#VU330 Authentication bypass in Huawei products - CVE-2014-9222

Vulnerability identifier: #VU330

Vulnerability risk: High

CVSSv4.0: 9.3 [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:A/U:Amber]

CVE-ID: CVE-2014-9222

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
RomPager
Server applications / Web servers
HG520c
Hardware solutions / Routers for home users
HG530
Hardware solutions / Routers for home users

Vendor: Allegro Software
Huawei

Description

The vulnerability allows a remote attacker to bypass authentication mechanisms.

The vulnerability exists due to a design error when handling cookies. A remote unauthenticated attacker can send specially crafted cookie, bypass authentication mechanisms and gain complete control over the affected device. This exploitation technique is known as "Misfortune Cookie".

Successful exploitation of this vulnerability may allow a remote attacker to gain complete control over the vulnerable device.

Mitigation
The vulnerability is fixed in version 4.34.

Vulnerable software versions

RomPager: 4.01 - 4.33

HG520c: V100R001C10B025

HG530: V100R001C10B023

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External links
https://www.allegrosoft.com/allegro-software-urges-manufacturers-to-maintain-firmware-for-highest-le...
https://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-407666.htm

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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 Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.