CVE-2019-20215 : D-Link DIR-859 1.05 and 1.06B01 Beta01 devices allow remote attackers to execute

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.

Published 2020-01-29 03:15:14

Updated 2020-02-07 18:15:11

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2019-20215

Dlink » Dir-859 Firmware » Version: 1.05
cpe:2.3:o:dlink:dir-859_firmware:1.05:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-859 » Version: N/A
Dlink » Dir-859 Firmware » Version: 1.06b01 Update Beta01
cpe:2.3:o:dlink:dir-859_firmware:1.06b01:beta01:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-859 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-20215

EPSS FAQ

94.56%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2019-20215

D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi

Disclosure Date: 2019-12-24

First seen: 2020-04-26

exploit/linux/upnp/dlink_dir859_exec_ssdpcgi

D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi. Authors: - s1kr10s - secenv

More information
D-Link Unauthenticated Remote Command Execution using UPnP via a special crafted M-SEARCH packet.

Disclosure Date: 2013-02-01

First seen: 2020-04-26

exploit/linux/upnp/dlink_upnp_msearch_exec

A command injection vulnerability exists in multiple D-Link network products, allowing an attacker to inject arbitrary command to the UPnP via a crafted M-SEARCH packet. Universal Plug and Play (UPnP), by default is enabled in most D-Link devices, on the port 1900.

More information

CVSS scores for CVE-2019-20215

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
10.0	HIGH	AV:N/AC:L/Au:N/C:C/I:C/A:C	10.0	10.0	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-20215

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-20215

https://medium.com/@s1kr10s/d-link-dir-859-unauthenticated-rce-in-ssdpcgi-http-st-cve-2019-20215-en-2e799acb8a73

D-Link DIR-859 — UnAuthenticated RCE in ssdpcgi HTTP_ST (CVE-2019–20215) [EN]
Exploit;Third Party Advisory
http://packetstormsecurity.com/files/156250/D-Link-ssdpcgi-Unauthenticated-Remote-Command-Execution.html

D-Link ssdpcgi Unauthenticated Remote Command Execution ≈ Packet Storm
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10147

D-Link Technical Support
Patch;Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2019-20215