CVE-2011-4327: ssh-keysign.c in ssh-keysign in OpenSSH before 5.8p2 on certain platforms executes ssh-rand-helper with uni...
ssh-keysign.c in ssh-keysign in OpenSSH before 5.8p2 on certain platforms executes ssh-rand-helper with unintended open file descriptors, which allows local users to obtain sensitive key information via the ptrace system call.
Security readout for executives and security teams
This OpenSSH issue can let a local user read sensitive key material on some platforms. It requires an account or local access, so it is not an internet-facing remote takeover, but it can undermine trust in SSH host-based authentication and key secrecy on shared systems. Exposure is most likely on systems running OpenSSH portable before 5.8p2 where ssh-keysign and ssh-rand-helper are present. Shared Unix/Linux hosts, bastions, and systems with untrusted local users deserve priority. The bundle does not enumerate exact affected platforms or package versions. Treat this as a near-term hygiene fix for shared or security-sensitive systems, not an emergency remote-exploitation event. Prioritize bastions, multi-user servers, and legacy hosts because key disclosure can have broader trust consequences. Mitigation focus: Upgrade OpenSSH portable to 5.8p2 or a vendor-supported fixed package.; Review OpenSSH and operating-system vendor advisories for platform-specific applicability.; Restrict local shell access on systems where untrusted users are present..
Prepared
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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CWE-200: Information exposure and cloud metadata lookup
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CWE-200 · source CWE mapping
Exposure of Sensitive Information to an Unauthorized Actor
Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.