PT-2020-20598 · Signotec · Signopad-Api/Web

Published 2020-03-20 · Updated 2021-07-21 · CVE-2020-9343

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions signotec signoPAD-API/Web versions prior to 3.1.1

Description An issue was discovered in the implementation of signotec signoPAD-API/Web, where it is possible to perform a Denial of Service attack because the implementation doesn't limit the parsing of nested JSON structures. If a victim visits an attacker-controlled website, this issue can be exploited via WebSocket data with a deeply nested JSON array.

Recommendations For versions prior to 3.1.1, update to version 3.1.1 or later to resolve the issue. As a temporary workaround, consider restricting access to WebSocket data to minimize the risk of exploitation.

Exploit

Fix

Related Identifiers

CVE-2020-9343

Affected Products

Signopad-Api/Web

References · 4

• 🔥 https://syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2019-053.txt · Exploit
• https://osv.dev/vulnerability/CVE-2020-9343 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-9343 · Security Note
• https://t.me/cvenotify/1936 · Telegram Post