PT-2022-27159 · Totolink · Totolink Lr350

Published 2022-11-23 · Updated 2025-04-25 · CVE-2022-44260

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 LR350 version 9.3.5u.6369 B20220309

Description The issue is a post-authentication buffer overflow that occurs via the sPort/ePort parameter in the setIpPortFilterRules function. This allows for potential exploitation after authentication has been completed.

Recommendations For TOTOLINK LR350 version 9.3.5u.6369 B20220309, as a temporary workaround, consider disabling the setIpPortFilterRules function until a patch is available. Restrict access to the parameters sPort and ePort 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-2022-44260

Affected Products

Totolink Lr350

References · 6

• 🔥 https://brief-nymphea-813.notion.site/LR350-bof-setIpPortFilterRules-0fad7347f4d74a919a79f5745a8c5421 · Exploit
• https://osv.dev/vulnerability/CVE-2022-44260 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-44260 · Security Note
• https://t.me/cvenotify/38326 · Telegram Post
• https://t.me/cvenotify/119867 · Telegram Post
• https://t.me/cibsecurity/53422 · Telegram Post