D-Link DAP-1320 A2-V1.21 routers have some web interfaces without authentication requirements, as demonstrated by uplink_info.xml. An attacker can remotely obtain a user's Wi-Fi SSID and password, which could be used to connect to Wi-Fi or perform a dictionary attack.

There are some web interfaces without authentication requirements on D-Link DIR-412 A1-1.14WW routers. An attacker can get the router's log file via log_get.php, which could be used to discover the intranet network structure.

D-Link D-View Use of Hard-coded Cryptographic Key Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of D-Link D-View. Authentication is not required to exploit this vulnerability. The specific flaw exists within the TokenUtils class. The issue results from a hard-coded cryptographic key. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-19659.

D-Link D-View TftpReceiveFileHandler Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of D-Link D-View. Authentication is not required to exploit this vulnerability. The specific flaw exists within the TftpReceiveFileHandler class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-19497.

An issue was discovered in the D-Link Central WiFi Manager CWM(100) before v1.03R0100_BETA6. Input does not get validated and arbitrary SQL statements can be executed in the database via the /web/Public/Conn.php parameter dbSQL.

A SQL Injection was discovered in D-Link Central WiFi Manager CWM(100) before v1.03R0100_BETA6 in PayAction.class.php with the index.php/Pay/passcodeAuth parameter passcode. The vulnerability does not need any authentication.

D-Link DIR-655 C devices before 3.02B05 BETA03 allow remote attackers to execute arbitrary commands via shell metacharacters in the online_firmware_check.cgi check_fw_url parameter.

Directory traversal vulnerability in the TFTP server in D-Link DIR-601 Wireless N150 Home Router with firmware 1.02NA allows remote attackers to read arbitrary files via unspecified vectors.

A vulnerability, which was classified as problematic, was found in D-Link DNS-320 2.02b01. This affects an unknown part of the file /cgi-bin/discovery.cgi of the component Web Management Interface. The manipulation leads to information disclosure. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. Vendor was contacted early and confirmed that the product is end-of-life. It should be retired and replaced.

An issue was discovered in D-Link DIR-806 devices. There is a stack-based buffer overflow in function hnap_main at /htdocs/cgibin. The function will call sprintf without checking the length of strings in parameters given by HTTP header and can be controlled by users. And it finally leads to a stack-based buffer overflow via a special HTTP header.

D-Link D-View Use of Hard-coded Cryptographic Key Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of D-Link D-View. Authentication is not required to exploit this vulnerability. The specific flaw exists within the TokenUtils class. The issue results from a hard-coded cryptographic key. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-21991.

The D-Link DIR-816 A2 1.11 router only checks the random token when authorizing a goform request. An attacker can get this token from dir_login.asp and use an API URL /goform/form2userconfig.cgi to edit the system account without authentication.

The D-Link DIR-816 A2 1.11 router only checks the random token when authorizing a goform request. An attacker can get this token from dir_login.asp and use an API URL /goform/setSysAdm to edit the web or system account without authentication.

A flaw in the authentication mechanism in the Login Panel of router D-Link DSL-3782 (A1_WI_20170303 || SWVer="V100R001B012" FWVer="3.10.0.24" FirmVer="TT_77616E6771696F6E67") allows unauthenticated attackers to perform arbitrary modification (read, write) to passwords and configurations meanwhile an administrator is logged into the web panel.

In the web server on D-Link DIR-620 devices with a certain customized (by ISP) variant of firmware 1.0.3, 1.0.37, 1.3.1, 1.3.3, 1.3.7, 1.4.0, and 2.0.22, there is a hardcoded password of anonymous for the admin account.

D-Link DIR-822 Rev.B 202KRb06, DIR-822 Rev.C 3.10B06, DIR-860L Rev.B 2.03.B03, DIR-868L Rev.B 2.05B02, DIR-880L Rev.A 1.20B01_01_i3se_BETA, and DIR-890L Rev.A 1.21B02_BETA devices mishandle IsAccessPoint in /HNAP1/SetAccessPointMode. In the SetAccessPointMode.php source code, the IsAccessPoint parameter is saved in the ShellPath script file without any regex checking. After the script file is executed, the command injection occurs. A vulnerable /HNAP1/SetAccessPointMode XML message could have shell metacharacters in the IsAccessPoint element such as the `telnetd` string.

On D-Link DAP-1530 (A1) before firmware version 1.06b01, DAP-1610 (A1) before firmware version 1.06b01, DWR-111 (A1) before firmware version 1.02v02, DWR-116 (A1) before firmware version 1.06b03, DWR-512 (B1) before firmware version 2.02b01, DWR-711 (A1) through firmware version 1.11, DWR-712 (B1) before firmware version 2.04b01, DWR-921 (A1) before firmware version 1.02b01, and DWR-921 (B1) before firmware version 2.03b01, there exists an EXCU_SHELL file in the web directory. By sending a GET request with specially crafted headers to the /EXCU_SHELL URI, an attacker could execute arbitrary shell commands in the root context on the affected device. Other devices might be affected as well.

In the /HNAP1/SetClientInfoDemo message, the AudioMute and AudioEnable parameters are vulnerable, and the vulnerabilities affect D-Link DIR-868L Rev.B 2.05B02 devices. In the SetClientInfoDemo.php source code, the AudioMute and AudioEnble parameters are saved in the ShellPath script file without any regex checking. After the script file is executed, the command injection occurs. It needs to bypass the wget command option with a single quote. A vulnerable /HNAP1/SetClientInfoDemo XML message could have single quotes and backquotes in the AudioMute or AudioEnable element, such as the '`telnetd`' string.

An issue was discovered in /bin/boa on D-Link DIR-619L Rev.B 2.06B1 and DIR-605L Rev.B 2.12B1 devices. There is a stack-based buffer overflow allowing remote attackers to execute arbitrary code without authentication via the goform/formLanguageChange currTime parameter.

In the /HNAP1/SetWiFiVerifyAlpha message, the WPSPIN parameter is vulnerable, and the vulnerability affects D-Link DIR-822 B1 202KRb06 devices. In the SetWiFiVerifyAlpha.php source code, the WPSPIN parameter is saved in the $rphyinf1."/media/wps/enrollee/pin" and $rphyinf2."/media/wps/enrollee/pin" and $rphyinf3."/media/wps/enrollee/pin" internal configuration memory without any regex checking. And in the do_wps function of the wps.php source code, the data in $rphyinf3."/media/wps/enrollee/pin" is used with the wpatalk command without any regex checking. A vulnerable /HNAP1/SetWiFiVerifyAlpha XML message could have shell metacharacters in the WPSPIN element such as the `telnetd` string.

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.

D-Link DCS series Wi-Fi cameras expose sensitive information regarding the device configuration. The affected devices include many of DCS series, such as: DCS-936L, DCS-942L, DCS-8000LH, DCS-942LB1, DCS-5222L, DCS-825L, DCS-2630L, DCS-820L, DCS-855L, DCS-2121, DCS-5222LB1, DCS-5020L, and many more. There are many affected firmware versions starting from 1.00 and above. The configuration file can be accessed remotely through: <Camera-IP>/common/info.cgi, with no authentication. The configuration file include the following fields: model, product, brand, version, build, hw_version, nipca version, device name, location, MAC address, IP address, gateway IP address, wireless status, input/output settings, speaker, and sensor settings.

atbox.htm on D-Link DSL-2770L devices allows remote unauthenticated attackers to discover admin credentials.

dirary0.js on D-Link DIR-140L, DIR-640L devices allows remote unauthenticated attackers to discover admin credentials.

spaces.htm on multiple D-Link devices (DSL, DIR, DWR) allows remote unauthenticated attackers to discover admin credentials.

On D-Link DIR-823G 2018-09-19 devices, the GoAhead configuration allows /HNAP1 SetPasswdSettings commands without authentication to trigger an admin password change.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction within the handler function of the /goform/sylogapply route. This could lead to command injection via the syslogIp parameter after /goform/clearlog is invoked.

On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the "system" library function.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction in the handler function of the /goform/Diagnosis route. This could lead to command injection via shell metacharacters in the sendNum parameter.

On D-Link DIR-823G devices, ExportSettings.sh, upload_settings.cgi, GetDownLoadSyslog.sh, and upload_firmware.cgi do not require authentication, which allows remote attackers to execute arbitrary code.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. An HTTP request parameter is used in command string construction within the handler function of the /goform/NTPSyncWithHost route. This could lead to command injection via shell metacharacters.

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/DDNS route, a very long password could lead to a stack-based buffer overflow and overwrite the return address.

An issue was discovered on D-Link DIR-809 A1 through 1.09, A2 through 1.11, and Guest Zone through 1.09 devices. One can bypass authentication mechanisms to download the configuration file.

Stack-based buffer overflow in the websRedirect function in GoAhead on D-Link DIR-816 A2 (CN) routers with firmware version 1.10B05 allows unauthenticated remote attackers to execute arbitrary code via a request with a long HTTP Host header.

Directory traversal vulnerability in the web interface on D-Link DWR-116 through 1.06, DIR-140L through 1.02, DIR-640L through 1.02, DWR-512 through 2.02, DWR-712 through 2.02, DWR-912 through 2.02, DWR-921 through 2.02, and DWR-111 through 1.01 devices allows remote attackers to read arbitrary files via a /.. or // after "GET /uir" in an HTTP request. NOTE: this vulnerability exists because of an incorrect fix for CVE-2017-6190.

On D-Link DIR-550A and DIR-604M devices through v2.10KR, a malicious user can use a default TELNET account to get unauthorized access to vulnerable devices, aka a backdoor access vulnerability.

An information disclosure in web interface in D-Link DIR-X1860 before 1.03 RevA1 allows a remote unauthenticated attacker to send a specially crafted HTTP request and gain knowledge of different absolute paths that are being used by the web application.

Local File Inclusion due to path traversal in D-Link DAP-1620 leads to unauthorized internal files reading [/etc/passwd] and [/etc/shadow].

The weblogin_log function in /htdocs/cgibin on D-Link DIR-629-B1 devices allows attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a session.cgi?ACTION=logout request involving a long REMOTE_ADDR environment variable.

D-Link DIR-815 REV. B (with firmware through DIR-815_REVB_FIRMWARE_PATCH_2.07.B01) devices have permission bypass and information disclosure in /htdocs/web/getcfg.php, as demonstrated by a /getcfg.php?a=%0a_POST_SERVICES%3DDEVICE.ACCOUNT%0aAUTHORIZED_GROUP%3D1 request.

D-Link DIR-615 Wireless N 300 Router allows authentication bypass via a modified POST request to login.cgi. This issue occurs because it fails to validate the password field. Successful exploitation of this issue allows an attacker to take control of the affected device.

An issue was discovered on D-Link DCS-1130 and DCS-1100 devices. The binary rtspd in /sbin folder of the device handles all the rtsp connections received by the device. It seems that the binary loads at address 0x00012CF4 a flag called "Authenticate" that indicates whether a user should be authenticated or not before allowing access to the video feed. By default, the value for this flag is zero and can be set/unset using the HTTP interface and network settings tab as shown below. The device requires that a user logging to the HTTP management interface of the device to provide a valid username and password. However, the device does not enforce the same restriction by default on RTSP URL due to the checkbox unchecked by default, thereby allowing any attacker in possession of external IP address of the camera to view the live video feed. The severity of this attack is enlarged by the fact that there more than 100,000 D-Link devices out there.

An informtion disclosure issue exists in D-LINK-DIR-605 B2 Firmware Version : 2.01MT. An attacker can obtain a user name and password by forging a post request to the / getcfg.php page

An issue was discovered on D-Link DCS-1130 devices. The device provides a user with the capability of setting a SMB folder for the video clippings recorded by the device. It seems that the GET parameters passed in this request (to test if SMB credentials and hostname sent to the device work properly) result in being passed as commands to a "system" API in the function and thus result in command injection on the device. If the firmware version is dissected using binwalk tool, we obtain a cramfs-root archive which contains the filesystem set up on the device that contains all the binaries. The binary "cgibox" is the one that has the vulnerable function "sub_7EAFC" that receives the values sent by the GET request. If we open this binary in IDA-pro we will notice that this follows a ARM little endian format. The function sub_7EAFC in IDA pro is identified to be receiving the values sent in the GET request and the value set in GET parameter "user" is extracted in function sub_7E49C which is then passed to the vulnerable system API call.

D-Link DVG-3104MS version 1.0.2.0.3, 1.0.2.0.4, and 1.0.2.0.4E contains hard-coded credentials for undocumented user accounts in the '/etc/passwd' file. As weak passwords have been used, the plaintext passwords can be recovered from the hash values. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

An issue was discovered on D-Link DCS-1130 devices. The device requires that a user logging to the device to provide a username and password. However, the device does not enforce the same restriction on a specific URL thereby allowing any attacker in possession of that to view the live video feed. The severity of this attack is enlarged by the fact that there more than 100,000 D-Link devices out there.

The D-Link DIR-615 device before v20.12PTb04 doesn't use SSL for any of the authenticated pages. Also, it doesn't allow the user to generate his own SSL Certificate. An attacker can simply monitor network traffic to steal a user's credentials and/or credentials of users being added while sniffing the traffic.

Directory traversal vulnerability in the web interface on the D-Link DWR-116 device with firmware before V1.05b09 allows remote attackers to read arbitrary files via a .. (dot dot) in a "GET /uir/" request.

D-Link DGS-1510-28XMP, DGS-1510-28X, DGS-1510-52X, DGS-1510-52, DGS-1510-28P, DGS-1510-28, and DGS-1510-20 Websmart devices with firmware before 1.31.B003 allow attackers to conduct Unauthenticated Information Disclosure attacks via unspecified vectors.

D-Link DGS-1510-28XMP, DGS-1510-28X, DGS-1510-52X, DGS-1510-52, DGS-1510-28P, DGS-1510-28, and DGS-1510-20 Websmart devices with firmware before 1.31.B003 allow attackers to conduct Unauthenticated Command Bypass attacks via unspecified vectors.