{"id":8708,"date":"2025-11-25T10:03:54","date_gmt":"2025-11-25T10:03:54","guid":{"rendered":"https:\/\/serisec.com\/index.php\/2025\/11\/25\/hashicorp-vault-vulnerability-allow-attackers-to-authenticate-to-vault-without-valid-credentials\/"},"modified":"2025-11-25T10:03:54","modified_gmt":"2025-11-25T10:03:54","slug":"hashicorp-vault-vulnerability-allow-attackers-to-authenticate-to-vault-without-valid-credentials","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2025\/11\/25\/hashicorp-vault-vulnerability-allow-attackers-to-authenticate-to-vault-without-valid-credentials\/","title":{"rendered":"HashiCorp Vault Vulnerability Allow Attackers to Authenticate to Vault Without Valid Credentials"},"content":{"rendered":"

HashiCorp Vault Vulnerability Allow Attackers to Authenticate to Vault Without Valid Credentials
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A critical security flaw has been discovered in HashiCorp\u2019s Vault Terraform Provider that could allow attackers to bypass authentication and access Vault without valid credentials.<\/p>\n

The vulnerability, tracked as CVE-2025-13357, affects organizations using LDAP authentication<\/a> with Vault. The security issue stems from an incorrect default configuration in Vault\u2019s Terraform Provider.<\/p>\n

Specifically, the provider set the\u00a0deny_null_bind\u00a0parameter to\u00a0false\u00a0by default for the LDAP authentication method.<\/p>\n

HashiCorp Vault Vulnerability<\/strong><\/h2>\n

This misconfiguration<\/a> created a dangerous security gap because the underlying LDAP server permitted unauthenticated connections.<\/p>\n

When exploited, this vulnerability allows threat actors to authenticate to Vault without providing legitimate credentials.<\/p>\n

This authentication bypass poses significant risks to organizations storing sensitive secrets, encryption keys<\/a>, and other critical data in Vault.<\/p>\n

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CVE ID<\/th>\nAffected Products<\/th>\nAffected Versions<\/th>\nImpact<\/th>\n<\/tr>\n<\/thead>\n
CVE-2025-13357<\/td>\nVault Terraform Provider<\/td>\nv4.2.0 to v5.4.0<\/td>\nAuthentication Bypass<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

HashiCorp has released fixes addressing this vulnerability. Organizations should take the following actions:<\/p>\n

Update to Vault Terraform Provider v5.5.0, which correctly sets the\u00a0deny_null_bind\u00a0parameter to\u00a0true\u00a0by default.<\/p>\n

Additionally, upgrade to Vault Community Edition 1.21.1 or Vault Enterprise versions 1.21.1, 1.20.6, 1.19.12, or 1.16.28.<\/p>\n

Ensure the\u00a0deny_null_bind\u00a0parameter is explicitly set to\u00a0true\u00a0in LDAP auth method configurations.<\/p>\n

Organizations using older provider versions should explicitly set the parameter in their Terraform files and apply the changes immediately.<\/p>\n

The patched<\/a> Vault versions no longer accept empty password strings, effectively preventing unauthenticated LDAP connections via the authentication method.<\/p>\n

HashiCorp has announced<\/a> that this outdated parameter will be removed in future releases. This vulnerability was identified by a third-party researcher who responsibly disclosed it to HashiCorp.<\/p>\n

Organizations using Vault with LDAP authentication should prioritize applying these security updates to protect their infrastructure from potential exploitation.<\/p>\n

Follow us on Google News<\/a>, LinkedIn<\/a>, and X<\/a> for daily cybersecurity updates. Contact us<\/a> to feature your stories.<\/strong><\/p>\n

The post HashiCorp Vault Vulnerability Allow Attackers to Authenticate to Vault Without Valid Credentials<\/a> appeared first on Cyber Security News<\/a>.<\/p>\n<\/div>\n

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HashiCorp Vault Vulnerability Allow Attackers to Authenticate to Vault Without Valid Credentials A critical security flaw has been discovered in HashiCorp\u2019s Vault Terraform Provider that could allow attackers to bypass authentication and access Vault without valid credentials. The vulnerability, tracked as CVE-2025-13357, affects organizations using LDAP authentication with Vault. The security issue stems from an […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2015,129,63,648],"tags":[130],"class_list":["post-8708","post","type-post","status-publish","format-standard","hentry","category-cve-vulnerabilities","category-cyber-security","category-cyber-security-news","category-vulnerability-news","tag-cyber-security-news"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/8708"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=8708"}],"version-history":[{"count":0,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/8708\/revisions"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=8708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=8708"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=8708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}