CVE-2018-19990

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 v3.0 NVD

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

CVSS v2.0 NVD

10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C

EPSS

5.12% chance of exploitation in the next 30 days, 92nd percentile

Published

2019-05-13

Updated

2024-08-05

Proof-of-concept exploits (1)

• pr0v3rbs/CVE/tree/master/CVE-2018-19986%20-%201999012★ · 2021-12-24

References

• CVE Record
• NVD entry

Related

• CVE-2018-19986
• CVE-2018-19987
• CVE-2018-19988
• CVE-2018-19989
• CVE-2019-20082
• CVE-2019-6258