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security: update hashicorp pgp key #166

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7 changes: 7 additions & 0 deletions CHANGELOG.md
Original file line number Diff line number Diff line change
@@ -1,3 +1,10 @@
# 0.13.3 (Unreleased)

SECURITY:
- `tfinstall`: The HashiCorp PGP signing key has been rotated ([HCSEC-2021-12](https://discuss.hashicorp.com/t/hcsec-2021-12-codecov-security-event-and-hashicorp-gpg-key-exposure/23512)). This key is used to verify downloaded versions of Terraform. We recommend all users of terraform-exec upgrade to v0.13.3 for this security fix. [GH-166]

N.B. Versions of terraform-exec prior to v0.13.3 will continue to verify older versions of Terraform (up to and including v0.15.0) for a limited period. **Installation of Terraform using older versions of terraform-exec will stop working soon, and we recommend upgrading as soon as possible to avoid any interruption.**

# 0.13.2 (April 06, 2021)

BUG FIXES:
Expand Down
4 changes: 2 additions & 2 deletions tfinstall/download.go
Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,7 @@ func downloadWithVerification(ctx context.Context, tfVersion string, installDir
defer os.RemoveAll(sumsTmpDir)

sumsFilename := "terraform_" + tfVersion + "_SHA256SUMS"
sumsSigFilename := sumsFilename + ".sig"
sumsSigFilename := sumsFilename + ".72D7468F.sig"

sumsURL := fmt.Sprintf("%s/%s/%s", baseURL, tfVersion, sumsFilename)
sumsSigURL := fmt.Sprintf("%s/%s/%s", baseURL, tfVersion, sumsSigFilename)
Expand All @@ -65,7 +65,7 @@ func downloadWithVerification(ctx context.Context, tfVersion string, installDir
client.Dst = sumsTmpDir
err = client.Get()
if err != nil {
return "", fmt.Errorf("error fetching checksums: %s", err)
return "", fmt.Errorf("error fetching checksums at URL %s: %w", sumsURL, err)
}

client.Src = sumsSigURL
Expand Down
146 changes: 119 additions & 27 deletions tfinstall/pubkey.go
Original file line number Diff line number Diff line change
Expand Up @@ -2,31 +2,123 @@ package tfinstall

const hashicorpPublicKey = `-----BEGIN PGP PUBLIC KEY BLOCK-----

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=7pIB
-----END PGP PUBLIC KEY BLOCK-----`