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MEDIUM · 5.9

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...

Vulnerability Description

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.

CVSS Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
FehcomS\/Qmail<= 4.0.07

Related Weaknesses (CWE)

CWE-77

References

FAQ

What is CVE-2020-15955?

CVE-2020-15955 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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...

How severe is CVE-2020-15955?

CVE-2020-15955 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-15955?

Check the references section above for vendor advisories and patch information. Affected products include: Fehcom S\/Qmail.