Vulnerability identifier: #VU23626

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5255

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Huawei AP2000
Hardware solutions / Routers & switches, VoIP, GSM, etc
Huawei IPS Module
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei NIP6300
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei NIP6600
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei NIP6800
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei Secospace AntiDDoS8000
Server applications / IDS/IPS systems, Firewalls and proxy servers
Huawei NGFW Module
Server applications / Other server solutions
Huawei SVN5600
Server applications / Other server solutions
Huawei SVN5800
Server applications / Other server solutions
Huawei SVN5800-C
Server applications / Other server solutions
Huawei S5700
Hardware solutions / Routers for home users
Huawei SeMG9811
Other software / Other software solutions
Huawei Secospace USG6300
Server applications / Server solutions for antivurus protection
Huawei Secospace USG6500
Server applications / Server solutions for antivurus protection
Huawei Secospace USG6600
Server applications / Server solutions for antivurus protection
Huawei USG6000V
Server applications / Remote management servers, RDP, SSH
Huawei eSpace U1981
Server applications / Remote management servers, RDP, SSH

Vendor: Huawei

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of the message. A remote attacker can send specially crafted messages from a FTP client, trigger out-of-bounds read error and cause a denial of service condition on the target device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Huawei AP2000: V200R005C30 - V200R009C00

Huawei IPS Module: V500R001C00SPC300 - V500R005C00

Huawei NGFW Module: V500R001C00SPC300 - V500R005C00

Huawei NIP6300: V500R001C00SPC300 - V500R005C00

Huawei NIP6600: V500R001C00SPC300 - V500R005C00

Huawei NIP6800: V500R001C50 - V500R005C00

Huawei S5700: V200R005C03

Huawei SVN5600: V200R003C00SPC100

Huawei SVN5800: V200R003C00SPC100

Huawei SVN5800-C: V200R003C00SPC100

Huawei SeMG9811: V500R002C20 - V500R005C00

Huawei Secospace AntiDDoS8000: V500R001C00 - V500R005C00SPC100

Huawei Secospace USG6300: V100R001C20SPC100 - V500R005C00

Huawei Secospace USG6500: V100R001C20SPC100 - V500R005C00

Huawei Secospace USG6600: V100R001C00SPC200 - V500R005C00SPC102

Huawei USG6000V: V500R001C10 - V500R005C00SPC100

Huawei eSpace U1981: V200R003C50SPC700

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External links
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20191211-01-ssp-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.