CVE-2023-43809

CVSS 3.1 Score 7.5 of 10 (high)

Details

Published Oct 4, 2023
Updated: Oct 10, 2023
CWE ID 287

Summary

CVE-2023-43809 is a security vulnerability in Soft Serve, a self-hostable Git server for the command line, prior to version 0.6.2. This vulnerability allows an unauthenticated, remote attacker to bypass public key authentication when keyboard-interactive SSH authentication is active and the `allow-keyless` setting is enabled. The issue arises from insufficient validation of the public key step during SSH request handshake, granting unauthorized access if the keyboard-interaction mode is utilized. Exploiting this vulnerability could result in unauthorized access to Soft Serve. To remediate this issue, users are advised to upgrade to the latest version of Soft Serve (v0.6.2). Alternatively, users can temporarily disable Keyboard-Interactive SSH Authentication.

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