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CVE-2020-15955

nvd nist
Published: Aug 17, 2021Modified: Jun 17, 2026

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5.9
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Exploitability: 2.2 / Impact: 3.6
Source: NVD

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.

Affected (1)

Products: Fehcom: S/qmail
Fehcom
1 product
S/qmail
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
S/qmail
Up to 4.0.07

Related CWEs

CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

References (4)

Source: cve@mitre.org
Technical DescriptionThird Party Advisory
Source: cve@mitre.org
PatchRelease NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Technical DescriptionThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchRelease NotesVendor Advisory

Timeline

No history available yet.