SUPEE-8788 Can't Loginto admin after logout

[MMazhar]

Hi,

Could you please help me in fixing following issue. I applied new patch supee-8788 this morning and it was installed successfully. I was able to flush the cache etc when I was already logged in to admin side.

I logged out then I could not login back to Magento admin side.

I am using Magento CE 1.9.1.1.

Thanks

Mazhar

[pikaminskimage]

Hello. One of the reasons we have seen is when running on PHP version earlier than 5.6 it has error with missing function hash_equals. There is a compatible function for older versions in the patch but if you have custom functions.php file (either customized or changed by some extension), it will not apply. See below:

In case you have an app/code/local version of Mage/Core/functions.php you'll have issue with the new hash_equals function: http://magento.stackexchange.com/a/140664/2380

[Visiture LLC]

SAVED THE **bleep** DAY.

[robbiefowler]

I am running 1.7.0.2 & php 5.4, but I do not have a core/functions.  I am having the same problem of not being able to relog in.  I reversed 8788 & still have issues.  I do not follow your fix. Thanks