Man-in-the-Middle (MitM)

Affecting libetpan package, versions >=0.0.0

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Overview

libetpan is a portable, efficient framework for different kinds of mail access: IMAP, SMTP, POP and NNTP.

Affected versions of this package are vulnerable to Man-in-the-Middle (MitM). LibEtPan has a STARTTLS buffering issue that affects the IMAP, SMTP, and POP3 protocol. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a meddler-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."

Remediation

A fix was pushed into the master branch but not yet published.

References

CVSS Score

7.5
high severity
  • Attack Vector
    Network
  • Attack Complexity
    Low
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    High
  • Integrity
    None
  • Availability
    None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:R
Credit
Unknown
CVE
CVE-2020-15953
CWE
CWE-300
Snyk ID
SNYK-COCOAPODS-LIBETPAN-595674
Disclosed
27 Jul, 2020
Published
27 Jul, 2020