5.5
MEDIUM
CVE-2023-3747
Cisco WARP Date and Time Manipulation Denial of Service
Description

Zero Trust Administrators have the ability to disallow end users from disabling WARP on their devices. Override codes can also be created by the Administrators to allow a device to temporarily be disconnected from WARP, however, due to lack of server side validation, an attacker with local access to the device, could extend the maximum allowed disconnected time of WARP client granted by an override code by changing the date & time on the local device where WARP is running.

INFO

Published Date :

Sept. 7, 2023, 1:15 p.m.

Last Modified :

Sept. 13, 2023, 7:29 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2023-3747 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 Cloudflare warp
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-2023-3747.

URL Resource
https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/configure-warp/warp-settings/#retrieve-the-override-code Technical Description
https://play.google.com/store/apps/details?id=com.cloudflare.onedotonedotonedotone Product

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-2023-3747 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-3747 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]

    Sep. 13, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/configure-warp/warp-settings/#retrieve-the-override-code No Types Assigned https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/configure-warp/warp-settings/#retrieve-the-override-code Technical Description
    Changed Reference Type https://play.google.com/store/apps/details?id=com.cloudflare.onedotonedotonedotone No Types Assigned https://play.google.com/store/apps/details?id=com.cloudflare.onedotonedotonedotone Product
    Added CWE NIST CWE-565
    Added CPE Configuration OR *cpe:2.3:a:cloudflare:warp:6.29:*:*:*:*:android:*:*
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-2023-3747 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-2023-3747 weaknesses.

CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-39: Manipulating Opaque Client-based Data Tokens Manipulating Opaque Client-based Data Tokens CAPEC-226: Session Credential Falsification through Manipulation Session Credential Falsification through Manipulation CAPEC-21: Exploitation of Trusted Identifiers Exploitation of Trusted Identifiers CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-162: Manipulating Hidden Fields Manipulating Hidden Fields CAPEC-202: Create Malicious Client Create Malicious Client CAPEC-207: Removing Important Client Functionality Removing Important Client Functionality CAPEC-208: Removing/short-circuiting 'Purse' logic: removing/mutating 'cash' decrements Removing/short-circuiting 'Purse' logic: removing/mutating 'cash' decrements CAPEC-383: Harvesting Information via API Event Monitoring Harvesting Information via API Event Monitoring CAPEC-384: Application API Message Manipulation via Man-in-the-Middle Application API Message Manipulation via Man-in-the-Middle CAPEC-385: Transaction or Event Tampering via Application API Manipulation Transaction or Event Tampering via Application API Manipulation CAPEC-386: Application API Navigation Remapping Application API Navigation Remapping CAPEC-387: Navigation Remapping To Propagate Malicious Content Navigation Remapping To Propagate Malicious Content CAPEC-388: Application API Button Hijacking Application API Button Hijacking
Exploit Prediction

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

0.18 }} 0.02%

score

0.55352

percentile

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