Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| D-Link | Dir-822 Firmware | 202krb06 |
| Dlink | Dir-822 Firmware | 3.10b06 |
| Dlink | Dir-822 | - |
Related Weaknesses (CWE)
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-2018-19989?
CVE-2018-19989 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 sourc...
How severe is CVE-2018-19989?
CVE-2018-19989 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-2018-19989?
Check the references section above for vendor advisories and patch information. Affected products include: D-Link Dir-822 Firmware, Dlink Dir-822 Firmware, Dlink Dir-822.