// For flags

CVE-2018-19990

 

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the /HNAP1/SetWiFiVerifyAlpha message, the WPSPIN parameter is vulnerable, and the vulnerability affects D-Link DIR-822 B1 202KRb06 devices. In the SetWiFiVerifyAlpha.php source code, the WPSPIN parameter is saved in the $rphyinf1."/media/wps/enrollee/pin" and $rphyinf2."/media/wps/enrollee/pin" and $rphyinf3."/media/wps/enrollee/pin" internal configuration memory without any regex checking. And in the do_wps function of the wps.php source code, the data in $rphyinf3."/media/wps/enrollee/pin" is used with the wpatalk command without any regex checking. A vulnerable /HNAP1/SetWiFiVerifyAlpha XML message could have shell metacharacters in the WPSPIN element such as the `telnetd` string.

En el mensaje HNAP1/SetWiFiVerifyAlpha, el parámetro WPSPIN es vulnerable y la vulnerabilidad afecta a los dispositivos D-Link DIR-822 B1 202KRb06. En el código fuente del archivo SetWiFiVerifyAlpha.php, el parámetro WPSPIN se guarda en la memoria de configuración interna de $rphyinf1."/Media/wps/enrollee/pin" y $rphyinf2."/ Media/wps/enrollee/pin" y $rphyinf3."/Media/wps/enrollee/pin" sin ninguna comprobación regex. Y en la función do_wps del código fuente de wps.php, los datos en $rphyinf3."/ Media/wps/enrollee/pin" se usan con el comando wpatalk sin ninguna comprobación regex. Un mensaje XML vulnerable HNAP1/SetWiFiVerifyAlpha podría tener metacaracteres shell en el elemento WPSPIN como la cadena `telnetd`.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-12-09 CVE Reserved
  • 2019-05-13 CVE Published
  • 2023-04-19 EPSS Updated
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
D-link
Search vendor "D-link"
 Dir-822 Firmware
Search vendor "D-link" for product "Dir-822 Firmware"
 202krb06
Search vendor "D-link" for product "Dir-822 Firmware" and version "202krb06"
-
Affected
in Dlink
Search vendor "Dlink"
 Dir-822
Search vendor "Dlink" for product "Dir-822"
--
Safe