What is CVE-2020-12775?

CVE-2020-12775 is a critical-severity vulnerability in Hicos Citizen Certificate Client-Side Component, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-01.

How severe is CVE-2020-12775?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Hicos Citizen Certificate Client-Side Component

CVE-2020-12775

Hicos citizen certificate client-side component does not filter special characters for command parameters in specific web URLs. An unauthenticated remote attacker can exploit this vulnerability to perform command injection attack to execute arbitrary system command, disrupt system or terminate service.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.028 (85.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Hicos Citizen Certificate Client-side Component — versions unspecified
Moica Hicos

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

twcert@cert.org.tw (Third Party Advisory, x_refsource_MISC)
twcert@cert.org.tw (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2020-12775?: CVE-2020-12775 is a critical-severity vulnerability in Hicos Citizen Certificate Client-Side Component, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-01.
How severe is CVE-2020-12775?: Critical severity. CVSS v3 base score is 9.8 out of 10.