CVE-2018-7933 Path traversal in HiRouter-CD20, WS5200
Attackers can overwrite arbitrary files via malicious APK plugins, leading to code execution or privilege escalation on Huawei home gateways.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-7933?
CVE-2018-7933 is a high-severity path traversal vulnerability in Huawei Technologies Co., Ltd. HiRouter-CD20, WS5200, published on 10 May 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Huawei home gateway products HiRouter-CD20 and WS5200 with the versions before HiRouter-CD20-10 1.9.6 and the versions before WS5200-10 1.9.6 have a path traversal vulnerability. Due to the lack of validation while these home gateway products install APK plugins, an attacker tricks a user into installing a malicious APK plugin, and plugin can overwrite arbitrary file of devices. Successful exploit may result in arbitrary code execution or privilege escalation.
Weakness: CWE-22
Which versions are affected by CVE-2018-7933?
It affects 2 products.
Products include Huawei Hirouter-Cd20 Firmware, Huawei Ws5200 Firmware.
How do I fix CVE-2018-7933?
No fix has been published for CVE-2018-7933 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2018-7933 being exploited?
There is no known exploitation of CVE-2018-7933 in the wild and no public exploit code.
Other vulnerabilities in Huawei Technologies Co., Ltd. HiRouter-CD20, WS5200
Sources
Also known as GHSA-4xmf-8wjf-4hrh.