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PSIRT Advisories

The FortiGuard Labs Product Security Incident Response Team (PSIRT) continually test Fortinet hardware and software products, looking for vulnerabilities and weaknesses. Any such findings are fed back to Fortinet's development teams and serious issues are described along with protective solutions in the advisories below.

Slow HTTP DoS Attacks Mitigation
An Uncontrolled Resource Consumption vulnerability in multiple products may allow an attacker to cause web service portal denial...
FortiAnalyzer 5.6, 6.0, 6.2 FortiAP 6.0, 6.2 FortiManager 5.6, 6.0, 6.2 FortiOS 6.0, 6.2 FortiSwitch 6.0, 6.2
Feb 03, 2020 Risk IR Number: FG-IR-19-013
Privilege escalation and DoS in FortiClient for Linux through local IPC socket
A privilege escalation vulnerability in FortiClient for Linux may allow a user with low privilege to run root system commands,...
Jan 27, 2020 Risk IR Number: FG-IR-19-238
PMKID attack on WPA/WPA2 WiFi networks
Makers of popular WiFi hacking tool hashcat have discovered a way to improve password brute-forcing of the WPA/WPA2 wifi network...
Jan 27, 2020 Risk IR Number: FG-IR-18-199
FortiSIEM - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
An Improper Neutralization of Input vulnerability in the description and title parameters of a Device Maintenance Schedule in...
Jan 27, 2020 Risk IR Number: FG-IR-19-197
FortiSIEM default SSH key for the "tunneluser" account is the same across all appliances
A use of hard-coded cryptographic key vulnerability in FortiSIEM may allow a remote unauthenticated attacker to obtain SSH access...
Jan 15, 2020 Risk IR Number: FG-IR-19-296
FortiSIEM Database hard-coded Credentials
A hard-coded password vulnerability in the FortiSIEM database component may allow attackers to access the device database via...
FortiSIEM 5.0, 5.1, 5.2
Jan 13, 2020 Risk IR Number: FG-IR-19-195
XSS vulnerability in FortiAuthenticator OWA Agent
An improper neutralization of input during web page generation in FortiAuthenticator Agent for Outlook Web Access may allow an...
Jan 06, 2020 Risk IR Number: FG-IR-19-104
Dragonblood vulnerabilities in WiFi WPA3 standard implementation
Multiple vulnerabilities, referred to as Dragonblood, exist in WiFi WPA3 standard implementation .Dragonblood vulnerabilities...
Jan 03, 2020 Risk IR Number: FG-IR-19-107
FortiMail admin privilege escalation through improper user profile control
Two improper access control vulnerabilities in FortiMail admin webUI may allow administrators to perform privileged functions...
Jan 03, 2020 Risk IR Number: FG-IR-19-237
FortiOS SSL VPN web portal Host Header Redirection
A Host Header Redirection vulnerability exists in FortiOS SSL-VPN web portal: when an attacker submits specially crafted HTTP...
FortiGate 5.4, 5.6, 6.0
Jan 03, 2020 Risk IR Number: FG-IR-19-002
Hardcoded cryptographic key in the FortiGuard services communication protocol
Use of a hardcoded cryptographic key in the FortiGuard services communication protocol may allow a Man in the middle with knowledge...
Dec 05, 2019 Risk IR Number: FG-IR-18-100
TCP SACK panic attack- Linux Kernel Vulnerabilities- CVE-2019-11477, CVE-2019-11478 & CVE-2019-11479
CVE-2019-11477:The Linux kernel is vulnerable to an integer overflow in the 16 bit width of  TCP_SKB_CB(skb)->tcp_gso_segs.  A...
Nov 29, 2019 Risk IR Number: FG-IR-19-180
FortiOS multiple pre-auth XSS vulnerabilities on SSL VPN
Failure to sanitize the error or message handling parameters in the SSL VPN web portal may allow an attacker to perform a Cross-site...
Nov 26, 2019 Risk IR Number: FG-IR-18-383
SSL VPN buffer overrun when parsing javascript href content
A heap buffer overflow vulnerability in the FortiOS SSL VPN web portal may cause the SSL VPN web service termination for logged...
Nov 26, 2019 Risk IR Number: FG-IR-18-388
FortiOS system file leak through SSL VPN via specially crafted HTTP resource requests
A path traversal vulnerability in the FortiOS SSL VPN web portal may allow an unauthenticated attacker to download FortiOS system...
Nov 26, 2019 Risk IR Number: FG-IR-18-384