PT-2022-6928 · Proftpd+2 · Proftpd+2

Zeha · Published 2022-11-23 · Updated 2025-04-28 · CVE-2021-46854

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions ProFTPD versions prior to 1.3.7c

Description The issue is related to a memory disclosure error in the mod radius module of ProFTPD, allowing an attacker to gain unauthorized access to protected information. This error occurs because the module copies blocks of 16 characters, potentially revealing sensitive data to RADIUS servers.

Recommendations For versions prior to 1.3.7c, update to version 1.3.7c or later to resolve the issue. As a temporary workaround, consider disabling the mod radius module until a patch is available. Restrict access to the RADIUS servers to minimize the risk of exploitation.

Exploit

Fix

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALT-PU-2023-5707

ALT-PU-2023-5874

ALT-PU-2024-13729

BDU:2023-05663

CVE-2021-46854

OESA-2022-2127

OESA-2022-2128

Affected Products

Alt Linux

Proftpd

Red Os

References · 28

• 🔥 https://github.com/proftpd/proftpd/issues/1284 · Exploit
• 🔥 https://github.com/ptef/CVE-2020-9273 · Exploit
• https://bdu.fstec.ru/vul/2023-05663 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-46854 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-46854 · Vendor Advisory
• https://security.gentoo.org/glsa/202305-03 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-46854 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-46854 · Vendor Advisory
• http://repo.red-soft.ru/redos/7.3c/x86_64/updates · Vendor Advisory
• http://proftpd.org/docs/RELEASE_NOTES-1.3.7e · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-46854 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-2128 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-46854 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-46854 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2022-2127 · Vendor Advisory