6.5
MEDIUM
CVE-2023-20891
"VMware Tanzu Application Service - Information Disclosure Vulnerability"
Description

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.

INFO

Published Date :

July 26, 2023, 6:15 a.m.

Last Modified :

Aug. 3, 2023, 3:03 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2023-20891 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Vmware isolation_segment
2 Vmware tanzu_application_service_for_virtual_machines
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-20891.

URL Resource
https://www.vmware.com/security/advisories/VMSA-2023-0016.html Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-20891 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-20891 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Aug. 03, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://www.vmware.com/security/advisories/VMSA-2023-0016.html No Types Assigned https://www.vmware.com/security/advisories/VMSA-2023-0016.html Patch, Vendor Advisory
    Added CWE NIST CWE-532
    Added CPE Configuration OR *cpe:2.3:a:vmware:isolation_segment:*:*:*:*:*:*:*:* versions from (including) 2.11.0 up to (excluding) 2.11.35 *cpe:2.3:a:vmware:isolation_segment:*:*:*:*:*:*:*:* versions from (including) 2.13.0 up to (excluding) 2.13.20 *cpe:2.3:a:vmware:isolation_segment:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.13 *cpe:2.3:a:vmware:isolation_segment:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.0.4 *cpe:2.3:a:vmware:tanzu_application_service_for_virtual_machines:*:*:*:*:*:*:*:* versions from (including) 2.11.0 up to (excluding) 2.11.42 *cpe:2.3:a:vmware:tanzu_application_service_for_virtual_machines:*:*:*:*:*:*:*:* versions from (including) 2.13.0 up to (excluding) 2.13.24 *cpe:2.3:a:vmware:tanzu_application_service_for_virtual_machines:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.14 *cpe:2.3:a:vmware:tanzu_application_service_for_virtual_machines:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.0.5
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-20891 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-20891 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.01%

score

0.26114

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability