Vulnerability Name:

CVE-2022-22922 (CCN-219977)

Assigned:2022-02-18
Published:2022-02-18
Updated:2022-02-25
Summary:TP-Link TL-WA850RE Wi-Fi Range Extender before v6_200923 was discovered to use highly predictable and easily detectable session keys, allowing attackers to gain administrative privileges.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-384
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2022-22922

Source: XF
Type: UNKNOWN
tplink-cve202222922-priv-esc(219977)

Source: CCN
Type: GitHub Web site
Use of Insufficiently Random Values (CWE-330) on TP-Link Wi-Fi Range Extender

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://github.com/emremulazimoglu/cve/blob/main/CWE330-TL-WA850RE-v6.md

Source: CCN
Type: TP-Link Web site
TL-WA850RE Wi-Fi Range Extender v6

Source: MISC
Type: Product, Vendor Advisory
https://www.tp-link.com/us/support/download/tl-wa850re/v6/#Firmware

Vulnerable Configuration:Configuration 1:
  • cpe:/o:tp-link:tl-wa850re_firmware:*:*:*:*:*:*:*:* (Version < v6_200923)
  • AND
  • cpe:/h:tp-link:tl-wa850re:6:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    tp-link tl-wa850re firmware *
    tp-link tl-wa850re 6