Attack Chain

1. The attacker identifies a vulnerable Eclipse Equinox OSGi instance running version 3.7.2 or earlier.
2. The attacker connects to the exposed OSGi console port (default port may vary).
3. The attacker crafts a malicious payload containing a base64-encoded bash command.
4. The payload is structured with “fork” directives to ensure proper execution within the OSGi environment.
5. The attacker sends the crafted payload to the OSGi console interface via the network connection.
6. The Equinox OSGi instance processes the payload, decoding and executing the embedded bash command.
7. The executed command establishes a reverse shell connection back to the attacker’s controlled system.
8. The attacker gains remote access and can execute further commands, install malware, or exfiltrate sensitive data.

Impact

Successful exploitation of CVE-2023-54344 can lead to complete compromise of the affected Eclipse Equinox OSGi system. As an unauthenticated remote code execution vulnerability, it poses a critical risk to organizations using the vulnerable software. Attackers can gain full control over the system, potentially leading to data breaches, service disruption, or further lateral movement within the network. The absence of required authentication makes this vulnerability particularly dangerous.

Recommendation

• Upgrade Eclipse Equinox OSGi to a patched version greater than 3.7.2 to remediate CVE-2023-54344.
• Implement network segmentation to restrict access to the OSGi console port from untrusted networks.
• Deploy the Sigma rule “Detect Equinox OSGi Console Connections” to identify potential exploitation attempts via network connections.
• Deploy the Sigma rule “Detect Equinox OSGi Base64 Encoded Commands” to detect suspicious base64 encoded commands indicative of exploitation.