ZDI-CAN-12891: QNAP NAS Malware Remover Command Injection Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of QNAP NAS. Authentication is required to exploit this vulnerability. The specific flaw exists within the Malware Remover application. A crafted TAR file in the file system can trigger execution of a system call composed from a user-supplied string. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the admin user.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QNAP NAS |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-12891?
The severity of ZDI-CAN-12891 is considered high due to the potential for local privilege escalation on QNAP NAS devices.
How do I fix ZDI-CAN-12891?
To fix ZDI-CAN-12891, ensure that your QNAP NAS software is updated to the latest version provided by QNAP that addresses this vulnerability.
Who is affected by ZDI-CAN-12891?
ZDI-CAN-12891 affects local users with authentication access to QNAP NAS devices running the vulnerable Malware Remover application.
What type of attack is associated with ZDI-CAN-12891?
ZDI-CAN-12891 allows local attackers to escalate their privileges by exploiting a flaw in the Malware Remover application.
Is authentication required to exploit ZDI-CAN-12891?
Yes, authentication is required to exploit ZDI-CAN-12891, as it involves local access to the affected QNAP NAS.
- agent/references
- agent/softwarecombine
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-592
- alias/ZDI-CAN-12891
- alias/CVE-2020-36198
- agent/software-canonical-lookup
- agent/title
- agent/severity
- agent/type
- agent/event
- agent/description
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- vendor/qnap
- canonical/qnap nas