CVE-2017-8413
"D-Link DCS-1100/DCS-1130 Unauthenticated Remote Command Execution via Custom UDP Protocol"
Description
An issue was discovered on D-Link DCS-1100 and DCS-1130 devices. The device runs a custom daemon on UDP port 5978 which is called "dldps2121" and listens for broadcast packets sent on 255.255.255.255. This daemon handles custom D-Link UDP based protocol that allows D-Link mobile applications and desktop applications to discover D-Link devices on the local network. The binary processes the received UDP packets sent from any device in "main" function. One path in the function traverses towards a block of code that handles commands to be executed on the device. The custom protocol created by D-Link follows the following pattern: Packetlen, Type of packet; M=MAC address of device or broadcast; D=Device Type;C=base64 encoded command string;test=1111. If a packet is received with the packet type being "S" or 0x53 then the string passed in the "C" parameter is base64 decoded and then executed by passing into a System API. We can see at address 0x00009B44 that the string received in packet type subtracts 0x31 or "1" from the packet type and is compared against 0x22 or "double quotes". If that is the case, then the packet is sent towards the block of code that executes a command. Then the value stored in "C" parameter is extracted at address 0x0000A1B0. Finally, the string received is base 64 decoded and passed on to the system API at address 0x0000A2A8 as shown below. The same form of communication can be initiated by any process including an attacker process on the mobile phone or the desktop and this allows a third-party application on the device to execute commands on the device without any authentication by sending just 1 UDP packet with custom base64 encoding.
INFO
Published Date :
July 2, 2019, 9:15 p.m.
Last Modified :
April 23, 2021, 4:47 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2017-8413 has a 1 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2017-8413
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-8413
.
URL | Resource |
---|---|
http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html | Third Party Advisory VDB Entry |
https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf | Not Applicable Third Party Advisory |
https://seclists.org/bugtraq/2019/Jun/8 | Mailing List Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
This repo contains alls the vulnerabilities identified as a part of security research against IoT devices
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-8413
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-8413
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Apr. 23, 2021
Action Type Old Value New Value Removed CVSS V3 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
Initial Analysis by [email protected]
Jul. 10, 2019
Action Type Old Value New Value Added CVSS V2 (AV:A/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html No Types Assigned http://packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stack-Overflow.html Third Party Advisory, VDB Entry Changed Reference Type https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf No Types Assigned https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.pdf Not Applicable, Third Party Advisory Changed Reference Type https://seclists.org/bugtraq/2019/Jun/8 No Types Assigned https://seclists.org/bugtraq/2019/Jun/8 Mailing List, Third Party Advisory Added CWE CWE-77 Added CPE Configuration AND OR *cpe:2.3:o:dlink:dcs-1130_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dcs-1130:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:dlink:dcs-1100_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:dlink:dcs-1100:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-8413
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-8413
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.02%
score
0.44612
percentile