ZyXEL WRE6505 Telnet Password credentials management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in ZyXEL WRE6505. This affects an unknown part of the component Telnet. This manipulation of the argument Password with the input 1234 causes credentials management. This vulnerability is tracked as CVE-2017-7964. The attack is possible to be carried out remotely. No exploit exists. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability was found in ZyXEL WRE6505 (version now known). It has been declared as very critical. Affected by this vulnerability is some unknown processing of the component Telnet. The manipulation of the argument password with the input value 1234 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:

Zyxel WRE6505 devices have a default TELNET password of 1234 for the root and admin accounts, which makes it easier for remote attackers to conduct DNS hijacking attacks by reconfiguring the built-in dnshijacker process.

The bug was discovered 04/16/2017. The weakness was disclosed 04/19/2017 (Website). It is possible to read the advisory at oxy-gen.mobi. This vulnerability is known as CVE-2017-7964 since 04/19/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/17/2020). The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

Proper firewalling of is able to address this issue.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 10.0
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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/16/2017 🔍
04/19/2017 +3 days 🔍
04/19/2017 +0 days 🔍
04/19/2017 +0 days 🔍
04/20/2017 +1 days 🔍
09/17/2020 +1246 days 🔍

Sourcesinfo

Vendor: zyxel.com

Advisory: oxy-gen.mobi
Status: Not defined

CVE: CVE-2017-7964 (🔍)
GCVE (CVE): GCVE-0-2017-7964
GCVE (VulDB): GCVE-100-100267
OSVDB: - CVE-2017-7964 - Zyxel - WRE6505 - Default Credentials Issue

Entryinfo

Created: 04/20/2017 09:47
Updated: 09/17/2020 20:14
Changes: 04/20/2017 09:47 (59), 09/17/2020 20:14 (2)
Complete: 🔍
Cache ID: 216::103

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