PT-2021-10724 · Tenda · Tenda Ac-10U Ac1200 Router

Published 2021-10-29 · Updated 2022-10-26 · CVE-2020-22079

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 AC-10U AC1200 Router version US AC10UV1.0RTL V15.03.06.48 multi TDE01

Description A stack-based buffer overflow issue allows remote attackers to execute arbitrary code via the timeZone parameter to the "goform/SetSysTimeCfg" endpoint. This enables attackers to potentially gain control over the affected device.

Recommendations For Tenda AC-10U AC1200 Router version US AC10UV1.0RTL V15.03.06.48 multi TDE01, consider disabling access to the "goform/SetSysTimeCfg" endpoint until a patch is available. Additionally, restrict the use of the timeZone 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

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-22079

Affected Products

Tenda Ac-10U Ac1200 Router

References · 8

• 🔥❌ https://github.com/1sd3d/Tendown/tree/master/PoCs/Auth/bof11 · Exploit, Deleted
• 🔥 https://github.com/Lyc-heng/routers/blob/main/routers/stack1.md · Exploit
• https://osv.dev/vulnerability/CVE-2020-22079 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-22079 · Security Note
• https://t.me/cibsecurity/31445 · Telegram Post
• https://t.me/cvenotify/22631 · Telegram Post
• https://t.me/cvenotify/22870 · Telegram Post
• https://cwe.mitre.org/data/definitions/121.html · Note