PT-2024-5476 · Totolink · Totolink A3300R

Yhryhryhr_Miemie · Published 2024-07-21 · Updated 2024-08-01 · CVE-2024-7331

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions TOTOLINK A3300R version 17.0.0cu.557 B20221024

Description A critical issue was found in the UploadCustomModule function of the /cgi-bin/cstecgi.cgi file, which can be exploited remotely. The manipulation of the File argument leads to a buffer overflow. This can allow an attacker to impact the confidentiality, integrity, and availability of protected information by sending a specially crafted POST request to the "/cgi-bin/cstecgi.cgi" endpoint. The exploit has been disclosed to the public.

Recommendations For TOTOLINK A3300R version 17.0.0cu.557 B20221024, as a temporary workaround, consider disabling the UploadCustomModule function until a patch is available. Restrict access to the /cgi-bin/cstecgi.cgi file to minimize the risk of exploitation. Avoid using the File argument in the affected endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

BDU:2024-06125

CVE-2024-7331

Affected Products

Totolink A3300R

References · 9

• 🔥 https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3300R/UploadCustomModule.md · Exploit
• https://bdu.fstec.ru/vul/2024-06125 · Security Note
• https://osv.dev/vulnerability/CVE-2024-7331 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-7331 · Security Note
• https://t.me/cvenotify/88286 · Telegram Post
• https://vuldb.com/?ctiid.273254 · Note
• https://vuldb.com/?id.273254 · Note
• https://t.me/cvedetector/2194 · Telegram Post
• https://vuldb.com/?submit.378351 · Note