PT-2020-20299 · Ikteam · Bearftp

Kolya5544 · Published 2020-02-12 · Updated 2020-02-19 · CVE-2020-8815

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 IKTeam BearFTP versions prior to 0.3.1

Description The issue is related to improper connection handling in the base connection handler, allowing a remote attacker to cause a denial of service using a Slowloris approach. This is achieved by sending a large volume of small packets.

Recommendations For versions prior to 0.3.1, update to version 0.3.1 or later to resolve the issue.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2020-8815

Affected Products

Bearftp

References · 8

• 🔥 https://github.com/kolya5544/BearFTP/blob/f5a8047587c1a96456d4f291c12b038b9ab0d0c5/BearFTP/Program.cs#L503-L525 · Exploit
• https://github.com/kolya5544/BearFTP/commit/66dc9d95e58bca133f265457d32007cdf38b66ad · Patch
• https://github.com/kolya5544/BearFTP/commit/17a6ead72d4a25cbfcef5e27613aa0a5f88a4b26 · Patch
• https://osv.dev/vulnerability/CVE-2020-8815 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8815 · Security Note
• https://github.com/kolya5544/BearFTP/releases/tag/0.4.0 · Note
• https://github.com/kolya5544/BearFTP · Note
• https://t.me/cvenotify/934 · Telegram Post