What is the vulnerability ID for this vulnerability?

The vulnerability ID for this vulnerability is CVE-2022-43973.

What is the severity of CVE-2022-43973?

The severity of CVE-2022-43973 is high, with a severity value of 7.2.

What is the affected software for CVE-2022-43973?

The affected software for CVE-2022-43973 is Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006.

How does the vulnerability CVE-2022-43973 allow arbitrary code execution?

The vulnerability CVE-2022-43973 allows arbitrary code execution by exploiting the unvalidated user input in the Check_TSSI function within the httpd binary.

Is an attacker required to be authenticated and have administrator privileges to exploit CVE-2022-43973?

Yes, an authenticated attacker with administrator privileges is required to exploit CVE-2022-43973.

Vulnerability/
CVE-2022-43973

high

7.2

CWE

9/1/2023

3/8/2024

CVE-2022-43973: Arbitrary code execution in Linksys WRT54GL

Q: How does the vulnerability CVE-2022-43973 allow arbitrary code execution?

The vulnerability CVE-2022-43973 allows arbitrary code execution by exploiting the unvalidated user input in the Check_TSSI function within the httpd binary.

Q: Is an attacker required to be authenticated and have administrator privileges to exploit CVE-2022-43973?

Yes, an authenticated attacker with administrator privileges is required to exploit CVE-2022-43973.

First published: Mon Jan 09 2023(Updated: )

An arbitrary code execution vulnerability exisits in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. The Check_TSSI function within the httpd binary uses unvalidated user input in the construction of a system command. An authenticated attacker with administrator privileges can leverage this vulnerability over the network via a malicious POST request to /apply.cgi to execute arbitrary commands on the underlying Linux operating system as root.

Credit: trellixpsirt@trellix.com

Affected Software	Affected Version	How to fix
Linksys Wrt54gl Firmware	<=4.30.18.006
Linksys WRT54GL

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Frequently Asked Questions

What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2022-43973.
What is the severity of CVE-2022-43973?
The severity of CVE-2022-43973 is high, with a severity value of 7.2.
What is the affected software for CVE-2022-43973?
The affected software for CVE-2022-43973 is Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006.
How does the vulnerability CVE-2022-43973 allow arbitrary code execution?
The vulnerability CVE-2022-43973 allows arbitrary code execution by exploiting the unvalidated user input in the Check_TSSI function within the httpd binary.
Is an attacker required to be authenticated and have administrator privileges to exploit CVE-2022-43973?
Yes, an authenticated attacker with administrator privileges is required to exploit CVE-2022-43973.

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vendor/linksys
canonical/linksys wrt54gl firmware
version/linksys wrt54gl firmware/4.30.18.006
canonical/linksys wrt54gl

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