Resource exhaustion in Ebankit
CVE-2023-30455
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.010 (63.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
Weakness classification (CWE)
References
- blog.ebankit.com/blog-press (Product)
- packetstormsecurity.com/files/172064/ebankIT-6-Denial-Of-Service.html (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-30455?
- CVE-2023-30455 is a high-severity vulnerability in Ebankit, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-04-28.
- How severe is CVE-2023-30455?
- High severity. CVSS v3 base score is 7.5 out of 10.