This prevents users from seeing other processes' info.
The string fetch-url-file-3A-2F-2F-2Fproc-2F1-2Fenviron typically relates to a Local File Inclusion (LFI) Server-Side Request Forgery (SSRF) vulnerability . The hex-encoded portion ( 3A-2F-2F-2F ) decodes to , making the target path file:////proc/1/environ 1. What is /proc/1/environ On Linux systems, the filesystem provides an interface to kernel data structures fetch-url-file-3A-2F-2F-2Fproc-2F1-2Fenviron
:
This file contains the environment variables set when the process was started, delimited by null bytes ( Why it is a Target This prevents users from seeing other processes' info
while (fgets(buffer, sizeof(buffer), fp)) printf("%s", buffer); fetch-url-file-3A-2F-2F-2Fproc-2F1-2Fenviron
Some of the environment variables found in /proc/1/environ include: