Horizon Alert
Summary of the vulnerability and why it matters
OpenSLP within VMware ESXi has a flaw that could allow a malicious actor to execute code remotely. This could impact the integrity and availability of systems and data managed by the affected VMware products. The vulnerability requires the attacker to be on the same management network and have access to a specific port.
- OpenSLP service in VMware ESXi
- Use-after-free flaw
- Remote code execution and data impact
Attack Path
How an attacker could exploit the issue
A vulnerability in the OpenSLP service could allow a malicious actor to execute remote code. This attack requires access to port 427 on an affected VMware ESXi machine, typically from within the management network. Successful exploitation could lead to unauthorized control over the system.
- Network exposure required.
- Attacker accesses port 427.
- Triggering action causes code execution.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow a malicious actor to execute code remotely on affected systems. The threat is primarily directed at organizations using specific versions of VMware ESXi and Cloud Foundation. Successful exploitation could lead to a compromise of system integrity and confidentiality.
- Attacker skill level: High
- Required access: Network access to port 427
- Business risk: High, potential for remote code execution
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
The organization should address a critical vulnerability in the OpenSLP service within VMware ESXi. This flaw could permit a malicious actor in the management network to execute remote code. The potential for a successful attack, combined with the impact of remote code execution, signifies a significant business risk.
- Identify all affected VMware ESXi assets.
- Isolate any exposed management network systems.
- Apply vendor updates and verify implementation.
- Monitor systems for unusual activity.
