CVE-2023-51662 Snowflake Connector .NET does not properly check the Certificate Revocation List (CRL)
The Snowflake .NET connector fails to check Certificate Revocation Lists by default, allowing attackers to bypass TLS certificate validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-51662?
CVE-2023-51662 is a medium-severity vulnerability in snowflakedb snowflake-connector-net, published on 22 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Snowflake .NET driver provides an interface to the Microsoft .NET open source software framework for developing applications. Snowflake recently received a report about a vulnerability in the Snowflake Connector .NET where the checks against the Certificate Revocation List (CRL) were not performed where the insecureMode flag was set to false, which is the default setting. The vulnerability affects versions between 2.0.25 and 2.1.4 (inclusive). Snowflake fixed the issue in version 2.1.5.
Weakness: CWE-295
Which versions are affected by CVE-2023-51662?
2 open source packages ship an affected version, including Snowflake.Data. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
Snowflake.Data NuGet | From 2.0.25 | 2.1.5 |
Snowflake.Data NuGet | From 2.0.25 | 2.1.5 |
Products include Snowflake Snowflake Connector.
How do I fix CVE-2023-51662?
Upgrade Snowflake.Data to 2.1.5 or later.
Is CVE-2023-51662 being exploited?
There is no known exploitation of CVE-2023-51662 in the wild and no public exploit code.
Other vulnerabilities in snowflakedb snowflake-connector-net
- CVE-2023-34230 Snowflake Connector vulnerable to Command Injection
- CVE-2023-34232 Snowflake NodeJS Driver vulnerable to Command Injection
- CVE-2023-34233 Snowflake Python Connector vulnerable to Command Injection
- CVE-2025-24793 Snowflake Connector for Python has an SQL Injection in write_pandas
- CVE-2025-24794 The Snowflake Connector for Python uses insecure deserialization of the OCSP response cache
Sources
Also known as GHSA-hwcc-4cv8-cf3h.