ECS: A limited number of objects are inaccessible, HTTP 403

Summary: A limited number of objects are inaccessible, HTTP 403.

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Symptoms

 A limited number of Objects in the bucket are inaccessible.
HTTP 403 is returned.

Cause

  • Object missing "READ" permissions.
  • Example of an object with correct permissions for a group of users: 
    admin@seapecsr3n1:/usr/share/s3curl> sudo ./s3curl.pl --id prod -- http://xxxx.com:9020/dsa-prod-jpg-master/216/80/611508612.jpg?acl | xmllint --format -
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   646  100   646    0     0   8190      0 --:--:-- --:--:-- --:--:--  8282
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<AccessControlPolicy xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
  <Owner>
    <ID>dsa-prod</ID>
    <DisplayName>dsa-prod</DisplayName>
  </Owner>
  <AccessControlList>
    <Grant>
      <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CanonicalUser">
        <ID>dsa-prod</ID>
        <DisplayName>dsa-prod</DisplayName>
      </Grantee>
      <Permission>FULL_CONTROL</Permission>
    </Grant>
    <Grant>
      <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="Group">
        <URI>http://acs.amazonaws.com/groups/global/AllUsers</URI>
      </Grantee>
      <Permission>READ</Permission>
    </Grant>
  </AccessControlList>
</AccessControlPolicy>
  • Example of object incorrect permissions: 
    admin@seapecsr3n1:/usr/share/s3curl> sudo ./s3curl.pl --id prod -- http://xxxx.com:9020/dsa-prod-jpg-master/272/35/642253272.jpg?acl | xmllint --format -
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   454  100   454    0     0   2072      0 --:--:-- --:--:-- --:--:--  2082
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<AccessControlPolicy xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
  <Owner>
    <ID>dsa-prod</ID>
    <DisplayName>dsa-prod</DisplayName>
  </Owner>
  <AccessControlList>
    <Grant>
      <Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CanonicalUser">
        <ID>dsa-prod</ID>
        <DisplayName>dsa-prod</DisplayName>
      </Grantee>
      <Permission>FULL_CONTROL</Permission>
    </Grant>
  </AccessControlList>
</AccessControlPolicy>
	
	 

Resolution

  • Add correct permissions to the object.
  • Example (base url) of adding "READ" permissions for single object: 
    curl -X PUT http://xxxx.com:9020/dsa-prod-jpg-master/272/35/642253272.jpg?acl -H "x-amz-grant-full-control: READ"
  • Reference the following AWS article for additional methods: 
    https://docs.aws.amazon.com/AmazonS3/latest/API/RESTObjectPUTacl.html
	
	 

Affected Products

ECS Appliance

Products

ECS Appliance, ECS Appliance Hardware Gen1 U-Series, ECS Appliance Software with Encryption, ECS Appliance Software without Encryption
Article Properties
Article Number: 000030765
Article Type: Solution
Last Modified: 02 July 2025
Version:  4
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