Like many other SSH implementations, Apache MINA SSHD suffered from the issue that is more widely known as CVE-2023-48795. An attacker that can intercept traffic between client and server could drop certain packets from the stream, potentially causing client and server to consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack
The mitigations to prevent this type of attack were implemented in Apache MINA SSHD 2.12.0, both client and server side. Users are recommended to upgrade to at least this version. Note that both the client and the server implementation must have mitigations applied against this issue, otherwise the connection may still be affected.
CVSS Details
- CVSS 3.1 Base Score: 5.9
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Progress Moveit Transfer | — | Disable vulnerable SSH algorithms in Progress MOVEit Transfer to mitigate the Terrapin vulnerability by updating the SFTP/SSH configuration to disable weak ciphers and MAC algorithms such as [email protected], aes128-cbc, aes192-cbc, aes256-cbc, and Encrypt-then-MAC (EtM) algorithms including [email protected] and [email protected], which are susceptible to SSH handshake manipulation; instead, allow only secure algorithms such as AES-GCM-based ciphers and restart MOVEit Transfer services for changes to take effect. | Nov 27, 2025 | Dec 21, 2023 |
| Red Hat Jboss Eap | — | Upgrade Red Hat JBoss EAP to the latest version | Sep 19, 2024 | Aug 12, 2024 |
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