Merge pull request #161 from Ostorlab/feature/cve_2024_55956

Add version detection for cleo  cve-2024-55956

agent/exploits/cve_2024_55956.py

@@ -0,0 +1,41 @@
+"""Agent Asteroid implementation for CVE-2024-55956"""
+
+import re
+
+from packaging import version
+
+from agent import definitions
+from agent import exploits_registry
+from agent.exploits import webexploit
+
+VERSION_PATTERN = re.compile(
+    r"(?:VLTrader|Harmony|LexiCom)/((?:[0-4](?:\.\d+){0,3})|5(?:\.[0-7](?:\.\d{1,2}){0,2})?|5\.8(?:\.0(?:\.(?:0|[1-9]|1[0-9]|2[0-3]))?)?)\s*\("
+)
+MAX_VULNERABLE_VERSION = version.parse("5.8.0.23")
+MIN_VULNERABLE_VERSION = version.parse("0.0.0")
+VULNERABILITY_TITLE = "Cleo Harmony, VLTrader, and LexiCom - Arbitrary Command Execution via Autorun Directory"
+VULNERABILITY_REFERENCE = "CVE-2024-55956"
+VULNERABILITY_DESCRIPTION = (
+    "In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before "
+    "5.8.0.24, an unauthenticated user can import and execute arbitrary Bash or PowerShell "
+    "commands on the host system by leveraging the default settings of the Autorun directory."
+)
+RISK_RATING = "CRITICAL"
+
+
+@exploits_registry.register
+class CVE202455956Exploit(webexploit.WebExploit):
+    accept_request = definitions.Request(method="GET", path="/")
+    check_request = definitions.Request(method="GET", path="/")
+    accept_pattern = [re.compile(r"Cleo (VLTrader|Harmony|LexiCom)/[\d.]+")]
+    version_pattern = VERSION_PATTERN
+    vuln_ranges = [
+        definitions.VulnRange(MIN_VULNERABLE_VERSION, MAX_VULNERABLE_VERSION)
+    ]
+
+    metadata = definitions.VulnerabilityMetadata(
+        title=VULNERABILITY_TITLE,
+        description=VULNERABILITY_DESCRIPTION,
+        reference=VULNERABILITY_REFERENCE,
+        risk_rating=RISK_RATING,
+    )

tests/exploits/cve_2024_55956_test.py

@@ -0,0 +1,74 @@
+"""Unit tests for Agent Asteroid: CVE-2024-55956"""
+
+import requests_mock as req_mock
+from ostorlab.agent.mixins import agent_report_vulnerability_mixin as vuln_mixin
+
+from agent import definitions
+from agent.exploits import cve_2024_55956
+
+
+def testCVE202455956_whenVulnerable_reportFinding(
+    requests_mock: req_mock.mocker.Mocker,
+) -> None:
+    """CVE-2024-55956 unit test: case when target is vulnerable."""
+    requests_mock.get(
+        "http://localhost:80/",
+        text="Cleo VLTrader/5.8.0.22 (Build 12345)",
+        status_code=200,
+    )
+    exploit_instance = cve_2024_55956.CVE202455956Exploit()
+    target = definitions.Target("http", "localhost", 80)
+
+    accept = exploit_instance.accept(target)
+    vulnerabilities = exploit_instance.check(target)
+
+    assert accept is True
+    assert len(vulnerabilities) > 0
+    vulnerability = vulnerabilities[0]
+    assert (
+        vulnerability.entry.title
+        == "Cleo Harmony, VLTrader, and LexiCom - Arbitrary Command Execution via Autorun Directory"
+    )
+    assert vulnerability.technical_detail == (
+        "http://localhost:80 is vulnerable to CVE-2024-55956, Cleo Harmony, VLTrader, and LexiCom -"
+        " Arbitrary Command Execution via Autorun Directory"
+    )
+    assert vulnerability.risk_rating == vuln_mixin.RiskRating.CRITICAL
+
+
+def testCVE202455956_whenSafe_reportNothing(
+    requests_mock: req_mock.mocker.Mocker,
+) -> None:
+    """CVE-2024-55956 unit test: case when target is safe."""
+    requests_mock.get(
+        "http://localhost:80/",
+        text="Cleo VLTrader/5.8.0.24 (Build 12345)",
+        status_code=200,
+    )
+    exploit_instance = cve_2024_55956.CVE202455956Exploit()
+    target = definitions.Target("http", "localhost", 80)
+
+    accept = exploit_instance.accept(target)
+    vulnerabilities = exploit_instance.check(target)
+
+    assert accept is True
+    assert len(vulnerabilities) == 0
+
+
+def testCVE202455956_whenTargetNotCleoProduct_reportNothing(
+    requests_mock: req_mock.mocker.Mocker,
+) -> None:
+    """CVE-2024-55956 unit test: case when target is not a Cleo product."""
+    requests_mock.get(
+        "http://localhost:80/",
+        text="Not Found",
+        status_code=404,
+    )
+    exploit_instance = cve_2024_55956.CVE202455956Exploit()
+    target = definitions.Target("http", "localhost", 80)
+
+    accept = exploit_instance.accept(target)
+    vulnerabilities = exploit_instance.check(target)
+
+    assert accept is False
+    assert len(vulnerabilities) == 0