VulnerabilityModified

CVE-2020-11447

Remote authenticated users can retrieve the serial number via cgi/json-req - this is an information leak because the serial number is intended to prove an actor's physical access to the device.

MEDIUM 4.3EPSS 0.65%

Does this matter?

Lower severity and a low EPSS score (0.65%). Track it; it rarely justifies an emergency change on its own.

Description

An issue was discovered on Bell HomeHub 3000 SG48222070 devices. Remote authenticated users can retrieve the serial number via cgi/json-req - this is an information leak because the serial number is intended to prove an actor's physical access to the device.

CVSS 3.1: 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.65% probability · 49th percentile
CISA KEV: Not listed
Weakness: CWE-200
Affected: bell/home hub 3000 firmware
Source: cve@mitre.org

References

https://0xem.ma/posts/HH3K-CVE/Exploit
https://support.bell.ca/Internet/Connection-help/Access_control_in_the_Home_Hub_modemsProduct
https://0xem.ma/posts/HH3K-CVE/Exploit
https://support.bell.ca/Internet/Connection-help/Access_control_in_the_Home_Hub_modemsProduct

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.