CVE-2023-2861
Qemu: 9pfs: improper access control on special files
Severity Score
7.1
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track*
*SSVC
Descriptions
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.
Se encontró una falla en la implementación del sistema de archivos de paso 9p (9pfs) en QEMU. El servidor 9pfs no prohibía la apertura de archivos especiales en el lado del host, lo que potencialmente permitía que un cliente malicioso escapara del árbol 9p exportado creando y abriendo un archivo de dispositivo en la carpeta compartida.
*Credits:
Red Hat would like to thank Jietao Xiao, Jinku Li, Wenbo Shen, and Yanwu Shen for reporting this issue.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Track*
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-05-24 CVE Reserved
- 2023-12-06 CVE Published
- 2024-01-31 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-284: Improper Access Control
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html |
|
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| https://security.netapp.com/advisory/ntap-20240125-0005 |
|
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| https://security.netapp.com/advisory/ntap-20240229-0002 |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2219266 | 2024-03-11 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-2861 | 2024-03-11 |