CVE-2018-18729: tenda ac10_firmware Out-of-bounds Write

Vulnerability summary

CVE-2018-18729 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in tenda ac10_firmware. EPSS estimates a 1.35% chance of exploitation in the next 30 days, higher than 71.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 28-10-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.