ZDI-22-326: (Pwn2Own) Lexmark MC3224i setuid Local Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Lexmark MC3224i printers. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the permissions set on root-owned service files. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Lexmark MC3224i |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-326?
The severity of ZDI-22-326 is high due to the potential for local privilege escalation on affected Lexmark MC3224i printers.
How do I fix ZDI-22-326?
To fix ZDI-22-326, update your Lexmark MC3224i printer firmware to the latest version as recommended by Lexmark.
Who can exploit ZDI-22-326?
ZDI-22-326 can be exploited by local attackers who have already gained the ability to execute low-privileged code on the printer.
What systems are affected by ZDI-22-326?
ZDI-22-326 specifically affects Lexmark MC3224i printers that have not yet received a security update addressing this vulnerability.
What type of vulnerability is ZDI-22-326?
ZDI-22-326 is a local privilege escalation vulnerability that allows attackers to gain elevated rights on the targeted Lexmark printers.
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