Vulnerability Details CVE-2018-19989
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.37
EPSS Ranking 96.9%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 10.0
References
Products affected by CVE-2018-19989
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cpe:2.3:h:dlink:dir-822:-
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cpe:2.3:o:d-link:dir-822_firmware:202krb06
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cpe:2.3:o:dlink:dir-822_firmware:3.10b06