CVE-2018-11448 Cross-site scripting in SCALANCE M875

Medium 4.8 Published Updated

An authenticated attacker can inject malicious scripts into the web interface, leading to code execution in the browser of legitimate users.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-11448?

CVE-2018-11448 is a medium-severity cross-site scripting vulnerability in Siemens AG SCALANCE M875, published on 26 Jun 2018. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A vulnerability has been identified in SCALANCE M875 (All versions). The web interface on port 443/tcp could allow a stored Cross-Site Scripting (XSS) attack if an unsuspecting user is tricked into accessing a malicious link. Successful exploitation requires that the attacker has access to the web interface of an affected device. The attacker must be authenticated as administrative user on the web interface. Afterwards, a legitimate user must access the web interface. A successful attack could allow an attacker to execute malicious code in the browser of a legitimate user. At the time of advisory publication no public exploitation of this security vulnerability was known.

Weakness: CWE-79, CWE-352

Which versions are affected by CVE-2018-11448?

It affects 1 product.

Products include Siemens Scalance M875 Firmware.

How do I fix CVE-2018-11448?

No fix has been published for CVE-2018-11448 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-2018-11448 being exploited?

There is no known exploitation of CVE-2018-11448 in the wild and no public exploit code.

Sources

Also known as GHSA-g2w7-2wmm-w74m.

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