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CVE-2021-27705

nvd nist
Published: Apr 14, 2021Modified: Nov 21, 2024

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9.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

Description

Buffer Overflow in Tenda G1 and G3 routers with firmware v15.11.0.17(9502)_CN allows remote attackers to execute arbitrary code via a crafted action/"qosIndex "request. This occurs because the "formQOSRuleDel" function directly passes the parameter "qosIndex" to strcpy without limit.

Affected (2)

Tenda
2 products
G1 Firmware
G3 Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
G1 Firmware
Version v15.11.0.17(9502)_cn
Running on/withPlatform Versions
Tenda
G1
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
G3 Firmware
Version v15.11.0.17(9502)_cn
Running on/withPlatform Versions
Tenda
G3
All versions

Related CWEs

CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (2)

Source: cve@mitre.org
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.