PT-2023-22702 · Ebankit · Ebankit

Published 2023-04-28 · Updated 2025-01-30 · CVE-2023-30455

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions ebankIT versions prior to 7

Description An issue allows a Denial-of-Service attack through the EStatementsIds GET parameter located on the "/Controls/Generic/EBMK/Handlers/EStatements/DownloadEStatement.ashx" endpoint. This parameter accepts over 100 comma-separated e-statement IDs without throwing an error, causing the server to take around 60 seconds to respond and generate a ZIP archive. During this time, no other pages load. A threat actor could exploit this by issuing requests with 100+ statement IDs every 30 seconds, potentially overloading the server for all users.

Recommendations For versions prior to 7, consider disabling the EStatementsIds parameter in the "/Controls/Generic/EBMK/Handlers/EStatements/DownloadEStatement.ashx" endpoint as a temporary workaround until a patch is available. Restrict access to this endpoint to minimize the risk of exploitation. Avoid using the EStatementsIds parameter with a large number of comma-separated IDs until the issue is resolved.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2023-30455

Affected Products

Ebankit

References · 6

• https://osv.dev/vulnerability/CVE-2023-30455 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-30455 · Security Note
• https://packetstormsecurity.com/files/172064/ebankIT-6-Denial-Of-Service.html · Note
• https://t.me/cvenotify/50026 · Telegram Post
• https://t.me/cvenotify/109311 · Telegram Post
• https://blog.ebankit.com/blog-press · Note