CVE-2020-12645 Denial of service in n/a

Critical 9.8 Published 31 Aug 2020 Updated 4 Aug 2024

Attackers can cause denial of service in OX App Suite by exploiting improper input validation in rate limits via crafted headers and spoofed notices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-12645?

CVE-2020-12645 is a critical denial of service vulnerability in Open-Xchange Open-Xchange Appsuite, published on 31 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

OX App Suite 7.10.1 to 7.10.3 has improper input validation for rate limits with a crafted User-Agent header, spoofed vacation notices, and /apps/load memory consumption.

Weakness: CWE-307

Which versions are affected by CVE-2020-12645?

It affects 1 product.

Products include Open-Xchange Open-Xchange Appsuite.

How do I fix CVE-2020-12645?

No fix has been published for CVE-2020-12645 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-2020-12645 being exploited?

There is no known exploitation of CVE-2020-12645 in the wild and no public exploit code.

All Open-Xchange Open-Xchange Appsuite vulnerabilities

Sources

Also known as GHSA-9753-9pqh-vm76.