PT-2021-19451 · Tenda · Tenda Ac9

Published 2021-10-29 · Updated 2021-11-03 · CVE-2021-31627

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda AC9 versions V1.0 through V15.03.05.19(6318) Tenda AC9 V3.0 version V15.03.06.42 multi

Description The issue allows attackers to execute arbitrary code via the index parameter, which is related to a Buffer Overflow. This can lead to the execution of arbitrary code.

Recommendations For Tenda AC9 versions V1.0 through V15.03.05.19(6318), consider disabling access to the vulnerable parameter index until a patch is available. For Tenda AC9 V3.0 version V15.03.06.42 multi, restrict access to the API endpoint that utilizes the index parameter 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

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-31627

Affected Products

Tenda Ac9

References · 7

• 🔥 https://github.com/Lyc-heng/routers/blob/main/routers/stack3.md · Exploit
• https://osv.dev/vulnerability/CVE-2021-31627 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31627 · Security Note
• https://t.me/cibsecurity/31447 · Telegram Post
• https://t.me/cvenotify/22918 · Telegram Post
• http://tenda.com · Note
• https://t.me/cvenotify/22629 · Telegram Post