Dropbear SSH Server < 0.47.0 svr_ses.childpidsize Remote Overflow

Medium Nessus Network Monitor Plugin ID 3331

Synopsis

The remote host is vulnerable to a buffer overflow.

Description

The remote host is running a version of the Dropbear SSH server prior to 0.47.0 that is vulnerable to a remote buffer overflow. An attacker exploiting this flaw would need to be able to log into a valid account. After logging in, the user would send a malformed request to the SSH server which would result in a buffer overflow and execution of arbitrary code.

Solution

Upgrade to version 0.47.0 or higher.

See Also

http://matt.ucc.asn.au/dropbear/dropbear.html

Plugin Details

Severity: Medium

ID: 3331

File Name: 3331.prm

Family: SSH

Published: 2005/12/19

Modified: 2017/03/28

Dependencies: 700029, 3059

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSSv3

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS3#AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Temporal Vector: CVSS3#E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:matt_johnston:dropbear

Reference Information

CVE: CVE-2005-4178

BID: 15923

OSVDB: 21847