CVE-2020-27301

CVSS V2 High 7.7 CVSS V3 High 8
Description
A stack buffer overflow in Realtek RTL8710 (and other Ameba-based devices) can lead to remote code execution via the "AES_UnWRAP" function, when an attacker in Wi-Fi range sends a crafted "Encrypted GTK" value as part of the WPA2 4-way-handshake.
Overview
  • CVE ID
  • CVE-2020-27301
  • Assigner
  • vuln@vdoo.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-04T13:15:07
  • Last Modified Date
  • 2021-06-14T18:07:06
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:realtek:rtl8710c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:realtek:rtl8710c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:realtek:rtl8195a_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:realtek:rtl8195a:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:S/C:C/I:C/A:C
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.7
  • Severity
  • HIGH
  • Exploitability Score
  • 5.1
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.1
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.vdoo.com/blog/realtek-wifi-vulnerabilities-zero-day Exploit Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-27301
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27301
History
Created Old Value New Value Data Type Notes
2022-05-10 07:11:47 Added to TrackCVE
2022-12-05 03:33:20 2021-06-04T13:15Z 2021-06-04T13:15:07 CVE Published Date updated
2022-12-05 03:33:20 2021-06-14T18:07:06 CVE Modified Date updated
2022-12-05 03:33:20 Analyzed Vulnerability Status updated