CVE-2020-9343 Denial of service in n/a
An attacker can cause a denial of service in signoPAD-API/Web by sending deeply nested JSON structures via WebSocket, requiring users to visit a malicious site.
- 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-2020-9343?
CVE-2020-9343 is a medium-severity denial of service vulnerability in n/a, published on 20 Mar 2020. 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
An issue was discovered in signotec signoPAD-API/Web (formerly Websocket Pad Server) before 3.1.1 on Windows. It is possible to perform a Denial of Service attack because the implementation doesn't limit the parsing of nested JSON structures. If a victim visits an attacker-controlled website, this vulnerability can be exploited via WebSocket data with a deeply nested JSON array.
Which versions are affected by CVE-2020-9343?
It affects 1 product.
Products include Signotec Signopad-Api\/Web.
How do I fix CVE-2020-9343?
No fix has been published for CVE-2020-9343 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-9343 being exploited?
There is no known exploitation of CVE-2020-9343 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-v7v6-4c5h-8jcg.