CVE-2018-19989

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the /HNAP1/SetQoSSettings message, the uplink parameter is vulnerable, and the vulnerability affects D-Link DIR-822 Rev.B 202KRb06 and DIR-822 Rev.C 3.10B06 devices. In the SetQoSSettings.php source code, the uplink parameter is saved in the /bwc/entry:1/bandwidth and /bwc/entry:2/bandwidth internal configuration memory without any regex checking. And in the bwc_tc_spq_start, bwc_tc_wfq_start, and bwc_tc_adb_start functions of the bwcsvcs.php source code, the data in /bwc/entry:1/bandwidth and /bwc/entry:2/bandwidth is used with the tc command without any regex checking. A vulnerable /HNAP1/SetQoSSettings XML message could have shell metacharacters in the uplink element such as the `telnetd` string.

En el mensaje HNAP1/SetQoSSettings, el parámetro uplink es vulnerable y la vulnerabilidad afecta a los dispositivos D-Link DIR-822 Rev.B 202KRb06 y DIR-822 Rev.C 3.10B06. En el código fuente del archivo SetQoSSettings.php, el parámetro uplink se guarda en la memoria de configuración interna del /bwc/entry:1/bandwitch y /bwc/entry:2/bandwitch sin ninguna comprobación regex. Y en las funciones bwc_tc_spq_start, bwc_tc_wfq_start y bwc_tc_adb_start del código fuente de bwcsvcs.php, los datos en /bwc/entry:1/bandwidth y /bwc/entry:2/bandwidth se usan para el comando tc. Un mensaje XML vulnerable /HNAP1/ SetQoSSettings podría tener metacaracteres shell en el elemento uplink, como la cadena `telnetd`.

*Credits: N/A

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
2023-04-27 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

References (1)

URL	Tag	Source

URL	Date	SRC
https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990	2024-08-05

URL	Date	SRC

URL	Date	SRC

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
Dlink Search vendor "Dlink"	Dir-822 Firmware Search vendor "Dlink" for product "Dir-822 Firmware"	3.10b06 Search vendor "Dlink" for product "Dir-822 Firmware" and version "3.10b06"	-	Affected	in	Dlink Search vendor "Dlink"	Dir-822 Search vendor "Dlink" for product "Dir-822"	-	-	Safe