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  5. CVE-2023-46446

CVE-2023-46446: AsyncSSH Rogue Session Attack

November 9, 2023 (updated November 4, 2025)

An issue in AsyncSSH v2.14.0 and earlier allows attackers to control the remote end of an SSH client session via packet injection/removal and shell emulation.

References

  • github.com/advisories/GHSA-c35q-ffpf-5qpm
  • github.com/pypa/advisory-database/tree/main/vulns/asyncssh/PYSEC-2023-239.yaml
  • github.com/ronf/asyncssh
  • github.com/ronf/asyncssh/blob/develop/docs/changes.rst
  • github.com/ronf/asyncssh/commit/83e43f5ea3470a8617fc388c72b062c7136efd7e
  • github.com/ronf/asyncssh/security/advisories/GHSA-c35q-ffpf-5qpm
  • lists.debian.org/debian-lts-announce/2024/09/msg00042.html
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE
  • nvd.nist.gov/vuln/detail/CVE-2023-46446
  • security.netapp.com/advisory/ntap-20231222-0001
  • www.terrapin-attack.com/

Code Behaviors & Features

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Affected versions

All versions before 2.14.1

Fixed versions

  • 2.14.1

Solution

Upgrade to version 2.14.1 or above.

Impact 6.8 MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Learn more about CVSS

Weakness

  • CWE-345: Insufficient Verification of Data Authenticity
  • CWE-349: Acceptance of Extraneous Untrusted Data With Trusted Data
  • CWE-354: Improper Validation of Integrity Check Value
  • CWE-359: Exposure of Private Personal Information to an Unauthorized Actor
  • CWE-639: Authorization Bypass Through User-Controlled Key

Source file

pypi/asyncssh/CVE-2023-46446.yml

Spotted a mistake? Edit the file on GitLab.

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