Vulnerability CVE-2019-5456
Published: 2019-07-30

Description:
SMTP MITM refers to a malicious actor setting up an SMTP proxy server between the UniFi Controller version <= 5.10.21 and their actual SMTP server to record their SMTP credentials for malicious use later.

Type:

CWE-255

 (Credentials Management)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
UI -> Unifi controller 

 References:
https://community.ui.com/releases/862b962b-55f6-4324-96be-610f647d5c1c
https://community.ui.com/releases/9f698d0b-8279-40d3-9f1a-d36db4813124
https://community.ui.com/releases/Security-Advisory-Bulletin-003-003/982bbaa8-2a07-4f81-a5f6-0bb84753f391
https://hackerone.com/reports/519582
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