CVE-2019-18217

HIGH NUCLEI

ProFTPD < 1.3.6b and 1.3.7rc < 1.3.7rc2 - Unauthenticated Denial of Service via Long Command Handling

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2019-18217 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

Description

ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.

Nuclei Templates (1)

ProFTPD < 1.3.6b - Remote Unauthenticated DoS
HIGHVERIFIEDby pussycat0x
Shodan: product:"proftpd" || cpe:"cpe:2.3:a:proftpd:proftpd"

References (14)

Core 14
Core References
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://github.com/proftpd/proftpd/issues/846
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/proftpd/proftpd/blob/master/NEWS
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/proftpd/proftpd/blob/1.3.6/NEWS
Mailing List mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/10/msg00036.html
Mailing List mailing-list x_refsource_bugtraq
https://seclists.org/bugtraq/2019/Nov/7
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2019/dsa-4559
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202003-35

Scores

CVSS v3 7.5
EPSS 0.1951
EPSS Percentile 97.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-835
Status published
Products (3)
proftpd/proftpd 1.3.6 (6 CPE variants)
proftpd/proftpd 1.3.7 rc1
proftpd/proftpd < 1.3.5
Published Oct 21, 2019
Tracked Since Feb 18, 2026