CVE-2023-20891
First published: Wed Jul 26 2023(Updated: )
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.
Credit: security@vmware.com security@vmware.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Vmware Isolation Segment | >=2.11.0<2.11.35 | |
| Vmware Isolation Segment | >=2.13.0<2.13.20 | |
| Vmware Isolation Segment | >=3.0.0<3.0.13 | |
| Vmware Isolation Segment | >=4.0.0<4.0.4 | |
| Vmware Tanzu Application Service For Virtual Machines | >=2.11.0<2.11.42 | |
| Vmware Tanzu Application Service For Virtual Machines | >=2.13.0<2.13.24 | |
| Vmware Tanzu Application Service For Virtual Machines | >=3.0.0<3.0.14 | |
| Vmware Tanzu Application Service For Virtual Machines | >=4.0.0<4.0.5 |
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Frequently Asked Questions
What is CVE-2023-20891?
CVE-2023-20891 is an information disclosure vulnerability in VMware Tanzu Application Service for VMs and Isolation Segment.
What is the severity of CVE-2023-20891?
CVE-2023-20891 has a severity rating of 6.5 (Medium).
How does CVE-2023-20891 affect VMware Tanzu Application Service for VMs?
CVE-2023-20891 allows a malicious non-admin user with access to the platform system audit logs to access hex encoded CF API credentials.
How can I fix CVE-2023-20891?
To fix CVE-2023-20891, upgrade to a version of VMware Tanzu Application Service for VMs or Isolation Segment that is not affected by the vulnerability.
Where can I find more information about CVE-2023-20891?
More information about CVE-2023-20891 can be found in the VMWare security advisory VMSA-2023-0016.
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- version/vmware tanzu application service for virtual machines/2.13.0
- version/vmware tanzu application service for virtual machines/3.0.0
- version/vmware tanzu application service for virtual machines/4.0.0