#VU23420 Use of a broken or risky cryptographic algorithm in Huawei products - CVE-2019-19397

Vulnerability identifier: #VU23420

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-19397

CWE-ID: CWE-327

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Huawei S12700
Hardware solutions / Routers for home users
Huawei S5700
Hardware solutions / Routers for home users
Huawei S1700
Hardware solutions / Routers & switches, VoIP, GSM, etc
Huawei S2700
Hardware solutions / Routers & switches, VoIP, GSM, etc
Huawei S6700
Hardware solutions / Routers & switches, VoIP, GSM, etc
Huawei S7700
Hardware solutions / Routers & switches, VoIP, GSM, etc
Huawei S9700
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Huawei

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the target system.

The vulnerability exists due to the affected products use weak algorithms by default. A remote attacker can exploit this vulnerability to cause information leaks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Huawei S12700: V200R007C00 - V200R012C00

Huawei S1700: V200R006C10 - V200R012C20

Huawei S2700: V200R006C00 - V200R012C00

Huawei S5700: V200R005C00 - V200R012C20

Huawei S6700: V200R005C00 - V200R012C00

Huawei S7700: V200R006C00 - V200R012C00

Huawei S9700: V200R006C00 - V200R012C00

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External links
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191204-01-vrp-en

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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.