Buffer overflow in Linksys WRT54GL
CVE-2022-43970

7.2HIGH

Key Information:

Vendor
Linksys
Vendor
CVE Published:
9 January 2023

Summary

A buffer overflow flaw exists in the Linksys WRT54GL Wireless-G Broadband Router, specifically in the Start_EPI function within the httpd binary. This vulnerability allows an authenticated attacker with administrator privileges to execute arbitrary commands on the Linux operating system as root. The exploit can be executed over the network by sending a specially crafted POST request to the /apply.cgi endpoint, potentially compromising the device's security and integrity. Users should ensure their firmware is updated to mitigate this risk.

Affected Version(s)

WRT54GL Wireless-G Broadband Router Firmware <= 4.30.18.006

References

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jessie Chick of Trellix ARC
.