Vulnerability Name:

CVE-2021-27209 (CCN-196812)

Assigned:2021-02-03
Published:2021-02-03
Updated:2021-02-19
Summary:In the management interface on TP-Link Archer C5v 1.7_181221 devices, credentials are sent in a base64 format over cleartext HTTP.
CVSS v3 Severity:7.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N)
6.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/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): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:3.6 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-319
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-27209

Source: XF
Type: UNKNOWN
archerc5v-cve202127209-info-disc(196812)

Source: CCN
Type: GoKay Web site
TP-Link Archer C5v Base64 Cookie

Source: MISC
Type: Exploit, Third Party Advisory
https://gokay.org/tp-link-archer-c5v-base64-cookie/

Source: CCN
Type: TP-Link Web site
AC1200 Wireless Dual Band Gigabit VoIP Router

Vulnerable Configuration:Configuration 1:
  • cpe:/o:tp-link:archer_c5v_firmware:1.7_181221:*:*:*:*:*:*:*
  • AND
  • cpe:/h:tp-link:archer_c5v:1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    tp-link archer c5v firmware 1.7_181221
    tp-link archer c5v 1.0