CVE-2020-27888 — HIGH (7.5)

Vulnerability Description

An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi Controller 6.0.28 devices. Cached credentials are not erased from an access point returning wirelessly from a disconnected state. This may provide unintended network access.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Ui	Unifi Meshing Access Point Firmware	4.3.21.11325
Ui	Unifi Meshing Access Point	-
Ui	Unifi Controller Firmware	6.0.28
Ui	Unifi Controller	-

Related Weaknesses (CWE)

CWE-459 CWE-522

References

https://community.ui.com/questions/Possible-authentication-bypass-for-access-intVendor Advisory
https://community.ui.com/questions/Possible-authentication-bypass-for-access-intVendor Advisory

FAQ

What is CVE-2020-27888?

CVE-2020-27888 is a vulnerability with a CVSS score of 7.5 (HIGH). An issue was discovered on Ubiquiti UniFi Meshing Access Point UAP-AC-M 4.3.21.11325 and UniFi Controller 6.0.28 devices. Cached credentials are not erased from an access point returning wirelessly fr...

How severe is CVE-2020-27888?

CVE-2020-27888 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-27888?

Check the references section above for vendor advisories and patch information. Affected products include: Ui Unifi Meshing Access Point Firmware, Ui Unifi Meshing Access Point, Ui Unifi Controller Firmware, Ui Unifi Controller.