CVE-2017-16953 EXPLOIT
7.5
HIGH · CVSS 3.0 · EPSS 11.3% (pctl 96)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| EPSS | 11.26% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-287 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2017-12-01 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| zte | zxdsl 831cii |
| zte | zxdsl 831cii firmware |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | ZTE ZXDSL 831CII - Improper Access Restrictions | 2017-11-27 |
References
- http://packetstormsecurity.com/files/145121/ZTE-ZXDSL-831-Unauthorized-Configuration-Access-Bypass.html
- http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1008762
- https://www.exploit-db.com/exploits/43188/
- http://packetstormsecurity.com/files/145121/ZTE-ZXDSL-831-Unauthorized-Configuration-Access-Bypass.html
- http://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1008762
- https://www.exploit-db.com/exploits/43188/
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