CVE-2020-10867

CVSS V2 High 7.5 CVSS V3 Critical 9.8
Description
An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service (AvastSvc.exe) allows attackers to bypass intended access restrictions on tasks from an untrusted process, when Self Defense is enabled.
Overview
  • CVE ID
  • CVE-2020-10867
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-04-01T18:15:15
  • Last Modified Date
  • 2020-04-02T14:47:39
Weakness Enumerations
CWE URL
CWE-668 http://cwe.mitre.org/data/definitions/668.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:* 1 OR 20.0
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://github.com/umarfarook882/Avast_Multiple_Vulnerability_Disclosure/blob/master/README.md Exploit Third Party Advisory
https://forum.avast.com/index.php?topic=232420.0 Release Notes Vendor Advisory
https://forum.avast.com/index.php?topic=232423.0 Release Notes Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-10867
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10867
History
Created Old Value New Value Data Type Notes
2022-05-10 16:45:35 Added to TrackCVE
2022-12-04 13:46:22 2020-04-01T18:15Z 2020-04-01T18:15:15 CVE Published Date updated
2022-12-04 13:46:22 2020-04-02T14:47:39 CVE Modified Date updated
2022-12-04 13:46:22 Analyzed Vulnerability Status updated