-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.0405
        Buffer overflow vulnerability in FortiProxy SSL VPN through
                          a crafted POST request
                              5 February 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           FortiProxy SSL VPN
Publisher:         FortiGuard
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-13381  

Reference:         ESB-2019.1822

Original Bulletin: 
   https://fortiguard.com/psirt/FG-IR-20-232

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

Buffer overflow vulnerability in FortiProxy SSL VPN through a crafted POST request

IR Number : FG-IR-20-232

Date      : Feb 01, 2021

Risk      : 3/5

CVSSv3 Score: 5.2

Impact    : denial of service

CVE ID    : CVE-2018-13381

Summary

A buffer overflow vulnerability in the SSL VPN portal of FortiProxy may allow
an unauthenticated, remote attacker to perform a Denial of Service attack by
sending a specifically crafted POST request with a large msg value.

Impact

denial of service

Affected Products

FortiProxy versions 2.0.0 FortiProxy versions 1.2.8 and below. FortiProxy
versions 1.1.6 and below. FortiProxy versions 1.0.7 and below.

Solutions

Please upgrade to FortiProxy versions 1.2.9 and above. Please upgrade to
FortiProxy versions 2.0.1 and above.

Acknowledgement

Fortinet is pleased to thank Meh Chang and Orange Tsai from DEVCORE Security
Research Team for reporting this vulnerability under responsible disclosure.

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=tw7i
-----END PGP SIGNATURE-----