CVE-2019-20215
D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via a urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because HTTP_ST is mishandled.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 75.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute arbitrary OS commands via a urn: to the M-SEARCH method in ssdpcgi() in /htdocs/cgibin, because HTTP_ST is mishandled. The value of the urn: service/device is checked with the strstr function, which allows an attacker to concatenate arbitrary commands separated by shell metacharacters.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 75.11% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- dlink/dir-859 firmware
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/156250/D-Link-ssdpcgi-Unauthenticated-Remote-Command-Execution.html
- https://medium.com/%40s1kr10s/d-link-dir-859-unauthenticated-rce-in-ssdpcgi-http-st-cve-2019-20215-en-2e799acb8a73
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147Patch, Vendor Advisory
- http://packetstormsecurity.com/files/156250/D-Link-ssdpcgi-Unauthenticated-Remote-Command-Execution.html
- https://medium.com/%40s1kr10s/d-link-dir-859-unauthenticated-rce-in-ssdpcgi-http-st-cve-2019-20215-en-2e799acb8a73
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.