CVE-2019-7651
EPP.sys in Emsisoft Anti-Malware prior to version 2018.12 allows an attacker to bypass ACLs because Interpreted Device Characteristics lacks FILE_DEVICE_SECURE_OPEN and therefore files and directories "inside" the \\.\EPP device are not properly…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
EPP.sys in Emsisoft Anti-Malware prior to version 2018.12 allows an attacker to bypass ACLs because Interpreted Device Characteristics lacks FILE_DEVICE_SECURE_OPEN and therefore files and directories "inside" the \\.\EPP device are not properly protected, leading to unintended impersonation or object creation. This vulnerability has been fixed in version 2018.12 and later.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 4.89% probability · 92th percentile
- CISA KEV
- Not listed
- Affected
- emsisoft/anti-malware
- Source
- cve@mitre.org
References
- https://blog.emsisoft.com/en/32517/new-in-2018-12-safe-web-browsing-with-emsisoft-browser-security/Release Notes, Vendor Advisory
- https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-01-09-emsisoft-Anti-Malware-bypass.mdExploit, Third Party Advisory
- https://help.emsisoft.com/en/1760/vulnerability-report-en/Vendor Advisory
- https://nafiez.github.io/security/bypass/2019/01/08/emsisoft-Anti-Malware-bypass.htmlExploit, Third Party Advisory
- https://blog.emsisoft.com/en/32517/new-in-2018-12-safe-web-browsing-with-emsisoft-browser-security/Release Notes, Vendor Advisory
- https://github.com/nafiez/nafiez.github.io/blob/master/_posts/2019-01-09-emsisoft-Anti-Malware-bypass.mdExploit, Third Party Advisory
- https://help.emsisoft.com/en/1760/vulnerability-report-en/Vendor Advisory
- https://nafiez.github.io/security/bypass/2019/01/08/emsisoft-Anti-Malware-bypass.htmlExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.