PT-2018-14585 · Tenda · Tenda Ac18+4

Published 2018-10-27 · Updated 2018-12-14 · CVE-2018-18707

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 Tenda AC7 version 15.03.06.44 CN Tenda AC9 version 15.03.05.19(6318) CN Tenda AC10 version 15.03.06.23 CN Tenda AC15 version 15.03.05.19 CN Tenda AC18 version 15.03.05.19(6318) CN

Description A buffer overflow issue exists in the router's web server, specifically in the httpd. The problem arises when the ssid parameter in a post request is processed, as its value is directly used in a strcpy to a local variable on the stack. This action overrides the return address of the function, leading to a potential buffer overflow.

Recommendations For Tenda AC7 version 15.03.06.44 CN, update the firmware to a version that addresses this issue. For Tenda AC9 version 15.03.05.19(6318) CN, update the firmware to a version that addresses this issue. For Tenda AC10 version 15.03.06.23 CN, update the firmware to a version that addresses this issue. For Tenda AC15 version 15.03.05.19 CN, update the firmware to a version that addresses this issue. For Tenda AC18 version 15.03.05.19(6318) CN, update the firmware to a version that addresses this issue. As a temporary workaround, consider restricting access to the httpd service until a patch is available. Avoid using the ssid parameter in post requests to the vulnerable httpd service until the issue is resolved.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2018-18707

Affected Products

Tenda Ac10

Tenda Ac15

Tenda Ac18

Tenda Ac7

Tenda Ac9

References · 3

• 🔥❌ https://github.com/zsjevilhex/iot/blob/master/route/tenda/tenda-07/Tenda.md · Exploit, Deleted
• https://nvd.nist.gov/vuln/detail/CVE-2018-18707 · Security Note
• https://osv.dev/vulnerability/CVE-2018-18707 · Vendor Advisory