CVE-2019-18989

CVSS V2 Medium 4.8 CVSS V3 Medium 5.4
Description
A partial authentication bypass vulnerability exists on Mediatek MT7620N 1.06 devices. The vulnerability allows sending an unencrypted data frame to a WPA2-protected WLAN router where the packet is routed through the network. If successful, a response is sent back as an encrypted frame, which would allow an attacker to discern information or potentially modify data.
Overview
  • CVE ID
  • CVE-2019-18989
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-09-30T18:15:17
  • Last Modified Date
  • 2021-07-21T11:39:23
Weakness Enumerations
CWE URL
CWE-290 http://cwe.mitre.org/data/definitions/290.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:mediatek:mt7620n_firmware:1.06:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:mediatek:mt7620n:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:P/I:P/A:N
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 4.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 6.5
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 5.4
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 2.5
References
Reference URL Reference Tags
https://www.synopsys.com/blogs/software-security/cyrc-advisory-sept2020/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-18989
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18989
History
Created Old Value New Value Data Type Notes
2022-05-10 16:09:51 Added to TrackCVE
2022-12-04 23:30:14 2020-09-30T18:15Z 2020-09-30T18:15:17 CVE Published Date updated
2022-12-04 23:30:14 2021-07-21T11:39:23 CVE Modified Date updated
2022-12-04 23:30:14 Analyzed Vulnerability Status updated