CVE-2019-11230

CVSS V2 Low 3.6 CVSS V3 Medium 4.4
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.
Overview
  • CVE ID
  • CVE-2019-11230
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-07-18T17:15:11
  • Last Modified Date
  • 2019-07-24T15:33:25
Weakness Enumerations
CWE URL
CWE-59 http://cwe.mitre.org/data/definitions/59.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:* 1 OR 19.4
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:P/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 3.6
  • Severity
  • LOW
  • Exploitability Score
  • 3.9
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.4
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://www.mcerlane.co.uk/CVE-2019-11230/ Exploit Third Party Advisory
http://www.securityfocus.com/bid/109344 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-11230
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11230
History
Created Old Value New Value Data Type Notes
2022-05-10 17:40:30 Added to TrackCVE
2022-12-03 23:29:06 2019-07-18T17:15Z 2019-07-18T17:15:11 CVE Published Date updated
2022-12-03 23:29:06 2019-07-24T15:33:25 CVE Modified Date updated
2022-12-03 23:29:06 Analyzed Vulnerability Status updated