What’s Vulnerable › Vulnerabilities

CVE-2021-45841

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-04-25 · updated 2026-06-17
• Weakness: CWE-287

Description

In Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517), an attacker can self-sign session cookies by knowing the target's MAC address and the user's password hash. Guest users (disabled by default) can be abused using a null/empty hash and allow an unauthenticated attacker to login as guest.

Affected products

• Terra-Master Tos: 4.2.15-2107141517

References

• http://packetstormsecurity.com/files/172881/TerraMaster-TOS-4.2.15-Remote-Code-Execution.html
• https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces/
• http://packetstormsecurity.com/files/172881/TerraMaster-TOS-4.2.15-Remote-Code-Execution.html
• https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces/

Get alerted when CVE-2021-45841 or the next vulnerability affects your stack