CVE-2017-11507 Cross-site scripting in Check MK
Unauthenticated attackers can inject arbitrary HTML or JavaScript via specific parameters in Check_MK, potentially leading to session hijacking or malicious script execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-11507?
CVE-2017-11507 is a medium-severity cross-site scripting vulnerability in Tenable Check_MK, published on 11 Dec 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2017-11507?
It affects 1 product.
Products include Check Mk Project Check Mk.
How do I fix CVE-2017-11507?
No fix has been published for CVE-2017-11507 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2017-11507 being exploited?
There is no known exploitation of CVE-2017-11507 in the wild and no public exploit code.
Other vulnerabilities in Tenable Check_MK
Sources
Also known as GHSA-gg6p-3mxx-fqcj, UBUNTU-CVE-2017-11507.