VDB-110146 · CVE-2017-16953 · EDB-ID 43188

ZTE ZXDSL 831CII HTTP Basic Authentication connoppp.cgi GET Request improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in ZTE ZXDSL 831CII. This vulnerability affects unknown code of the file connoppp.cgi of the component HTTP Basic Authentication. Executing a manipulation as part of GET Request can lead to improper authentication. This vulnerability is handled as CVE-2017-16953. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability has been found in ZTE ZXDSL 831CII (affected version unknown) and classified as critical. This vulnerability affects an unknown functionality of the file connoppp.cgi of the component HTTP Basic Authentication. The manipulation as part of a GET Request leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 11/27/2017. The weakness was released 12/01/2017 as EDB-ID 43188 as not defined exploit (Exploit-DB). The advisory is available at exploit-db.com. This vulnerability was named CVE-2017-16953 since 11/26/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (43188). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

ZXDSL 831CII

License

commercial

Website

Vendor: https://www.zte.com.cn/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 60075
OpenVAS Name: ZTE ZXDSL 831CII Access Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

11/26/2017 🔍
11/27/2017 +1 days 🔍
12/01/2017 +4 days 🔍
12/01/2017 +0 days 🔍
12/01/2017 +0 days 🔍
12/01/2017 +0 days 🔍
12/02/2017 +1 days 🔍
09/25/2024 +2489 days 🔍

Sourcesinfo

Vendor: zte.com.cn

Advisory: EDB-ID 43188
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-16953 (🔍)
GCVE (CVE): GCVE-0-2017-16953
GCVE (VulDB): GCVE-100-110146
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 12/02/2017 09:59
Updated: 09/25/2024 23:05
Changes: 12/02/2017 09:59 (69), 12/11/2019 19:49 (2), 09/25/2024 23:05 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.