Vulnerability Details : 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.
Products affected by CVE-2017-17877
- cpe:2.3:o:valvesoftware:steam_link_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-17877
0.76%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-17877
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
References for CVE-2017-17877
-
https://github.com/ValveSoftware/steamlink-sdk/issues/119
Page not found · GitHub · GitHubIssue Tracking;Third Party Advisory
-
https://github.com/ValveSoftware/steamlink-sdk#ssh-access
GitHub - ValveSoftware/steamlink-sdkIssue Tracking;Third Party Advisory
-
https://blogger.davidmanouchehri.com/2017/12/steam-link-security-remotely-insecure.html
RFC 3514: Steam Link Security - Remotely Insecure SSH - Part #2Issue Tracking;Third Party Advisory
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