PT-2022-12430 · Terramaster · Terramaster F4-210+2

N0Tme · Published 2022-04-25 · Updated 2023-08-08 · CVE-2021-45841

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Terramaster F4-210, F2-210 TOS versions 4.2.X (4.2.15-2107141517)

Description The issue allows an attacker to self-sign session cookies if they know the target's MAC address and the user's password hash. Additionally, guest users, which are disabled by default, can be exploited using a null or empty hash, enabling an unauthenticated attacker to log in as a guest.

Recommendations For Terramaster F4-210, F2-210 TOS version 4.2.15-2107141517, consider disabling guest user accounts to prevent exploitation. As a temporary workaround, restrict access to the login functionality until a patch is available. Avoid using null or empty hashes for guest users to minimize the risk of exploitation.

Exploit

Fix

Improper Authentication

Using Hardcoded Credentials

Weakness Enumeration

CWE-287

CWE-798

Related Identifiers

CVE-2021-45841

Affected Products

Tos

Terramaster F2-210

Terramaster F4-210

References · 5

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/terramaster_unauth_rce_cve_2021_45837.rb · Exploit
• 🔥 https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces · Exploit
• https://osv.dev/vulnerability/CVE-2021-45841 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-45841 · Security Note
• http://packetstormsecurity.com/files/172881/TerraMaster-TOS-4.2.15-Remote-Code-Execution.html · Note