Dropbear SSH Remote < 0.43.0 Privilege Escalation

high Nessus Network Monitor Plugin ID 700025


The remote host is running an outdated SSH server that is vulnerable to a remote privilege escalation attack vector.


Dropbear is an SSH client and server application. Versions of Dropbear SSH server prior to 0.43.0 are potentially vulnerable to a flaw related to uninitialized variables in the Digital Signature Standard (DSS) verification code. This may allow a remote attacker to gain control of the server. No further details have been provided by the vendor.


Update to Dropbear version 0.43.0 or later.

See Also


Plugin Details

Severity: High

ID: 700025

Family: SSH

Published: 3/28/2017

Updated: 3/6/2019

Nessus ID: 14234

Risk Information


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: E:ND/RL:OF/RC:C


Risk Factor: High

Base Score: 7.3

Temporal Score: 7

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

Temporal Vector: E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:matt_johnston:dropbear_ssh_server

Patch Publication Date: 7/16/2004

Vulnerability Publication Date: 7/16/2004

Reference Information

CVE: CVE-2004-2486

BID: 10803