FG-IR-24-282: File-Filter Bypass in Explicit Web Proxy Policy

Published Jan 14, 2025
·
Updated

An Improper Neutralization of CRLF Sequences in HTTP Headers ('http response splitting') vulnerability [CWE-113] in FortiOS, FortiProxy and FortiSASE may allow a remote unauthenticated attacker to bypass the file filter via crafted HTTP header.

Affected Software

5 affected componentsFixes available
Fortinet FortiOS=.
Fortinet FortiOS>=7.4.0<=7.4.4
Fortinet FortiOS>=7.2.0<=7.2.8
Fortinet FortiProxy>=7.4.0<=7.4.5
Fortinet FortiProxy>=7.2.0<=7.2.11

Event History

Jan 14, 2025
Advisory Published
via FortiGuard·12:00 AM
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Frequently Asked Questions

1

What is the severity of FG-IR-24-282?

The severity of FG-IR-24-282 is classified as critical due to the potential for remote unauthenticated exploitation.

2

How do I fix FG-IR-24-282?

To fix FG-IR-24-282, upgrade FortiOS, FortiProxy, or FortiSASE to the recommended versions specified in the advisory.

3

Which products are affected by FG-IR-24-282?

FG-IR-24-282 affects multiple versions of FortiOS and FortiProxy, specifically versions below 7.6.1 and 7.4.6 respectively.

4

Can FG-IR-24-282 be exploited without authentication?

Yes, FG-IR-24-282 can be exploited by remote unauthenticated attackers through specially crafted HTTP headers.

5

What is the nature of FG-IR-24-282 vulnerability?

FG-IR-24-282 is an Improper Neutralization of CRLF Sequences in HTTP Headers, commonly known as HTTP response splitting.

Contact

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