CVE-2020-15955

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.53%
Vendor Advisory fehcom.de
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.fehcom.de/sqmail/sqmail.html release notes patch vendor advisory
https://nostarttls.secvuln.info/ third party advisory technical description

Frequently Asked Questions

What is the severity of CVE-2020-15955?
CVE-2020-15955 has been scored as a medium severity vulnerability.
How to fix CVE-2020-15955?
To fix CVE-2020-15955, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-15955 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-15955 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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