CVE-2017-16953 Missing authorization in n/a
Remote attackers can modify PPPoE configurations on ZTE ZXDSL 831CII devices without authentication via unauthenticated GET requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-16953?
CVE-2017-16953 is a high-severity missing authorization vulnerability in n/a, published on 1 Dec 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
connoppp.cgi on ZTE ZXDSL 831CII devices does not require HTTP Basic Authentication, which allows remote attackers to modify the PPPoE configuration or set up a malicious configuration via a GET request.
Weakness: CWE-287
Which versions are affected by CVE-2017-16953?
It affects 1 product.
Products include Zte Zxdsl 831cii Firmware.
How do I fix CVE-2017-16953?
No fix has been published for CVE-2017-16953 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2017-16953 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-16953 exists.
Public exploit code: 1 Exploit-DB entry.
Sources
Also known as GHSA-96hm-5phv-9888.