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6 changes: 6 additions & 0 deletions cmd/admin-handlers-users.go
Original file line number Diff line number Diff line change
Expand Up @@ -1719,6 +1719,12 @@ func (a adminAPIHandlers) AddCannedPolicy(w http.ResponseWriter, r *http.Request
}
setReqInfoPolicyName(ctx, policyName)

// Reject policy names with commas.
if strings.Contains(policyName, ",") {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrPolicyInvalidName), r.URL)
return
}

// Error out if Content-Length is missing.
if r.ContentLength <= 0 {
writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrMissingContentLength), r.URL)
Expand Down
6 changes: 6 additions & 0 deletions cmd/admin-handlers-users_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -716,6 +716,12 @@ func (s *TestSuiteIAM) TestCannedPolicies(c *check) {
c.Fatalf("policy info err: %v", err)
}

// Check that policy with comma is rejected.
err = s.adm.AddCannedPolicy(ctx, "invalid,policy", policyBytes)
if err == nil {
c.Fatalf("invalid policy created successfully")
}

infoStr := string(info)
if !strings.Contains(infoStr, `"s3:PutObject"`) || !strings.Contains(infoStr, ":"+bucket+"/") {
c.Fatalf("policy contains unexpected content!")
Expand Down
6 changes: 6 additions & 0 deletions cmd/api-errors.go
Original file line number Diff line number Diff line change
Expand Up @@ -213,6 +213,7 @@ const (
ErrPolicyAlreadyAttached
ErrPolicyNotAttached
ErrExcessData
ErrPolicyInvalidName
// Add new error codes here.

// SSE-S3/SSE-KMS related API errors
Expand Down Expand Up @@ -561,6 +562,11 @@ var errorCodes = errorCodeMap{
Description: "More data provided than indicated content length",
HTTPStatusCode: http.StatusBadRequest,
},
ErrPolicyInvalidName: {
Code: "PolicyInvalidName",
Description: "Policy name may not contain comma",
HTTPStatusCode: http.StatusBadRequest,
},
ErrPolicyTooLarge: {
Code: "PolicyTooLarge",
Description: "Policy exceeds the maximum allowed document size.",
Expand Down
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