CVE-2017-17877
9.8 · CRITICALOverview
CVE-2017-17877 is a critical-severity vulnerability affecting valvesoftware steam_link_firmware. It was published on December 27, 2017 and has a CVSS 3.0 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
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.
Remediation
Check the references section for vendor advisories and patches from valvesoftware. Update steam_link_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| valvesoftware | steam_link_firmware | >= 0, < 644 | Affected |
References
Frequently Asked Questions
What is CVE-2017-17877?
CVE-2017-17877 is a critical-severity vulnerability affecting valvesoftware steam_link_firmware. It was published on December 27, 2017 and has a CVSS 3.0 base score of 9.8 (CRITICAL).
How severe is CVE-2017-17877?
This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2017-17877?
Check the references section for vendor advisories and patches from valvesoftware. Update steam_link_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-17877?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-17877 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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