#VU26030 Out-of-bounds read in Huawei USG6000V - CVE-2020-1863

Vulnerability identifier: #VU26030

Vulnerability risk: Medium

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

CVE-ID: CVE-2020-1863

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Huawei USG6000V
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 a boundary condition in a JSON parsing routine. A remote attacker can trigger out-of-bounds read error and disrupt service in the affected products.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Huawei USG6000V: V500R001C20SPC300 - V500R005C00SPC100

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External links
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200311-01-buffer-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.