CVE-2018-19990 — CRITICAL (9.8)

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
D-Link	Dir-822 Firmware	202krb06
Dlink	Dir-822	-

Related Weaknesses (CWE)

CWE-78

References

https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990ExploitThird Party Advisory
https://github.com/pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%2019990ExploitThird Party Advisory

FAQ

What is CVE-2018-19990?

CVE-2018-19990 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 pa...

How severe is CVE-2018-19990?

CVE-2018-19990 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-19990?

Check the references section above for vendor advisories and patch information. Affected products include: D-Link Dir-822 Firmware, Dlink Dir-822.