CVE-2023-50455 Denial of service in n/a
An attacker can cause denial of service and spam victims by exploiting missing rate limits in the email verification feature.
- 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-2023-50455?
CVE-2023-50455 is a high-severity denial of service vulnerability in Zammad Zammad, published on 10 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Zammad before 6.2.0. Due to lack of rate limiting in the "email address verification" feature, an attacker could send many requests for a known address to cause Denial Of Service (generation of many emails, which would also spam the victim).
Weakness: CWE-770
Which versions are affected by CVE-2023-50455?
It affects 1 product.
Products include Zammad Zammad.
How do I fix CVE-2023-50455?
No fix has been published for CVE-2023-50455 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-2023-50455 being exploited?
There is no known exploitation of CVE-2023-50455 in the wild and no public exploit code.
Other vulnerabilities in Zammad Zammad
Sources
Also known as GHSA-278r-xxvf-49rm.