Technical Tag

php

4 related articles.

Notes on PHP's register_argc_argv Configuration

0x01 Preface During a recent Dianfeng Geek CTF, I encountered a web challenge hinting at register_argc_argv but could not solve it. I later asked yzddmr6 and searched Chinese security research, finding little. This PHP setting seemed worth documenting. My practical experience is limited, so additions are welcome…

Getting a Shell from a Low-Privilege FastAdmin Admin Account

0x01 Preface. Xu recently pointed out a path from a low-privilege FastAdmin backend account to a shell. This article analyzes it. Affected versions: V1.0.0.20191212 beta and earlier. 0x02 Authorization. The main difficulty is that low-privilege users cannot access shell-related features…

Analyzing a Front-End Shell Upload Vulnerability in the Latest FastAdmin

Affected version: V1.0.0.20200506 beta, the latest release. Requirement: the member center must be enabled in /application/config.php. Vulnerability analysis: lines 58–67 of /application/index/User.php. user_request_empty is a developer hook and can be ignored; the important part is return $thi…