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Vulnerability CVE-2019-11230
Published: 2019-07-18
| Description: |
In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to write to the log file, the target of the symlink is renamed. This defect can be exploited to rename a critical product file (e.g., AvastSvc.exe), causing the product to fail to start on the next system restart. |
Type:
CWE-59 (Improper Link Resolution Before File Access ('Link Following'))
CVSS2 => (AV:L/AC:L/Au:N/C:N/I:P/A:P)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
3.6/10 |
4.9/10 |
3.9/10 |
| Exploit range |
Attack complexity |
Authentication |
Local |
Low |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
None |
Partial |
Partial |
References: |
http://www.mcerlane.co.uk/CVE-2019-11230/
http://www.securityfocus.com/bid/109344
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