CVE-2021-42703 AzeoTech DAQFactory
An attacker can inject malicious JavaScript to hijack user sessions and redirect users to malicious pages in Advantech HMI Designer.
- 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-2021-42703?
CVE-2021-42703 is a medium-severity cross-site scripting vulnerability in Advantech HMI Designer, published on 15 Nov 2021. 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
This vulnerability could allow an attacker to send malicious Javascript code resulting in hijacking of the user’s cookie/session tokens, redirecting the user to a malicious webpage, and performing unintended browser action.
Weakness: CWE-79
Which versions are affected by CVE-2021-42703?
It affects 1 product.
Products include Advantech Webaccess Hmi Designer.
How do I fix CVE-2021-42703?
No fix has been published for CVE-2021-42703 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-2021-42703 being exploited?
There is no known exploitation of CVE-2021-42703 in the wild and no public exploit code.
Other vulnerabilities in Advantech HMI Designer
- CVE-2019-10961 Memory corruption in Advantech WebAccess HMI Designer
- CVE-2021-42706 AzeoTech DAQFactory
- CVE-2018-8833 Memory corruption in Advantech WebAccess HMI Designer
- CVE-2018-8835 Use after free in Advantech WebAccess HMI Designer
- CVE-2018-8837 Memory corruption in Advantech WebAccess HMI Designer
Sources
Also known as GHSA-g22f-95g3-fg47.