CVE-2023-30455 Denial of service in n/a
Attackers can cause server overload and denial of service by sending requests with excessive e-statement IDs to the download endpoint.
- 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-2023-30455?
CVE-2023-30455 is a high-severity denial of service vulnerability in n/a, published on 28 Apr 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 ebankIT before 7. A Denial-of-Service attack is possible through the GET parameter EStatementsIds located on the /Controls/Generic/EBMK/Handlers/EStatements/DownloadEStatement.ashx endpoint. The GET parameter accepts over 100 comma-separated e-statement IDs without throwing an error. When this many IDs are supplied, the server takes around 60 seconds to respond and successfully generate the expected ZIP archive (during this time period, no other pages load). A threat actor could issue a request to this endpoint with 100+ statement IDs every 30 seconds, potentially resulting in an overload of the server for all users.
Weakness: CWE-770
Which versions are affected by CVE-2023-30455?
It affects 1 product.
Products include Ebankit Ebankit.
How do I fix CVE-2023-30455?
No fix has been published for CVE-2023-30455 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-2023-30455 being exploited?
There is no known exploitation of CVE-2023-30455 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-g2fq-w2p2-cg8q.