Vulnerability Details : CVE-2023-34048
vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger an out-of-bounds write potentially leading to remote code execution.
Vulnerability category: Execute code
Products affected by CVE-2023-34048
- cpe:2.3:a:vmware:vcenter_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update1d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update2d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3d:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3e:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3f:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3g:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3h:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3j:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3k:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3l:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3i:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:update1:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:update1a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:a:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:c:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:-:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3m:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:update1b:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:7.0:update3n:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:8.0:update1c:*:*:*:*:*:*
CVE-2023-34048 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
VMware vCenter Server Out-of-Bounds Write Vulnerability
CISA required action:
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA description:
VMware vCenter Server contains an out-of-bounds write vulnerability in the implementation of the DCERPC protocol that allows an attacker to conduct remote code execution.
Notes:
https://www.vmware.com/security/advisories/VMSA-2023-0023.html; https://nvd.nist.gov/vuln/detail/CVE-2023-34048
Added on
2024-01-22
Action due date
2024-02-12
Exploit prediction scoring system (EPSS) score for CVE-2023-34048
43.86%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 97 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-34048
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
VMware |
CWE ids for CVE-2023-34048
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2023-34048
-
https://www.vicarius.io/vsociety/posts/understanding-cve-2023-34048-a-zero-day-out-of-bound-write-in-vcenter-server
Understanding CVE-2023-34048, A zero-day out-of-bound write in vCenter server - vsocietyExploit;Third Party Advisory
-
https://www.vmware.com/security/advisories/VMSA-2023-0023.html
VMSA-2023-0023Vendor Advisory
Jump to