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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.

FortiOS SSL VPN webportal user credentials present in plain text in client side javascript file
An information disclosure vulnerability exists in the SSL-VPN web portal of FortiOS: when pages bookmarked in the web portal use...
Jun 22, 2018 Risk IR Number: FG-IR-18-027
OpenRedirect in Malicious Generated PDF Document on FortiAnalyzer and FortiManager
An open redirect vulnerability exists in FortiAnalyzer and FortiManager when a user of the GUI is converting an HTML table to...
Jun 22, 2018 Risk IR Number: FG-IR-18-022
FortiAnalyzer and FortiManager admin user avatar setting improper access control
An improper access control vulnerability exists in FortiAnalyzer and FortiManager, whereby a regular user of the GUI can edit...
Jun 22, 2018 Risk IR Number: FG-IR-18-014
FortiManager XSS vulnerability when view config under Revision History
A potential Cross-site Scripting (XSS) vulnerability exists in FortiManager: Displayed data is not sanitized when an administrator...
Jun 22, 2018 Risk IR Number: FG-IR-18-006
ISC BIND vulnerabilities
Multiple Denial of Service (DoS) or process crash vulnerabilities (CVE-2018-5737, CVE-2018-5736) are affecting ISC BIND.
Jun 05, 2018 Risk IR Number: FG-IR-18-112
Potential XSS in "CSRF validation failure" page due to lack of referer sanitization
On FortiAuthenticator, a HTML page is returned to the user when the CSRF validation fails on referer mismatch. This page displays...
May 29, 2018 Risk IR Number: FG-IR-18-059
Firewall information leak to regular SSL VPN web portal users
A SSL VPN user logged in via the web portal can access internal FortiOS configuration information (eg: addresses) via specifically...
May 18, 2018 Risk IR Number: FG-IR-17-231
FortiOS local privilege escalation via malicious use of USB storage devices
An admin user with super_admin privileges can execute an arbitrary binary contained on an USB drive plugged to a FortiGate, via...
May 18, 2018 Risk IR Number: FG-IR-17-245
FortiOS SSL Deep-Inspection Proxy Mode badssl.com Compliance
US-Cert published a document at https://www.us-cert.gov/ncas/alerts/TA17-075A which outlines some security flaws that may be introduced...
May 16, 2018 Risk IR Number: FG-IR-17-160
Use of hardcoded credentials for communication between Meru access points and FortiWLC
FortiWLC included two hardcoded accounts which were used by Meru Access Points to report core dumps; these accounts had read/write...
May 04, 2018 Risk IR Number: FG-IR-17-274
FortiClient insecure VPN credential storage and encryption
In certain conditions, FortiClient users' VPN credentials are stored in improperly secured locations and unsafely encrypted.[CVE-2017-14184]When...
Apr 20, 2018 Risk IR Number: FG-IR-17-214
AMD processors affected by vulnerabilities: Ryzenfall, Fallout, Chimera and Masterkey
A collection of AMD vulnerabilities known as "Ryzenfall, Fallout, Chimera, Masterkey" has been released. Attackers in possession...
FortiAnalyzer FortiAP 5.2, 5.6 FortiOS 5.2, 4.2 FortiSwitch
Apr 13, 2018 Risk IR Number: FG-IR-18-046
BranchScope: New CPU Side-Channel Attack
A new side-channel attack that takes advantage of the speculative execution feature of modern processors to recover data from...
Apr 03, 2018 Risk IR Number: FG-IR-18-067
FortiWeb's cookie tampering protection can be bypassed by erasing the FortiWeb session cookie
An improper access control vulnerability in FortiWeb's Signed Security mode may allow an attacker to disable the cookie tampering...
Mar 06, 2018 Risk IR Number: FG-IR-17-279
HTTP Host header attacks against web proxy disclaimer response webpage
The FortiOS web proxy disclaimer page is potentially vulnerable to an XSS attack, via maliciously crafted "Host" headers in user...
Jan 22, 2018 Risk IR Number: FG-IR-17-262