SB2024091029 - MitM attack in F5 Traffix SDC OpenSSH component

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2024091029

SB2024091029 - MitM attack in F5 Traffix SDC OpenSSH component

Published: September 10, 2024 Updated: January 31, 2025

Security Bulletin ID SB2024091029
Severity
Low
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Inadequate encryption strength (CVE-ID: CVE-2023-48795)

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to incorrect implementation of the SSH Binary Packet Protocol (BPP), which mishandles the handshake phase and the use of sequence numbers. A remote attacker can perform MitM attack and delete the SSH2_MSG_EXT_INFO message sent before authentication starts, allowing the attacker to disable a subset of the keystroke timing obfuscation features introduced in OpenSSH 9.5.

The vulnerability was dubbed "Terrapin attack" and it affects both client and server implementations.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References