Medium severity · published Feb 5, 2021
CVE-2020-10234
The AscRegistryFilter.sys kernel driver in IObit Advanced SystemCare 13.2 allows an unprivileged user to send an IOCTL to the device driver
6.5
CVSS
3.3%
EPSS
No
On KEV
Description
The AscRegistryFilter.sys kernel driver in IObit Advanced SystemCare 13.2 allows an unprivileged user to send an IOCTL to the device driver. If the user provides a NULL entry for the dwIoControlCode parameter, a kernel panic (aka BSOD) follows. The IOCTL codes can be found in the dispatch function: 0x8001E000, 0x8001E004, 0x8001E008, 0x8001E00C, 0x8001E010, 0x8001E014, 0x8001E020, 0x8001E024, 0x8001E040, 0x8001E044, and 0x8001E048. \DosDevices\AscRegistryFilter and \Device\AscRegistryFilter are affected.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Advanced Systemcare · Iobit
13.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-10234
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-10234
Third Party Advisory
https://github.com/FULLSHADE/Kernel-exploits
Exploit
https://github.com/FULLSHADE/Kernel-exploits/tree/master/AscRegistryFilter.sys
Product
https://www.iobit.com/en/advancedsystemcarefree.php
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