CISA confirms critical Cleo bug exploitation in ransomware attacks
CISA confirmed today that a critical remote code execution bug in Cleo Harmony, VLTrader, and LexiCom file transfer software is being exploited in ransomware attacks. [...]
Remote code execution lets attackers run commands on a target system, enabling full compromise; patch exposed software and restrict privileges.
Search across headline titles and summaries.
Background for this topic.
Remote code execution (RCE) is the ability of an attacker to make a system run attacker-chosen code from a remote position, usually by exploiting a flaw in a network-facing application, service, protocol, or the processing of untrusted content. Unlike simple unauthorized access, successful RCE can run with the privileges of the affected process, enabling actions such as accessing data, changing configuration, disrupting a service, establishing persistence, or moving to other systems. Exploitability depends on factors including network reachability, authentication requirements, configuration, and whether execution is constrained.
Defenders should prioritize exposed RCE vulnerabilities in vulnerability management: inventory reachable assets, apply fixes or vendor mitigations, and restrict access or disable vulnerable functionality where patching is not immediately possible. Least privilege and service isolation limit the damage if exploitation succeeds. Secure input handling, safe deserialization, and avoiding unnecessary shell invocation reduce common attack paths. Monitoring for unusual process creation and outbound connections can support detection; suspected exploitation warrants prompt investigation, preservation of relevant logs, credential rotation where appropriate, and checks for persistence.
CISA confirmed today that a critical remote code execution bug in Cleo Harmony, VLTrader, and LexiCom file transfer software is being exploited in ransomware attacks. [...]
Cybersecurity researchers are warning that thousands of servers hosting the Prometheus monitoring and alerting toolkit are at risk of information leakage and exposure to denial-of-service (DoS) as well as remote code execution (RCE) attacks
More details released after devs allowed weeks to apply fixes We now know the remote code execution vulnerability in Apache Struts 2 disclosed back in November carries a near-maximum severity rating following the publication of the CVE.…
Microsoft closed out its Patch Tuesday updates for 2024 with fixes for a total of 72 security flaws spanning its software portfolio, including one that it said has been exploited in the wild
The zero-day (CVE-2024-49138), plus a worryingly critical unauthenticated RCE security vulnerability (CVE-2024-49112), are unwanted gifts for security admins this season.
Hackers are actively exploiting a zero-day vulnerability in Cleo managed file transfer software to breach corporate networks and conduct data theft attacks. [...]