#VU40903 Cross-site scripting in FortiAuthenticator - CVE-2015-1459

Vulnerability identifier: #VU40903

Vulnerability risk: Medium

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-1459

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FortiAuthenticator
Client/Desktop applications / Other client software

Vendor: Fortinet, Inc

Description

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in Fortinet FortiAuthenticator 3.0.0 when processing operation parameter to cert/scep/. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FortiAuthenticator: 3.0.0

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External links
https://packetstormsecurity.com/files/130156/Fortinet-FortiAuthenticator-XSS-Disclosure-Bypass.html
https://secunia.com/advisories/62836
https://www.fortiguard.com/advisory/FG-IR-15-003/
https://www.security-assessment.com/files/documents/advisory/Fortinet_FortiAuthenticator_Multiple_Vulnerabilities.pdf
https://www.securityfocus.com/bid/72378
https://exchange.xforce.ibmcloud.com/vulnerabilities/100561

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.