Vulnerability Details : CVE-2022-43970
Potential exploit
A buffer overflow vulnerability exists in Linksys WRT54GL Wireless-G Broadband Router with firmware <= 4.30.18.006. A stack-based buffer overflow in the Start_EPI function within the httpd binary allows an authenticated attacker with administrator privileges to execute arbitrary commands on the underlying Linux operating system as root. This vulnerablity can be triggered over the network via a malicious POST request to /apply.cgi.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2022-43970
- cpe:2.3:o:linksys:wrt54gl_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-43970
2.76%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 85 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-43970
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST | |
|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
Trellix |
CWE ids for CVE-2022-43970
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: trellixpsirt@trellix.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2022-43970
-
https://youtu.be/73-1lhvJPNg
Vuln Research 101 (Part 1) - Reconning the Linksys WRT54GL - YouTubeExploit;Third Party Advisory
-
https://youtu.be/TeWAmZaKQ_w
Vuln Research 101 (Part 2) - Hacking the Linksys WRT54GL via command injection - YouTubeExploit;Third Party Advisory
-
https://youtu.be/RfWVYCUBNZ0
Vuln Research 101 (Part 3) - Hacking the Linksys WRT54GL via buffer overflow - YouTubeExploit;Third Party Advisory
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