The log entry in the image suggests that the system is potentially under attack, as the User-Agent header contains what looks like a shell command: ${/bin/sh/id}. This type of activity may indicate an attempted command injection attack, where an attacker is trying to execute shell commands via a vulnerable web application.
Input Sanitization would be for the code as below: Remove/escape special characters:
Shell metacharacters ($, ;, |, `, etc.)
Command separators
Path traversal characters
Sanitized Code in bash ( in question, it is a shell command):
sanitized_ua=$(printf '%q' "$(echo "$user_agent" | tr -d '$;|`')")
This section is not available anymore. Please use the main Exam Page.SY0-701 Exam Questions
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
chasingsummer
Highly Voted 5 months, 1 week ago9149f41
Most Recent 2 months, 3 weeks agochasingsummer
5 months ago