CVE-2018-17208

UnknownEPSS 2.53%

Last modified

CVE-2018-17208 is a vulnerability of currently unknown severity. Linksys Velop 1.1.2.187020 devices allow unauthenticated command injection, providing an attacker with full root access, via cgi-bin/zbtest.cgi or cgi-bin/zbtest2.cgi (scripts that can be discovered with binwalk on the firmware, but are not visible in the web interface). This occurs because shell metacharacters in the query string are mishandled by ShellExecute, as demonstrated by the zbtest.cgi?cmd=level&level= substring. EPSS estimates a 2.53% chance of exploitation in the next 30 days.

Description

Linksys Velop 1.1.2.187020 devices allow unauthenticated command injection, providing an attacker with full root access, via cgi-bin/zbtest.cgi or cgi-bin/zbtest2.cgi (scripts that can be discovered with binwalk on the firmware, but are not visible in the web interface). This occurs because shell metacharacters in the query string are mishandled by ShellExecute, as demonstrated by the zbtest.cgi?cmd=level&level= substring. This can also be exploited via CSRF.

Metrics

EPSS Probability
2.53%

82.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinksysVelop Firmware1.1.2.187020

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-17208?
Linksys Velop 1.1.2.187020 devices allow unauthenticated command injection, providing an attacker with full root access, via cgi-bin/zbtest.cgi or cgi-bin/zbtest2.cgi (scripts that can be discovered with binwalk on the firmware, but are not visible in the web interface). This occurs because shell metacharacters in the query string are mishandled by ShellExecute, as demonstrated by the zbtest.cgi?cmd=level&level= substring. This can also be exploited via CSRF.
How severe is CVE-2018-17208?
Severity scoring for CVE-2018-17208 is pending analysis. The EPSS model estimates a 2.53% probability of exploitation in the next 30 days.
How do I fix CVE-2018-17208?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-17208?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST