FG-IR-23-151: DOS in headers management
First published: Tue Nov 14 2023(Updated: )
A null pointer dereference [CWE-476] in FortiOS and FortiProxy SSL VPN may allow an authenticated attacker to perform a DoS attack on the device via specifically crafted HTTP requests.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fortinet FortiOS IPS Engine | =. | |
| Fortinet FortiOS IPS Engine | >=7.2.0<=7.2.5 | |
| Fortinet FortiOS IPS Engine | >=7.0.0<=7.0.12 | |
| Fortinet FortiOS IPS Engine | >=6.4 | |
| Fortinet FortiOS IPS Engine | >=6.2 | |
| Fortinet FortiOS IPS Engine | >=6.0 | |
| Fortinet FortiProxy | >=7.2.0<=7.2.4 | |
| Fortinet FortiProxy | >=7.0.0<=7.0.10 | |
| Fortinet FortiProxy | >=2.0 | |
| Fortinet FortiProxy | >=1.2 | |
| Fortinet FortiProxy | >=1.1 | |
| Fortinet FortiProxy | >=1.0 |
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Reference Links
Frequently Asked Questions
What is the severity of FG-IR-23-151?
The severity of FG-IR-23-151 is critical as it allows for a denial of service attack on FortiOS and FortiProxy SSL VPN.
How do I fix FG-IR-23-151?
To fix FG-IR-23-151, upgrade to the recommended FortiOS or FortiProxy versions which mitigate the vulnerability.
What devices are affected by FG-IR-23-151?
FG-IR-23-151 affects FortiOS versions prior to 7.4.1 and FortiProxy versions prior to 7.2.5.
Can FG-IR-23-151 be exploited remotely?
Yes, FG-IR-23-151 can be exploited remotely by an authenticated attacker through crafted HTTP requests.
What is a null pointer dereference in the context of FG-IR-23-151?
A null pointer dereference in FG-IR-23-151 refers to an error that can crash the application, leading to a denial of service condition.
- collector/fortiguard-psirt-latest
- source/FortiGuard
- alias/CVE-2023-36641
- agent/last-modified-date
- agent/type
- agent/first-publish-date
- agent/references
- agent/weakness
- agent/severity
- agent/description
- agent/event
- agent/softwarecombine
- agent/title
- agent/source
- agent/tags
- collector/fortiguard-psirt
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/fortinet
- canonical/fortinet fortios ips engine
- version/fortinet fortios ips engine/.
- version/fortinet fortios ips engine/7.2.0
- version/fortinet fortios ips engine/7.2.5
- version/fortinet fortios ips engine/7.0.0
- version/fortinet fortios ips engine/7.0.12
- version/fortinet fortios ips engine/6.4
- version/fortinet fortios ips engine/6.2
- version/fortinet fortios ips engine/6.0
- canonical/fortinet fortiproxy
- version/fortinet fortiproxy/7.2.0
- version/fortinet fortiproxy/7.2.4
- version/fortinet fortiproxy/7.0.0
- version/fortinet fortiproxy/7.0.10
- version/fortinet fortiproxy/2.0
- version/fortinet fortiproxy/1.2
- version/fortinet fortiproxy/1.1
- version/fortinet fortiproxy/1.0