VulnerabilityModified

CVE-2021-37127

There is a signature management vulnerability in some huawei products.

HIGH 7.2EPSS 0.72%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

There is a signature management vulnerability in some huawei products. An attacker can forge signature and bypass the signature check. During firmware update process, successful exploit this vulnerability can cause the forged system file overwrite the correct system file. Affected product versions include:iManager NetEco V600R010C00CP2001,V600R010C00CP2002,V600R010C00SPC100,V600R010C00SPC110,V600R010C00SPC120,V600R010C00SPC200,V600R010C00SPC210,V600R010C00SPC300;iManager NetEco 6000 V600R009C00SPC100,V600R009C00SPC110,V600R009C00SPC120,V600R009C00SPC190,V600R009C00SPC200,V600R009C00SPC201,V600R009C00SPC202,V600R009C00SPC210.

CVSS 3.1: 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.72% probability · 52th percentile
CISA KEV: Not listed
Weakness: CWE-347
Affected: huawei/imanager neteco 6000 firmware · huawei/imanager neteco firmware
Source: psirt@huawei.com

References

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20211020-01-signature-enVendor Advisory
https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20211020-01-signature-enVendor Advisory

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