Vulnerability identifier: #VU58147

Vulnerability risk: Medium

CVSSv3.1: 8.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2014-2321

CWE-ID: CWE-264

Exploitation vector: Local network

Exploit availability: Yes

Vulnerable software:
F460
Hardware solutions / Routers & switches, VoIP, GSM, etc
F660
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: ZTE

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in the web_shell_cmd.gch script. A remote attacker on the local network can gain elevated privileges on the target system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

F460: All versions

F660: All versions

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External links
http://www.kb.cert.org/vuls/id/600724
http://www.myxzy.com/post-411.html
http://community.rapid7.com/community/infosec/blog/2014/03/03/disclosure-r7-2013-18-zte-f460-and-zte-f660-webshellcmdgch-backdoor

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.