#VU79697 Improper Privilege Management in QEMU - CVE-2023-0664

Vulnerability identifier: #VU79697

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-0664

CWE-ID: CWE-269

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
QEMU
Client/Desktop applications / Virtualization software

Vendor: QEMU

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper privilege management in the QEMU Guest Agent service for Windows. A local user can manipulate the QEMU Guest Agent's Windows installer via repair custom action and escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

QEMU: before 8.0.0

---

External links
https://bugzilla.redhat.com/show_bug.cgi?id=2167423
https://gitlab.com/qemu-project/qemu/-/commit/88288c2a51faa7c795f053fc8b31b1c16ff804c5
https://lists.nongnu.org/archive/html/qemu-devel/2023-03/msg01445.html
https://gitlab.com/qemu-project/qemu/-/commit/07ce178a2b0768eb9e712bb5ad0cf6dc7fcf0158
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEOC7SRJWLZSXCND2ADFW6C76ZMTZLE4/
https://security.netapp.com/advisory/ntap-20230517-0005/

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.