ZTE ZXHN H108N R1A prior ZTE.bhs.ZXHNH108NR1A.k_PE Telnet Service credentials management

CVSS Meta Temp Score
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CTI Interest Score
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9.3$0-$5k0.00

Summaryinfo

A vulnerability was found in ZTE ZXHN H108N R1A. It has been rated as critical. Impacted is an unknown function of the component Telnet Service. This manipulation causes credentials management. This vulnerability is registered as CVE-2015-7251. Furthermore, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in ZTE ZXHN H108N R1A. Affected by this vulnerability is an unknown function of the component Telnet Service. The manipulation with an unknown input leads to a credentials management vulnerability. The CWE definition for the vulnerability is CWE-255. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

ZTE ZXHN H108N R1A devices before ZTE.bhs.ZXHNH108NR1A.k_PE have a hardcoded password of root for the root account, which allows remote attackers to obtain administrative access via a TELNET session.

The weakness was published 12/30/2015 by Karn Ganeshen (Website). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2015-7251 since 09/18/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

A public exploit has been developed by Karn Ganeshen and been published even before and not after the advisory. 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 40 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version ZTE.bhs.ZXHNH108NR1A.k_PE eliminates this vulnerability.Proper firewalling of tcp/23 (telnet) is able to address this issue. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Exploit-DB (38773) and SecurityFocus (BID 77421†). Similar entries are available at VDB-79972, VDB-79973, VDB-79974 and VDB-79976. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Credentials management
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Karn Ganeshen
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 800920
OpenVAS Name: Multiple ADSL Routers Directory Traversal Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ZXHN H108N R1A ZTE.bhs.ZXHNH108NR1A.k_PE
Firewalling: 🔍

Timelineinfo

09/18/2015 🔍
11/04/2015 +47 days 🔍
11/20/2015 +16 days 🔍
11/20/2015 +0 days 🔍
12/30/2015 +40 days 🔍
12/30/2015 +0 days 🔍
01/02/2016 +3 days 🔍
12/07/2024 +3262 days 🔍

Sourcesinfo

Vendor: zte.com.cn

Advisory: kb.cert.org
Researcher: Karn Ganeshen
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-7251 (🔍)
GCVE (CVE): GCVE-0-2015-7251
GCVE (VulDB): GCVE-100-79975
CERT: 🔍
SecurityFocus: 77421 - ZTE ZXHN H108N R1A Routers Multiple Security Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 01/02/2016 17:41
Updated: 12/07/2024 17:34
Changes: 01/02/2016 17:41 (60), 05/25/2018 10:19 (17), 08/26/2024 20:32 (17), 12/07/2024 17:34 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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