CVE-2023-28800

Output encoding missing in redrurl parameter

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

When using local accounts for administration, the redirect url parameter was not encoded correctly, allowing for an XSS attack providing admin login.

*Credits: Tesla Red Team

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-03-23 CVE Reserved
2023-06-22 CVE Published
2024-07-24 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

CAPEC-63: Cross-Site Scripting (XSS)

References (6)

URL	Tag	Source
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=Linux&applicable_version=1.4&deployment_date=2022-10-31&id=1420246	Release Notes
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Android&applicable_version=1.10.2&deployment_date=2023-03-09&id=1447706	Release Notes
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=Chrome%20OS&applicable_version=1.10.1&deployment_date=2023-03-10&id=1447771	Release Notes
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=iOS&applicable_version=1.9.3&deployment_date=2023-03-03&id=1447071	Release Notes
https://help.zscaler.com/client-connector/client-connector-app-release-summary-2023?applicable_category=macOS&applicable_version=3.9&deployment_date=2023-01-25&id=1443546	Release Notes
https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021?applicable_category=Windows&applicable_version=3.7&deployment_date=2021-11-26&id=1386541	Release Notes

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

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"				< 1.4 Search vendor "Zscaler" for product "Client Connector" and version " < 1.4"		linux		Affected
Zscaler Search vendor "Zscaler"		Client Connector Search vendor "Zscaler" for product "Client Connector"				< 1.9.3 Search vendor "Zscaler" for product "Client Connector" and version " < 1.9.3"		iphone_os		Affected
Zscaler Search vendor "Zscaler"		Client Connector Search vendor "Zscaler" for product "Client Connector"				< 1.10.1 Search vendor "Zscaler" for product "Client Connector" and version " < 1.10.1"		chrome_os		Affected
Zscaler Search vendor "Zscaler"		Client Connector Search vendor "Zscaler" for product "Client Connector"				< 1.10.2 Search vendor "Zscaler" for product "Client Connector" and version " < 1.10.2"		android		Affected
Zscaler Search vendor "Zscaler"		Client Connector Search vendor "Zscaler" for product "Client Connector"				< 3.7 Search vendor "Zscaler" for product "Client Connector" and version " < 3.7"		windows		Affected
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"		macos		Affected