Vulnerability Name:

CVE-2020-28005 (CCN-192073)

Assigned:2020-11-18
Published:2020-11-18
Updated:2020-12-01
Summary:httpd on TP-Link TL-WPA4220 devices (hardware versions 2 through 4) allows remote authenticated users to trigger a buffer overflow (causing a denial of service) by sending a POST request to the /admin/syslog endpoint. Fixed version: TL-WPA4220(EU)_V4_201023
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:3.5 Low (CVSS v2 Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-120
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-28005

Source: XF
Type: UNKNOWN
tplink-cve202028005-dos(192073)

Source: CCN
Type: the hyperbolic Blog, 2020-11-18
Vulnerabilities in TP-Link's TL-WPA4220

Source: MISC
Type: Exploit, Third Party Advisory
https://the-hyperbolic.com/posts/vulnerabilities-in-tlwpa4220/

Source: CCN
Type: TP-Link Web site
TP-Link TL-WPA4220 devices

Source: MISC
Type: Vendor Advisory
https://www.tp-link.com/us/security

Vulnerable Configuration:Configuration 1:
  • cpe:/o:tp-link:tl-wpa4220_firmware:*:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:tl-wpa4220:v2:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:tp-link:tl-wpa4220_firmware:*:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:tl-wpa4220:v3:*:*:*:*:*:*:*

  • Configuration 3:
  • cpe:/o:tp-link:tl-wpa4220_firmware:*:*:*:*:*:*:*:* (Version < tl-wpa4220(eu)_v4_201023)
  • AND
  • cpe:/h:tp-link:tl-wpa4220:v4:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    tp-link tl-wpa4220 firmware *
    tp-link tl-wpa4220 v2
    tp-link tl-wpa4220 firmware *
    tp-link tl-wpa4220 v3
    tp-link tl-wpa4220 firmware *
    tp-link tl-wpa4220 v4