Please notice this workaround was posted to solve a temporary issue with HPE servers, currently HP allows customers with a registered server to access Service Pack for ProLiant (SPP). Please read and follow instructions on the HPE Support website.
If you try to download HP Service Pack for ProLiant (SPP) Version 2015.06.0 using the official HP Enterprise Support Website, it will redirects you to HP Service Pack for ProLiant (SPP) Version 2015.04.0 version. The HP Service Pack for ProLiant (SPP) is available for customers to download and use on products which are under an active warranty or an HP Support Agreement.
No matter what, if you use different logins, different browser’s, with or without an active warranty or an HP Support Agreement, it will blow your mind off.
So, until Hewlett-Packard patches their website, you can directly go to:
Which contains the SPP2015060.2015_0605.106.iso
This is the official url for the service pack and do not contain any malware or malicious software.
Please keep in mind to read release notes and documentation, when you download the ISO you are also accepting the Terms and Conditions of HP.