Time

Verified writeups for the Time machine of Hack The Box

Time

$ tldr Jackson SSRF → CVE-2019-12384 RCE → cron job privesc

CVE / Bulletins: CVE-2019-12384 ↗

·	·
Operating system	Linux
Difficulty	Medium
Vector	Web
IP	10.10.10.214
Retirement date	2021-04-03
Skills	Jackson CVE-2019-12384 Exploitation - SSRF to RCE Abusing Cron Job [Privilege Escalation]

Writeups

Language	Author	Format	Link
🇪🇸 ES	S4vitar	Vídeo	Open
🇪🇸 ES	El Pingüino de Mario	Vídeo	Open
🇬🇧 EN	0xdf	Texto	Open
🇬🇧 EN	IppSec	Vídeo	Open

Skill resources

Curated documentation for each technique listed in the Skills column above. Sources: HackTricks, GTFOBins, PortSwigger, etc.

Skill	Source	Link
Server-Side Request Forgery	HackTricks	Open
Remote Code Execution (RCE)	HackTricks	Open

Related skills worth mastering

Cross-Site Scripting (XSS) · Local File Inclusion (LFI) · Remote File Inclusion (RFI) · Shellshock (CVE-2014-6271)

If you liked this machine, try

• AdmirerToo — Linux, Hard
• Chaos — Linux, Medium
• Forge — Linux, Medium
• Shibboleth — Linux, Medium
• Knife — Linux, Easy

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Comments & tips

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Last updated: 2026-06-07