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Debian dla-4453 : inetutils-ftp - security update
critical Nessus Plugin ID 296511
Synopsis
The remote Debian host is missing a security-related update.Description
The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4453 advisory.------------------------------------------------------------------------- Debian LTS Advisory DLA-4453-1 [email protected] https://www.debian.org/lts/security/ Andreas Henriksson January 25, 2026 https://wiki.debian.org/LTS
-------------------------------------------------------------------------
Package : inetutils Version : 2:2.0-1+deb11u3 CVE ID : CVE-2026-24061 Debian Bug : 1126047
Kyu Neushwaistein aka Carlos Cortes Alvarez found that inetutils, a collection of common network programs, was vulnerable to an authentication bypass problem in telnetd, which could lead to remote root shell access (if telnetd is enabled and exposed).
As described also in the GNU InetUtils security advisory, it is not recommended to run telnetd server at all. At a minimum, restrict network access to the telnet port to trusted clients only. There is after all no encryption built into the telnet protocol, so authentication details would be sent in plain text over the network (which thus needs to be trusted).
For more details see the GNU InetUtils Security Advisory:
https://lists.gnu.org/archive/html/bug-inetutils/2026-01/msg00004.html
For Debian 11 bullseye, this problem has been fixed in version 2:2.0-1+deb11u3.
We recommend that you upgrade your inetutils packages.
For the detailed security status of inetutils please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/inetutils
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade the inetutils-ftp packages.See Also
https://security-tracker.debian.org/tracker/source-package/inetutils
Plugin Details
Severity: Critical
ID: 296511
File Name: debian_DLA-4453.nasl
Version: 1.1
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 1/24/2026
Updated: 1/24/2026
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.0
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-24061
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:inetutils-ftp, p-cpe:/a:debian:debian_linux:inetutils-ftpd, p-cpe:/a:debian:debian_linux:inetutils-inetd, p-cpe:/a:debian:debian_linux:inetutils-ping, p-cpe:/a:debian:debian_linux:inetutils-syslogd, p-cpe:/a:debian:debian_linux:inetutils-talk, p-cpe:/a:debian:debian_linux:inetutils-talkd, p-cpe:/a:debian:debian_linux:inetutils-telnet, p-cpe:/a:debian:debian_linux:inetutils-telnetd, p-cpe:/a:debian:debian_linux:inetutils-tools, p-cpe:/a:debian:debian_linux:inetutils-traceroute
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/25/2026
Vulnerability Publication Date: 1/21/2026
Reference Information
CVE: CVE-2026-24061