CWE
78
Advisory Published
Updated

CVE-2018-19990: OS Command Injection

First published: Mon May 13 2019(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
D-link Dir-822 Firmware=202krb06
Dlink Dir-822

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Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2018-19990.

  • What is the severity of CVE-2018-19990?

    The severity of CVE-2018-19990 is critical with a CVSS score of 9.8.

  • Which devices are affected by CVE-2018-19990?

    D-Link DIR-822 B1 202KRb06 devices are affected by CVE-2018-19990.

  • What is the CWE ID associated with CVE-2018-19990?

    The CWE ID associated with CVE-2018-19990 is CWE-78.

  • Is there a fix available for CVE-2018-19990?

    Please refer to the vendor's website or security advisories for information on how to fix CVE-2018-19990.

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