CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
russh is a Rust SSH client and server library that includes an SSH agent protocol implementation. From 0.50.0-beta.12 until 0.65.0, the agent server's Connection::try_sign path in russh/src/keys/agent/server.rs recognizes SSH_AGENT_CONSTRAIN_CONFIRM but returns a hard-coded successful result instead of calling Agent::confirm. In applications that override Agent::confirm to require user approval or another policy check, a process that can reach the agent socket, including the remote side of a forwarded agent, can use a key added through ssh-add -c without that check and can authenticate or sign data as the user while the key remains loaded. The separate Agent::confirm_request hook still runs for every signing request, so checks implemented there remain effective, and implementations that retain the default always-successful Agent::confirm do not lose an approval check through this regression. This issue is fixed in version 0.65.0.
Засегнати продукти
- Eugeny russh: < 0.65
Вид слабост
История
- 28 октомври 2026 Публикувано
Други уязвимости в Eugeny russh
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-116794
- https://nvd.nist.gov/vuln/detail/CVE-2026-116794
- https://github.com/Eugeny/russh/security/advisories/GHSA-vp5q-ff62-jwqv
- https://github.com/Eugeny/russh/commit/3e04597dc54e36bfc85c21996f7d8d9d224e9826
- https://github.com/Eugeny/russh/commit/62db6e7defd6d244159da962ccccb029e785ce0f
- https://github.com/Eugeny/russh/releases/tag/v0.65.0