Information disclosure in VMware Isolation Segment
CVE-2023-20891
The VMware Tanzu Application Service for VMs and Isolation Segment contain an information disclosure vulnerability due to the logging of credentials in hex encoding in platform system audit logs. A malicious non-admin user who has access to the platform system audit logs can access hex encoded CF API admin credentials and can push new malicious versions of an application. In a default deployment non-admin users do not have access to the platform system audit logs.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- VMware Isolation Segment — versions 4.0.x, 3.0.x, 2.13.x
- VMware Isolation Segment
- VMware Tanzu Application Service For Virtual Machines
- VMware Tanzu Application Service For Vms — versions 4.0.x, 3.0.x, 2.13.x
Weakness classification (CWE)
References
- www.vmware.com/security/advisories/VMSA-2023-0016.html (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2023-20891?
- CVE-2023-20891 is a medium-severity vulnerability in VMware Isolation Segment, classified under Insertion of Sensitive Information into Log File. CVSS score: 6.5/10. Published 2023-07-26.
- How severe is CVE-2023-20891?
- Medium severity. CVSS v3 base score is 6.5 out of 10.