CVE-2017-17877

An issue was discovered in Valve Steam Link build 643. When the SSH daemon is enabled for local development, the device is publicly available via IPv6 TCP port 22 over the internet (with stateless address autoconfiguration) by default, which makes it easier for remote attackers to obtain access by guessing 24 bits of the MAC address and attempting a root login. This can be exploited in conjunction with CVE-2017-17878.

• https://blogger.davidmanouchehri.com/2017/12/steam-link-security-remotely-insecure.htmlIssue Tracking, Third Party Advisory
• https://github.com/ValveSoftware/steamlink-sdk#ssh-accessIssue Tracking, Third Party Advisory
• https://github.com/ValveSoftware/steamlink-sdk/issues/119Issue Tracking, Third Party Advisory
• https://blogger.davidmanouchehri.com/2017/12/steam-link-security-remotely-insecure.htmlIssue Tracking, Third Party Advisory
• https://github.com/ValveSoftware/steamlink-sdk#ssh-accessIssue Tracking, Third Party Advisory
• https://github.com/ValveSoftware/steamlink-sdk/issues/119Issue Tracking, Third Party Advisory

Published

Dec 27, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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