REDHAT-BUG-2420052: Medium severity Dropbear Dropbear SSH Server vulnerability
A flaw was found in Dropbear. When running in multi-user mode and authenticating users, the dropbear ssh server does the socket forwardings requested by the remote client as root, only switching to the logged-in user upon spawning a shell or performing some operations like reading the user's files. With the recent ability of also using unix domain sockets as the forwarding destination any user able to log in via ssh can connect to any unix socket with the root's credentials, bypassing both file system restrictions and any SOPEERCRED / SOPASSCRED checks performed by the peer.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2420052?
The severity of REDHAT-BUG-2420052 is considered high due to potential unauthorized access and privilege escalation risks.
How do I fix REDHAT-BUG-2420052?
To fix REDHAT-BUG-2420052, ensure you update to the latest version of the Dropbear SSH Server that includes the patch for this flaw.
What impacts does REDHAT-BUG-2420052 have on system security?
The impacts of REDHAT-BUG-2420052 include the potential for remote clients to execute operations as root before switching to the authenticated user.
Who is affected by REDHAT-BUG-2420052?
Users running the Dropbear SSH Server in multi-user mode are affected by REDHAT-BUG-2420052.
What are the recommended practices regarding REDHAT-BUG-2420052?
It's recommended to restrict access to the Dropbear SSH Server and apply updates promptly to mitigate risks associated with REDHAT-BUG-2420052.