Horizon Alert
Summary of the vulnerability and why it matters
Rejetto HTTP File Server is vulnerable to a template injection flaw. This vulnerability allows an unauthenticated attacker to execute arbitrary commands on the affected system. The potential business impact includes unauthorized access and control of impacted systems.
- Vulnerable Rejetto HTTP File Server
- Template injection allows command execution
- Unauthorized system access and control
Attack Path
How an attacker could exploit the issue
This vulnerability allows an unauthenticated attacker to execute arbitrary commands on a vulnerable system by sending a specially crafted HTTP request. The attack leverages a template injection flaw within the Rejetto HTTP File Server, which is designed to be accessible over the network. Successful exploitation could lead to the compromise of the affected system and potential disruption of services.
- Server exposed to network.
- Attacker sends crafted request.
- Commands execute on server.
Live Threat
Current exploitation, exposure, and threat context
The Rejetto HTTP File Server has a critical vulnerability that allows unauthenticated attackers to execute arbitrary commands remotely. This exploit is achievable through a specially crafted HTTP request. Given that the affected version is no longer supported, organizations may face significant risks if they continue to use it without applying available mitigations or discontinuing its use.
- Likely attacker skill level: Low
- Required access or conditions: Network access
- Business risk or urgency: High
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
An unauthenticated remote attacker can exploit a template injection vulnerability in Rejetto HTTP File Server to execute arbitrary commands. This impacts the confidentiality, integrity, and availability of affected systems. Due to the critical severity and documented exploitation, immediate action is necessary.
- Find assets running the affected software.
- Isolate or block network access to these assets.
- Address the vulnerability by applying vendor fixes or discontinuing use, then validate.
