PT-2020-16328 · Tangro · Tangro Business Workflow

Published 2020-12-18 · Updated 2021-07-21 · CVE-2020-26173

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Tangro Business Workflow versions prior to 1.18.1

Description The issue is related to an incorrect access control implementation, allowing an attacker to download documents, specifically PDFs, by providing a valid document ID and token without requiring further authentication.

Recommendations For versions prior to 1.18.1, update to version 1.18.1 or later to resolve the issue. As a temporary workaround, consider restricting access to document downloads by validating user authentication in addition to the document ID and token.

Exploit

Fix

Missing Authentication

IDOR

Weakness Enumeration

CWE-306

CWE-639

Related Identifiers

CVE-2020-26173

Affected Products

Tangro Business Workflow

References · 6

• 🔥 https://blog.to.com/advisory-tangro-bwf-1-17-5-multiple-vulnerabilities · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-26173 · Security Note
• https://osv.dev/vulnerability/CVE-2020-26173 · Vendor Advisory
• https://t.me/cvenotify/7474 · Telegram Post
• https://tangro.de · Note
• https://t.me/cibsecurity/21050 · Telegram Post