Vulnerability Name:

CVE-2021-29280 (CCN-208065)

Assigned:2021-08-13
Published:2021-08-13
Updated:2021-08-26
Summary:In TP-Link Wireless N Router WR840N an ARP poisoning attack can cause buffer overflow
CVSS v3 Severity:6.4 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H)
5.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H/E:P/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): High
5.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:A/AC:M/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
4.8 Medium (CCN CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-668
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-29280

Source: XF
Type: UNKNOWN
tplink-cve202129280-bo(208065)

Source: CCN
Type: GitHub Web site
upgraded-ARP-Poisoning

Source: MISC
Type: Exploit, Third Party Advisory
https://github.com/deadlysnowman3308/upgraded-ARP-Poisoning

Source: MISC
Type: Third Party Advisory
https://hackingvila.wordpress.com/2021/04/28/upgraded-arp-poisoning-tool/

Source: CCN
Type: TP-Link Web site
TP-Link WR840N

Vulnerable Configuration:Configuration 1:
  • cpe:/o:tp-link:tl-wr840n_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:tl-wr840n:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/h:tp-link:wr840n:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    tp-link tl-wr840n firmware -
    tp-link tl-wr840n -
    tp-link wr840n -