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             AUSCERT External Security Bulletin Redistribution

  CVE-2004-1653 SSH port forwarding exposes unprotected internal services
                               29 June 2020


        AusCERT Security Bulletin Summary

Product:           OpenSSH
Publisher:         Fortiguard
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Unknown/Unspecified
                   Access Privileged Data   -- Unknown/Unspecified
Resolution:        Patch/Upgrade
CVE Names:         CVE-2004-1653  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

CVE-2004-1653 SSH port forwarding exposes unprotected internal services

IR Number : FG-IR-19-292

Date      : Jun 26, 2020

Risk      : 3/5

Impact    : Information Disclosure, Privilege Escalation

CVE ID    : CVE-2004-1653

CVE ID    : CVE-2004-1653

CVE ID    : CVE-2004-1653


An improper access control vulnerability in the admin SSH console of multiple
products may allow an authenticated user to access internal only system
services via using SSH local port forwarding.

A successful attack needs an authenticated admin SSH user to set up a port
bounce to product internal only services via SSH local port forwarding;
potential consequences are information disclosure and/or privilege escalation.


Information Disclosure, Privilege Escalation

Affected Products

FortiOS is not impacted.

FortiSwitch is not impacted.

FortiAnalyzer 6.2.0 to 6.2.3, 6.0.8 and below

FortiManager 6.2.0 to 6.2.3, 6.0.8 and below

FortiAP-S/W2 6.2.3 and below

FortiAP-U 6.0.1 and below


FortiAnalyzer: upgrade to 6.0.9 or 6.2.4 or above

FortiManager: upgrade to 6.0.9 or 6.2.4 or above

FortiAP-S/W2: upgrade to 6.2.4 or above

FortiAP-U: upgrade to 6.0.2 or above


Disable admin SSH console, or set trusted hosts to restrict admin SSH console
access to trusted users, to prevent scenarios where an attacker who acquired
valid user accounts via phishing / social engineering uses those to perform
this attack.


Fortinet is pleased to thank Renee Trisberg from SpectX ( https://
www.spectx.com/ ) for reporting this vulnerability under FortiAnalyzer through
responsible disclosure.


  o OpenSSH CVE-2004-1653

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