PT-2019-17454 · Tenda · Tenda Ac9 Router

Amit N. Raut · Published 2019-11-21 · Updated 2022-06-21 · CVE-2019-5072

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Tenda AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Route version AC9V1.0 Firmware V15.03.05.16multiTRU

Description An exploitable command injection issue exists in the /goform/WanParameterSetting functionality. A specially crafted HTTP POST request can cause a command injection in the DNS2 post parameters, resulting in code execution. An attacker can send an HTTP POST request with a command to trigger this issue.

Recommendations For Tenda AC9 Router AC1200 Smart Dual-Band Gigabit WiFi Route version AC9V1.0 Firmware V15.03.05.16multiTRU, as a temporary workaround, consider restricting access to the /goform/WanParameterSetting functionality until a patch is available. Avoid using the DNS2 parameter in the affected API endpoint until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2019-5072

Affected Products

Tenda Ac9 Router

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2019-0861 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-5072 · Security Note
• https://osv.dev/vulnerability/CVE-2019-5072 · Vendor Advisory
• https://t.me/cvenotify/31952 · Telegram Post