MikroTik RouterOS 5.x < 5.26 / 6.x < 6.3 sshd Unspecified Remote Heap Corruption

This script is Copyright (C) 2013 Tenable Network Security, Inc.


Synopsis :

The remote networking device is affected by a heap corruption
vulnerability.

Description :

According to its self-reported version, the remote networking device
is running a version of MikroTik 5.x before 5.26 or 6.x before 6.3.
It, therefore, reportedly has a heap corruption vulnerability in its
sshd component that can be leveraged by an unauthenticated, remote
attacker to crash the SSH service.

See also :

http://www.nessus.org/u?38c2e68b
http://www.securityfocus.com/archive/1/528394/30/0/threaded
http://forum.mikrotik.com/viewtopic.php?p=384465#p384465
http://www.mikrotik.com/download/CHANGELOG_5
http://www.mikrotik.com/download/CHANGELOG_6

Solution :

Upgrade to MikroTik RouterOS 5.26 / 6.3 or later.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 4.1
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Misc.

Nessus Plugin ID: 70942 ()

Bugtraq ID: 62110

CVE ID: