CVE Vulnerability

CVE-2020-15955

In s/qmail through 4.0.07, an active MitM can inject arbitrary plaintext commands into a STARTTLS encrypted session between an SMTP client and s/qmail. This allows e-mail messages and user credentials to be sent to the MitM attacker.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://nostarttls.secvuln.info/ Technical Description Third Party Advisory
https://www.fehcom.de/sqmail/sqmail.html Patch Release Notes
Configurations

Configuration 1

cpe:2.3:a:fehcom:s/qmail:*:*:*:*:*:*:*:*
Information

Published : 2021-08-17 06:15

Updated : 2021-08-31 03:49

NVD link : CVE-2020-15955

Mitre link : CVE-2020-15955

Products Affected
No products.
CWE
CWE-77