What is CVE-2017-11507?

CVE-2017-11507 is a medium-severity vulnerability in Check Mk Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-12-11.

How severe is CVE-2017-11507?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Check Mk Project

CVE-2017-11507

A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.2.8x prior to 1.2.8p25 and 1.4.0x prior to 1.4.0p9, allowing an unauthenticated attacker to inject arbitrary HTML or JavaScript via the output_format parameter, and the username parameter of failed HTTP basic authentication attempts, which is returned unencoded in an internal server error page.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.010 (60.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Check_mk_project Check_mk — versions 1.2.8, 1.4.0
Tenable Check_mk — versions 1.4.0x prior to 1.4.0p9, 1.2.8x prior to 1. 2.8p25

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

vulnreport@tenable.com (Exploit, Third Party Advisory, x_refsource_MISC)
vulnreport@tenable.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2017-11507?: CVE-2017-11507 is a medium-severity vulnerability in Check Mk Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-12-11.
How severe is CVE-2017-11507?: Medium severity. CVSS v3 base score is 6.1 out of 10.