Fortinet FortiWeb up to 6.3.19/7.0.1 CA Sign stack-based overflow

Summaryinfo

A vulnerability described as critical has been identified in Fortinet FortiWeb up to 6.3.19/7.0.1. This affects an unknown part of the component CA Sign Handler. Executing a manipulation can lead to stack-based overflow. This vulnerability is tracked as CVE-2022-30306. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Fortinet FortiWeb up to 6.3.19/7.0.1. This vulnerability affects an unknown code block of the component CA Sign Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A stack-based buffer overflow vulnerability [CWE-121] in the CA sign functionality of FortiWeb version 7.0.1 and below, 6.4 all versions, version 6.3.19 and below may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted password.

The weakness was disclosed 02/16/2023. The advisory is shared for download at fortiguard.com. This vulnerability was named CVE-2022-30306 since 05/06/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/16/2023).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Firewall Software

Vendor

• Fortinet

Name

• FortiWeb

Version

• 6.3.0
• 6.3.1
• 6.3.2
• 6.3.3
• 6.3.4
• 6.3.5
• 6.3.6
• 6.3.7
• 6.3.8
• 6.3.9
• 6.3.10
• 6.3.11
• 6.3.12
• 6.3.13
• 6.3.14
• 6.3.15
• 6.3.16
• 6.3.17
• 6.3.18
• 6.3.19
• 7.0.0
• 7.0.1

License

• commercial

Website

• Vendor: https://www.fortinet.com/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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