// For flags

CVE-2023-28803

Traffic being bypassed by ZCC by configuring synthetic IP range as local network

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

An authentication bypass by spoofing of a device with a synthetic IP address is possible in Zscaler Client Connector on Windows, allowing a functionality bypass. This issue affects Client Connector: before 3.9.

Es posible omitir la autenticación mediante la suplantación de un dispositivo con una dirección IP sintética en Zscaler Client Connector en Windows, lo que permite omitir la funcionalidad. Este problema afecta a Client Connector: versiones anteriores a 3.9.

*Credits: Regions Bank Red Team
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-03-23 CVE Reserved
  • 2023-10-23 CVE Published
  • 2023-10-27 EPSS Updated
  • 2024-09-11 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-290: Authentication Bypass by Spoofing
CAPEC
  • CAPEC-554: Functionality Bypass
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Zscaler
Search vendor "Zscaler"
 Client Connector
Search vendor "Zscaler" for product "Client Connector"
 < 3.9
Search vendor "Zscaler" for product "Client Connector" and version " < 3.9"
windows
Affected