Vulnerability · Published Apr 6, 2021 · Assigned by twcert
CVE-2021-28196ASUS BMC's firmware: buffer overflow - Generate SSL certificate function
Medium 4.9
In plain English
A medium-severity buffer overflow in BMC firmware for ASMB9-iKVM from ASUS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities).
Severity (CVSS 3.1)4.9Medium
Exploit odds (30 days)1.1%top 33.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The specific function in ASUS BMC’s firmware Web management page (Generate SSL certificate function) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.
Affected products (as reported)
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
References
- https://www.asus.com/content/ASUS-Product-Security-Advisory/ x_refsource_MISC
- https://www.asus.com/tw/support/callus/ x_refsource_MISC
- https://www.twcert.org.tw/tw/cp-132-4566-9154b-1.html x_refsource_MISC