PT-2022-25907 · Totolink · Totolink Nr1800X

Published 2022-10-06 · Updated 2022-10-12 · CVE-2022-41520

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TOTOLINK NR1800X version 9.1.0u.6279 B20210910

Description The issue is related to an authenticated stack overflow that occurs via the File parameter in the UploadCustomModule function. This allows for potential exploitation. No information is provided about the estimated number of potentially affected devices worldwide or real-world incidents where this issue was exploited.

Recommendations For TOTOLINK NR1800X version 9.1.0u.6279 B20210910, consider disabling the UploadCustomModule function as a temporary workaround until a patch is available. Restrict access to the File parameter in the affected function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2022-41520

Affected Products

Totolink Nr1800X

References · 4

• 🔥 https://brief-nymphea-813.notion.site/NR1800X-bof-UploadCustomModule-2bcabf2017084213b9a238fab938d782 · Exploit
• https://osv.dev/vulnerability/CVE-2022-41520 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-41520 · Security Note
• https://t.me/cibsecurity/50926 · Telegram Post