Critical severity · published Oct 29, 2018
CVE-2018-18729
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
9.8
CVSS
1.3%
EPSS
No
On KEV
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 heap-based buffer overflow vulnerability in the router's web server -- httpd. While processing the 'mac' parameter for a post request, the value is directly used in a strcpy to a variable placed on the heap, which can leak sensitive information or even hijack program control flow.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AF
Ac10 Firmware · Tenda
15.03.06.23_cn · source: NVD
AF
Ac15 Firmware · Tenda
15.03.05.19_cn · source: NVD
AF
Ac18 Firmware · Tenda
15.03.05.19(6318)_cn · source: NVD
AF
Ac7 Firmware · Tenda
15.03.06.44_cn · source: NVD
AF
Ac9 Firmware · Tenda
15.03.05.19(6318)_cn · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-18729
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-18729
Exploit
https://github.com/ZIllR0/Routers/blob/master/Tenda/heapoverflow1.md
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