CVE-2016-10009
openssh: loading of untrusted PKCS#11 modules in ssh-agent
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · December 19, 2016
Updated · May 30, 2026
Description
It was found that ssh-agent could load PKCS#11 modules from arbitrary paths. An attacker having control of the forwarded agent-socket on the server, and the ability to write to the filesystem of the client host, could use this flaw to execute arbitrary code with the privileges of the user running ssh-agent.
Statement
In order to exploit this flaw, the attacker needs to have control of the forwarded agent-socket and the ability to write to the filesystem of the host running ssh-agent. Because of this restriction for successful exploitation, this issue has been rated as having Moderate security impact. A future update may address this flaw.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 6.6CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 · 4.6AV:N/AC:H/Au:S/C:P/I:P/A:P
CWE not specified