PT-2022-19744 · Totolink · Totolink A3100R

Hijin0925 · Published 2022-05-18 · Updated 2022-05-26 · CVE-2022-29640

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TOTOLINK A3100R versions V4.1.2cu.5050 B20200504 through V4.1.2cu.5247 B20211129

Description The issue is related to a stack overflow via the comment parameter in the setPortForwardRules function, allowing attackers to cause a Denial of Service (DoS) via a crafted POST request.

Recommendations For versions V4.1.2cu.5050 B20200504 through V4.1.2cu.5247 B20211129, consider disabling the setPortForwardRules function until a patch is available to prevent exploitation. Restrict access to the vulnerable function to minimize the risk of Denial of Service (DoS) attacks. 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-2022-29640

Affected Products

Totolink A3100R

References · 4

• 🔥 https://github.com/shijin0925/IOT/blob/master/TOTOLINK%20A3100R/3.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-29640 · Security Note
• https://osv.dev/vulnerability/CVE-2022-29640 · Vendor Advisory
• https://t.me/cibsecurity/42899 · Telegram Post