CVE-2019-18371: mi millet_router_3g_firmware Path Traversal

Vulnerability summary

CVE-2019-18371 is a high (CVSS 7.5) Path Traversal vulnerability in mi millet_router_3g_firmware. EPSS estimates a 55.87% chance of exploitation in the next 30 days, higher than 99% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 23-10-2019
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

An issue was discovered on Xiaomi Mi WiFi R3G devices before 2.28.23-stable. There is a directory traversal vulnerability to read arbitrary files via a misconfigured NGINX alias, as demonstrated by api-third-party/download/extdisks../etc/config/account. With this vulnerability, the attacker can bypass authentication.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.