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Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : Erlang vulnerability (USN-7443-1)

critical Nessus Plugin ID 234683

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by a vulnerability as referenced in the USN-7443-1 advisory.

 Fabian Bumer, Marcel Maehren, Marcus Brinkmann, and Jrg Schwenk discovered that Erlang OTPs SSH module incorrect handled authentication. A remote attacker could use this issue to execute arbitrary commands without authentication, possibly leading to a system compromise.

Tenable has extracted the preceding description block directly from the Ubuntu 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

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-7443-1

Plugin Details

Severity: Critical

ID: 234683

File Name: ubuntu_USN-7443-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 4/21/2025

Updated: 1/21/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-32433

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:erlang-os-mon, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:erlang-ftp, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:erlang-mode, p-cpe:/a:canonical:ubuntu_linux:erlang, p-cpe:/a:canonical:ubuntu_linux:erlang-megaco, p-cpe:/a:canonical:ubuntu_linux:erlang-public-key, p-cpe:/a:canonical:ubuntu_linux:erlang-src, cpe:/o:canonical:ubuntu_linux:24.10, p-cpe:/a:canonical:ubuntu_linux:erlang-asn1, p-cpe:/a:canonical:ubuntu_linux:erlang-ssl, p-cpe:/a:canonical:ubuntu_linux:erlang-debugger, p-cpe:/a:canonical:ubuntu_linux:erlang-crypto, p-cpe:/a:canonical:ubuntu_linux:erlang-jinterface, p-cpe:/a:canonical:ubuntu_linux:erlang-odbc, p-cpe:/a:canonical:ubuntu_linux:erlang-parsetools, p-cpe:/a:canonical:ubuntu_linux:erlang-ssh, p-cpe:/a:canonical:ubuntu_linux:erlang-common-test, p-cpe:/a:canonical:ubuntu_linux:erlang-examples, p-cpe:/a:canonical:ubuntu_linux:erlang-base-hipe, p-cpe:/a:canonical:ubuntu_linux:erlang-observer, p-cpe:/a:canonical:ubuntu_linux:erlang-dialyzer, p-cpe:/a:canonical:ubuntu_linux:erlang-wx, p-cpe:/a:canonical:ubuntu_linux:erlang-x11, p-cpe:/a:canonical:ubuntu_linux:erlang-mnesia, p-cpe:/a:canonical:ubuntu_linux:erlang-inets, p-cpe:/a:canonical:ubuntu_linux:erlang-nox, p-cpe:/a:canonical:ubuntu_linux:erlang-syntax-tools, p-cpe:/a:canonical:ubuntu_linux:erlang-dev, p-cpe:/a:canonical:ubuntu_linux:erlang-tools, p-cpe:/a:canonical:ubuntu_linux:erlang-edoc, p-cpe:/a:canonical:ubuntu_linux:erlang-eunit, p-cpe:/a:canonical:ubuntu_linux:erlang-runtime-tools, p-cpe:/a:canonical:ubuntu_linux:erlang-reltool, p-cpe:/a:canonical:ubuntu_linux:erlang-eldap, p-cpe:/a:canonical:ubuntu_linux:erlang-snmp, p-cpe:/a:canonical:ubuntu_linux:erlang-tftp, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:erlang-base, p-cpe:/a:canonical:ubuntu_linux:erlang-xmerl, p-cpe:/a:canonical:ubuntu_linux:erlang-manpages, p-cpe:/a:canonical:ubuntu_linux:erlang-et, p-cpe:/a:canonical:ubuntu_linux:erlang-diameter

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/17/2025

Vulnerability Publication Date: 4/16/2025

CISA Known Exploited Vulnerability Due Dates: 6/30/2025

Exploitable With

Metasploit (Erlang OTP Pre-Auth RCE Scanner and Exploit)

Reference Information

CVE: CVE-2025-32433

IAVA: 2025-A-0286-S

USN: 7443-1