VulnerabilityModified
CVE-2021-37909
WriteRegistry function in TSSServiSign component does not filter and verify users’ input, remote attackers can rewrite to the registry without permissions thus perform hijack attacks to execute arbitrary code.
CRITICAL 9.8EPSS 2.01%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
WriteRegistry function in TSSServiSign component does not filter and verify users’ input, remote attackers can rewrite to the registry without permissions thus perform hijack attacks to execute arbitrary code.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.01% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- tssservisignadapter project/tssservisignadapter
- Source
- twcert@cert.org.tw
References
- https://www.twcert.org.tw/tw/cp-132-5093-76f04-1.htmlThird Party Advisory
- https://www.twcert.org.tw/tw/cp-132-5093-76f04-1.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.