CVE-2024-33820: a3002r Buffer Overflow — Exploit

Description

Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Specifically, they exploit the length of the wlan_ssid field triggers the overflow.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
totolink	a3002r_firmware	All
totolink	a3002r	All

References

Exploits

https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17 https://gist.github.com/Swind1er/ee095fbfe13f77a5b45b39a5aa82bd17

Frequently Asked Questions

What is CVE-2024-33820? +

Totolink AC1200 Wireless Dual Band Gigabit Router A3002R_V4 Firmware V4.0.0-B20230531.1404 is vulnerable to Buffer Overflow via the formWlEncrypt function of the boa server. Specifically, they exploit the length of the wlan_ssid field triggers the overflow. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-33820? +

CVE-2024-33820 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-33820? +

CVE-2024-33820 affects products from totolink, specifically: a3002r, a3002r_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-33820? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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