CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, при специфични условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
SSH.NET is a Secure Shell (SSH) library for .NET. Prior to 2026.0.0, ScpClient places caller-supplied remote paths into the command used to run scp on the server, and the default RemotePathTransformation.DoubleQuote transformation cannot safely quote every remote command interpreter. When an application passes an attacker-controlled path to a shell-based server, shell metacharacters not neutralized by the active IRemotePathTransformation can execute commands as the authenticated SSH user. Exploitation requires a shell-based server and a path crafted for that shell's parsing rules; non-shell servers and paths fully neutralized by the selected transformation are not affected. RemotePathTransformation.ShellQuote is available for POSIX shells, while SftpClient avoids a remote shell entirely. This issue is fixed in version 2026.0.0.
Засегнати продукти
- sshnet SSH.NET: < 2026.0.0
Вид слабост
История
- 16 септември 2026 Публикувано
Други уязвимости в sshnet SSH.NET
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-85756
- https://nvd.nist.gov/vuln/detail/CVE-2026-85756
- https://github.com/sshnet/SSH.NET/security/advisories/GHSA-mggc-4xg6-vcxf
- https://github.com/sshnet/SSH.NET/commit/c66b9f8fb06c12e71761e58a577b1e796026310f
- https://github.com/sshnet/SSH.NET/releases/tag/2026.0.0