VulnerabilityModified
CVE-2021-45841
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.
HIGH 8.1EPSS 8.29%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.29% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-798
- Affected
- terra-master/tos
- Source
- cve@mitre.org
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/Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/172881/TerraMaster-TOS-4.2.15-Remote-Code-Execution.html
- https://thatsn0tmy.site/posts/2021/12/how-to-summon-rces/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.