Vulnerability Report

CVE-2017-16953

Title: Zte Zxdsl 831Cii Auth Bypass

Auth Bypass

Proof Of Concept

PoC Available for CVE-2017-16953

CWE Category CWE-287

Published Date Dec 01, 2017

Modified Date Jun 17, 2026

Exploit Status Available

Score 7.5 CVSS v3.0

Exploit Probability (EPSS)

11.26%

Vulnerability Summary

CVE-2017-16953: 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.

Impacted Vendors

zte 1

Reference Links

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/

CVSS v3.0

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

5.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:N/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns