Multiple vulnerabilities in ZTE R5300G4, R8500G4, and R5500G4 devices



Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-6871
CVE-2020-6872
CWE-ID CWE-287
CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
 R5300G4
Hardware solutions / Other hardware appliances

R8500G4
Hardware solutions / Other hardware appliances

R5500G4
Hardware solutions / Other hardware appliances

Vendor ZTE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU31825

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-6871

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests within the server management software module. A remote attacker can bypass authentication process and execute some commands for high-level users.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

R5300G4: V03.04.0020 - V03.08.0100

R8500G4: V03.05.0020 - V03.07.0103

R5500G4: V03.06.0100 - V03.08.0100

CPE2.3 External links

https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1013203


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Stored cross-site scripting

EUVDB-ID: #VU31826

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-6872

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the server management software module. A remote attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

R5300G4: V03.04.0020 - V03.08.0100

R8500G4: V03.05.0020 - V03.07.0103

R5500G4: V03.06.0100 - V03.08.0100

CPE2.3 External links

https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1013203


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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