What is CVE-2023-23781?

CVE-2023-23781 is a stack-based buffer overflow vulnerability in FortiWeb versions 7.0.1 and below, 6.4 all versions, and version 6.3.19 and below SAML server configuration.

What is the severity of CVE-2023-23781?

The severity of CVE-2023-23781 is high, with a severity value of 8.8.

Which versions of FortiWeb are affected by CVE-2023-23781?

FortiWeb versions 7.0.1 and below, 6.4 all versions, and version 6.3.19 and below SAML server configuration are affected by CVE-2023-23781.

How can I mitigate CVE-2023-23781?

To mitigate CVE-2023-23781, it is recommended to update FortiWeb to a version that is not affected by the vulnerability.

Vulnerability/
CVE-2023-23781

high

8.8

CWE

787 119 121

16/2/2023

2/8/2024

CVE-2023-23781: Buffer Overflow

Q: How does CVE-2023-23781 impact FortiWeb?

CVE-2023-23781 allows an authenticated attacker to achieve arbitrary code execution via specifically crafted XML files.

First published: Thu Feb 16 2023(Updated: )

A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.19 and below SAML server configuration may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted XML files.

Credit: psirt@fortinet.com

Affected Software	Affected Version	How to fix
Fortinet FortiWeb	>=6.3.0<6.3.20
Fortinet FortiWeb	>=6.4.0<=6.4.2
Fortinet FortiWeb	>=7.0.0<7.0.2

Remedy

Please upgrade to FortiWeb version 7.0.2 or above Please upgrade to FortiWeb version 6.3.20 or above

Never miss a vulnerability like this again

Reference Links

https://fortiguard.com/psirt/FG-IR-22-151

Frequently Asked Questions

What is CVE-2023-23781?
CVE-2023-23781 is a stack-based buffer overflow vulnerability in FortiWeb versions 7.0.1 and below, 6.4 all versions, and version 6.3.19 and below SAML server configuration.
What is the severity of CVE-2023-23781?
The severity of CVE-2023-23781 is high, with a severity value of 8.8.
How does CVE-2023-23781 impact FortiWeb?
CVE-2023-23781 allows an authenticated attacker to achieve arbitrary code execution via specifically crafted XML files.
Which versions of FortiWeb are affected by CVE-2023-23781?
FortiWeb versions 7.0.1 and below, 6.4 all versions, and version 6.3.19 and below SAML server configuration are affected by CVE-2023-23781.
How can I mitigate CVE-2023-23781?
To mitigate CVE-2023-23781, it is recommended to update FortiWeb to a version that is not affected by the vulnerability.

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vendor/fortinet
canonical/fortinet fortiweb
version/fortinet fortiweb/6.3.0
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version/fortinet fortiweb/6.4.2
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