VulnerabilityModified

CVE-2021-22309

There is insecure algorithm vulnerability in Huawei products.

HIGH 7.5EPSS 0.77%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

There is insecure algorithm vulnerability in Huawei products. A module uses less random input in a secure mechanism. Attackers can exploit this vulnerability by brute forcing to obtain sensitive message. This can lead to information leak. Affected product versions include:USG9500 versions V500R001C30SPC200, V500R001C60SPC500,V500R005C00SPC200;USG9520 versions V500R005C00;USG9560 versions V500R005C00;USG9580 versions V500R005C00.

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.77% probability · 53th percentile
CISA KEV: Not listed
Weakness: CWE-330
Affected: huawei/usg9500 firmware · huawei/usg9520 firmware · huawei/usg9560 firmware · huawei/usg9580 firmware
Source: psirt@huawei.com

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210202-01-fw-enVendor Advisory
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210202-01-fw-enVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.