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CVE-2023-37679 is a critical unauthenticated remote command execution vulnerability in NextGen Mirth Connect versions up to and including 4.3.0. The flaw resides in an internal servlet filter within Mirth Connect's codebase and is only exploitable when the Java Runtime Environment (JRE) version 8.0 or lower is used. The vulnerability allows remote attackers to execute arbitrary commands on the hosting server across all supported operating systems (Linux, Windows, MacOS). By default, Mirth Connect servers run with administrative privileges, exacerbating the impact of successful exploitation. The vulnerability is not due to a third-party component but is intrinsic to Mirth Connect's own code.
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2 valid exploits after Mallory filtered fakes, detection scripts, and README-only repos (1 hidden).
Repository contains a standalone Python exploit for NextGen Mirth Connect targeting CVE-2023-43208 (and referencing CVE-2023-37679). The main file (CVE-2023-43208.py) builds an XML payload that leverages a Java gadget chain (Apache Commons Collections4 + Commons Lang3 EventUtils invocation handler) to invoke java.lang.Runtime.exec() on the server. It sends the payload via an unauthenticated HTTP POST to the Mirth Connect API endpoint /api/users with headers Content-Type: application/xml and X-Requested-With: OpenAPI, with TLS verification disabled. Capabilities: - Arbitrary command execution (one-shot) on the target host; optional Windows command wrapping using cmd.exe /c. - Reverse shell mode: if -lh/-lp are provided, it auto-generates a bash /dev/tcp reverse shell command to connect back to the attacker. - Includes a simple built-in TCP listener (binds 0.0.0.0:<port>) to accept a single incoming connection and print received data. Repository structure: - CVE-2023-43208.py: exploit implementation, CLI parsing, payload generation, HTTP delivery, optional listener. - README.md: high-level vulnerability description and affected versions (claims up to 4.4.0; fixed in 4.4.1). - use.txt: usage examples for command execution and reverse shell (notes using netcat externally; script also has its own listener).
Repository contains a single Python exploit (exploit.py) plus documentation (README.md) targeting CVE-2023-43208: a pre-auth remote code execution vulnerability in NextGen Healthcare Mirth Connect versions < 4.4.1. The exploit sends a crafted XStream XML payload to the unauthenticated POST /api/users endpoint. The payload is a deserialization gadget chain that bypasses the prior denylist-based fix for CVE-2023-37679 by using org.apache.commons.lang3.event.EventUtils$EventBindingInvocationHandler (dynamic proxy handler) together with Apache Commons Collections4 transformers (ChainedTransformer/ConstantTransformer/InvokerTransformer) to invoke java.lang.Runtime.getRuntime().exec(command). Key capabilities implemented via argparse subcommands: - check: fingerprints the target (uses /api/server/version) and assesses likely vulnerability. - exec: performs blind command execution (no command output expected). - shell: triggers a reverse shell back to attacker-supplied --lhost/--lport and includes listener handling (socket/select/threading indicated by imports and CLI options). - scan: multi-target scanning from a file with configurable thread count and optional output of vulnerable hosts. Notable operational details: uses Python requests with TLS warnings disabled (suggesting self-signed certs common on :8443), sets headers including Content-Type: application/xml and X-Requested-With: OpenAPI, and builds/escapes XML to embed arbitrary commands safely into the serialized gadget chain.
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