Security Advisory - Path Traversal Vulnerability in Some Huawei Products

There is a path traversal vulnerability in some Huawei products. The vulnerability is due to that the software 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 software does not properly validate the pathname. Successful exploit could allow the attacker to access a location that is outside of the restricted directory by a crafted filename. (Vulnerability ID: HWPSIRT-2020-04159)

This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2021-22440.

Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:

<http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210630-01-pathtraversal-en&gt;