Vulnerability CVE-2018-18731


Published: 2018-10-29

Description:
An issue was discovered on Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices. There is a buffer overflow vulnerability in the router's web server -- httpd. While processing the 'deviceMac' parameter for a post request, the value is directly used in a sprintf to a local variable placed on the stack, which overrides the return address of the function.

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

Vendor: Tenda
Product: Ac7 firmware 
Version: 15.03.06.44_cn;
Product: Ac10 firmware 
Version: 15.03.06.23_cn;
Product: Ac15 firmware 
Version: 15.03.05.19_cn;
Product: Ac18 firmware 
Version: 15.03.05.19(6318)_cn;
Product: Ac9 firmware 
Version: 15.03.05.19(6318)_cn;

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete

 References:
https://github.com/ZIllR0/Routers/blob/master/Tenda/stack4.md

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