Operating System:

Published:

20 November 2019

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4388
  Denial of Service vulnerability impacts the SSL VPN service of FortiOS.
                             20 November 2019

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

Product:           FortiOS
Publisher:         FortiGuard
Operating System:  FortiOS
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-15705  

Original Bulletin: 
   https://fortiguard.com/psirt/FG-IR-19-236

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Denial of Service vulnerability impacts the SSL VPN service of FortiOS.

IR Number : FG-IR-19-236

Date      : Nov 08, 2019

Risk      : 3/5

Impact    : Denial of Service

CVE ID    : CVE-2019-15705

Summary

An Improper Input Validation vulnerability in the SSL VPN portal of FortiOS may
allow an unauthenticated remote attacker to crash the SSL VPN service by
sending a crafted POST request.

Impact

Denial of Service

Affected Products

FortiOS versions 6.2.1 and below.

FortiOS versions 6.0.6 and below.

Solutions

Please upgrade to FortiOS version 6.2.2 and above.

Please upgrade to FortiOS version 6.0.7 and above.

Acknowledgement

Fortinet is pleased to thank Qingtang Zheng from CodeSafe Team of Legendsec at
Qi'anXin Group for bringing this issue to our attention under responsible
disclosure.

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