Medium severity · published Sep 7, 2023
CVE-2023-3747
Insufficient Validation on Override Codes for Always-Enabled WARP Mode
5.5
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WC
WARP Client · Cloudflare
before 6.29 · source: vendor
WA
Warp · Cloudflare
6.29 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3747
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3747
Technical Description
https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/configure-warp/warp-settings/#retrieve-the-override-code
Product
https://play.google.com/store/apps/details?id=com.cloudflare.onedotonedotonedotone
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