CVE-2025-13357: terraform provider — Fix

Description

Vault’s Terraform Provider incorrectly set the default deny_null_bind parameter for the LDAP auth method to false by default, potentially resulting in an insecure configuration. If the underlying LDAP server allowed anonymous or unauthenticated binds, this could result in authentication bypass. This vulnerability, CVE-2025-13357, is fixed in Vault Terraform Provider v5.5.0.

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CVSS v3.1 Score

7.4

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness Type (CWE)

CWE-1188 CWE-1188

Affected Products

Vendor	Product	Versions
hashicorp	terraform_provider	4.2.0 — 5.5.0

References

Advisories & Patches

https://discuss.hashicorp.com/t/hcsec-2025-33-vault-terraform-provider-applied-incorrect-defaults-for-ldap-auth-method/76822

Frequently Asked Questions

What is CVE-2025-13357? +

Vault’s Terraform Provider incorrectly set the default deny_null_bind parameter for the LDAP auth method to false by default, potentially resulting in an insecure configuration. If the underlying LDAP server allowed anonymous or unauthenticated binds, this could result in authentication bypass. This vulnerability, CVE-2025-13357, is fixed in Vault Terraform Provider v5.5.0. It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2025-13357? +

CVE-2025-13357 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-13357? +

CVE-2025-13357 affects products from hashicorp, specifically: terraform_provider. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-13357? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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