PT-2023-27665 · Tenda · Tenda Ac6

Published 2023-08-30 · Updated 2023-09-07 · CVE-2023-40839

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda AC6 version US AC6V1.0BR V15.03.05.16 multi TD01.bin

Description The issue concerns a command execution vulnerability in the sub ADF3C function. This vulnerability is exploited through the formSetIptv function, which obtains the list and vlanId fields and passes them unfiltered to the sub ADF3C function, allowing for command execution.

Recommendations For Tenda AC6 version US AC6V1.0BR V15.03.05.16 multi TD01.bin, as a temporary workaround, consider disabling the sub ADF3C function until a patch is available. Restrict access to the formSetIptv function to minimize the risk of exploitation. Avoid using the list and vlanId fields in the affected function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2023-40839

Affected Products

Tenda Ac6

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2023-40839 · Security Note
• https://osv.dev/vulnerability/CVE-2023-40839 · Vendor Advisory
• https://t.me/cibsecurity/69468 · Telegram Post
• ❌ https://github.com/XYIYM/Digging/blob/main/Tenda/AC6/cmd/3/3.md · Note, Deleted