Fix broken interactions between glob_domains and wildcards #14235
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From Vault v1.8.0 onwards, we would incorrectly disallow issuance of a wildcard certificate when allow_glob_domain was enabled with a multi-part glob domain in allowed_domains (such as *.*.foo) when attempting to issue a wildcard for a subdomain (such as *.bar.foo). This fixes that by reverting an errant change in the case insensitivity patch. Here, when validating against a very powerful glob construct, we leave the wildcard prefix (*.) from the raw common_name element, to allow multi-part globs to match wildcard entries. It is important to note that "sanitizedName" is an incorrect variable naming here. Wildcard parsing (per RFC 6125 which supercedes RFC 2818) must be in the left-most segment of the domain, but we lack validation to ensure no internal wildcards exist. Additionally per item 3 of section 6.4.3 of RFC 6125, wildcards MAY be internal to a domain segment, in which case sanitizedName again leaves the wildcard in place. Resolves: hashicorp#13530 Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
As pointed out by Steven Clark (author of the removed conditional in 70012cd), this is duplicate from the now-reintroduced comparison against name (versus the erroneous sanitizedName at the time of his commit). This is a reversion of the changes to builtin/logical/pki/cert_util.go, but keeping the additional valuable test cases. Co-authored-by: Steven Clark <steven.clark@hashicorp.com> Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
This commit introduces multi-dimensional testing of PKI secrets engine's role-based certificate issuance with the intent of preventing future regressions. Here, dimensions of testing include: - AllowedDomains to decide which domains are approved for issuance, - AllowBareDomains to decide if raw entries of AllowedDomains are permitted, - AllowGlobDomains to decide if glob patterns in AllowedDomains are parsed, - AllowSubdomains to decide if subdomains of AllowedDomains are permitted, - AllowLocalhost to decide if localhost identifiers are permitted, and - CommonName of the certificate to request. Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>
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Thanks @kitography! |
This was referenced Feb 23, 2022
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As documented in #13530, the behavior recently changed in Vault 1.8.0 as a result of an earlier commit addressing case sensitivity during issuance, preventing some certificates from being issued when they should've been.
We revert this behavior change and add regression tests for various issuance scenarios.
Resolves: #13530