Vulnerability Name:

CVE-2017-8219 (CCN-125422)

Assigned:2017-04-25
Published:2017-04-25
Updated:2017-05-09
Summary:TP-Link C2 and C20i devices through firmware 0.9.1 4.2 v0032.0 Build 160706 Rel.37961n allow DoSing the HTTP server via a crafted Cookie header to the /cgi/ansi URI.
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:U/RC:R)
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
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:R)
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): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-8219

Source: CCN
Type: TP-Link Web Site
TP-Link C2 and C20i

Source: XF
Type: UNKNOWN
tplink-cve20178219-dos(125422)

Source: CCN
Type: Pierre Kim Web site
TP-Link C2 and C20i vulnerable to command injection (authenticated root RCE), DoS, improper firewall rules

Source: MISC
Type: Exploit, Technical Description, Third Party Advisory
https://pierrekim.github.io/blog/2017-02-09-tplink-c2-and-c20i-vulnerable.html

Vulnerable Configuration:Configuration 1:
  • cpe:/o:tp-link:c2_firmware:*:rel.37961n:*:*:*:*:*:* (Version <= 0.9.1_4.2_v0032.0_build_160706)
  • AND
  • cpe:/h:tp-link:c2:-:*:*:*:*:*:*:*

  • Configuration 2:
  • cpe:/o:tp-link:c20i_firmware:*:rel.37961n:*:*:*:*:*:* (Version <= 0.9.1_4.2_v0032.0_build_160706)
  • AND
  • cpe:/h:tp-link:c20i:-:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    tp-link c2 firmware * rel.37961n
    tp-link c2 -
    tp-link c20i firmware * rel.37961n
    tp-link c20i -