QID 43907

Date Published: 2022-10-17

QID 43907: FortiOS Information Disclosure Vulnerability in Web Proxy Error Pages (FG-IR-21-231)

A server-generated error message containing sensitive information vulnerability [CWE-550] in FortiOS and FortiProxy web proxy may allow a malicious webserver to retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.

Affected Products:
FortiOS version 7.0.3 and below
FortiOS version 6.4.9 and below
FortiOS version 6.2.10 and below
FortiOS version 6.0.14 and below

QID Detection Logic (Authenticated):
Detection checks for vulnerable version of FortiOS.

Vulnerable FortiOS may allow a malicious web server to retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.

CVSS V3 rated as Medium - 4.3 severity.

CVSS V2 rated as Medium - 4.3 severity.

Solution

Vendor has released fixes to address this vulnerability
For more details refer advisory FG-IR-21-231

Vendor References

FG-IR-21-231 - www.fortiguard.com/psirt/FG-IR-21-231

CVEs related to QID 43907

CVE-2021-43206 |

Software Advisories

Advisory ID	Software	Component	Link
FG-IR-21-231			www.fortiguard.com/psirt/FG-IR-21-231

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