teams should identify such interfaces during asset discovery and vulnerability management, confirm that public access is necessary, and enforce authentication and least-privilege authorization where it is not. Network restrictions, safe defaults, logging, and alerts for unexpected access help reduce exposure and support investigation when an unauthenticated endpoint is abused.
Threat actors are exploiting unpatched Atlassian servers to deploy a Linux variant of Cerber (aka C3RB3R) ransomware
Cybersecurity researchers have discovered a new campaign that's exploiting a recently disclosed security flaw in Fortinet FortiClient EMS devices to deliver ScreenConnect and Metasploit Powerfun payloads
Palo Alto Networks has released hotfixes to address a maximum-severity security flaw impacting PAN-OS software that has come under active exploitation in the wild