There is an arbitrary password modification vulnerability in a D-LINK DSL-2888A router product. An attacker can use this vulnerability to modify the password of the admin user without authorization.

register_send.php on D-Link DIR-850L REV. B (with firmware through FW208WWb02) devices does not require authentication, which can result in unintended enrollment in mydlink Cloud Services.

Missing authentication for critical function in DAP-1880AC firmware version 1.21 and earlier allows a remote attacker to login to the device as an authenticated user without the access privilege via unspecified vectors.

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. A cfm UDP service listening on port 65002 allows remote, unauthenticated exfiltration of administrative credentials.

D-Link DIR-868L B1 router firmware version FW2.05WWB02 contains an unauthenticated OS command injection vulnerability in the fileaccess.cgi component. The endpoint /dws/api/UploadFile accepts a pre_api_arg parameter that is passed directly to system-level shell execution functions without sanitization or authentication. Remote attackers can exploit this to execute arbitrary commands as root via crafted HTTP requests.

An issue was discovered on D-Link DAP-1360 revision F devices. Remote attackers can start a telnet service without authorization via an undocumented HTTP request. Although this is the primary vulnerability, the impact depends on the firmware version. Versions 609EU through 613EUbeta were tested. Versions through 6.12b01 have weak root credentials, allowing an attacker to gain remote root access. After 6.12b01, the root credentials were changed but the telnet service can still be started without authorization.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of D-Link DCS-960L v1.07.102. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the SOAPAction request header, the process does not properly validate the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the admin user. Was ZDI-CAN-8458.

An issue was discovered on D-Link DIR-600M 3.02, 3.03, 3.04, and 3.06 devices. wan.htm can be accessed directly without authentication, which can lead to disclosure of information about the WAN, and can also be leveraged by an attacker to modify the data fields of the page.

There are some web interfaces without authentication requirements on D-Link DIR-868L B1-2.03 and DIR-817LW A1-1.04 routers. An attacker can get the router's username and password (and other information) via a DEVICE.ACCOUNT value for SERVICES in conjunction with AUTHORIZED_GROUP=1%0a to getcfg.php. This could be used to control the router remotely.

D-Link DIR-822+ V1.0.2 contains a login bypass in the HNAP1 interface, which allows attackers to log in to administrator accounts with empty passwords.

Missing Authentication for Critical Function vulnerability in debug_post_set.cgi of D-Link DWR-932C E1 firmware allows an unauthenticated attacker to execute administrative actions.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, was found in D-Link DAR-7000-40 V31R02B1413C. This affects an unknown part of the file /url/url.php. The manipulation of the argument file_upload leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-264531. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

In D-LINK Go-RT-AC750 v101b03, the sprintf function in the sub_40E700 function within the cgibin is susceptible to stack overflow.

D-link DIR-816 A2 v1.10 is affected by a remote code injection vulnerability. An HTTP request parameter can be used in command string construction in the handler function of the /goform/dir_setWanWifi, which can lead to command injection via shell metacharacters in the statuscheckpppoeuser parameter.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in D-Link DAR-7000-40 V31R02B1413C and classified as critical. This issue affects some unknown processing of the file /useratte/resmanage.php. The manipulation of the argument load leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-264533 was assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

An issue was discovered in D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/addassignment route, a very long text entry for the"'s_ip" and "s_mac" fields could lead to a Stack-Based Buffer Overflow and overwrite the return address.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, has been found in D-Link DAR-7000-40 V31R02B1413C. Affected by this issue is some unknown functionality of the file /useratte/resmanage.php. The manipulation of the argument file leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-264530 is the identifier assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability has been found in D-Link DAR-7000-40 V31R02B1413C and classified as critical. This vulnerability affects unknown code of the file /firewall/urlblist.php. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-264532. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.

D-Link DIR_878_FW1.30B08 was discovered to contain a command injection vulnerability via the component /SetNetworkSettings/SubnetMask. This vulnerability allows attackers to escalate privileges to root via a crafted payload.

A security vulnerability has been detected in D-Link DI-8100 16.07.26A1. Affected by this vulnerability is the function url_rule_asp of the file /url_rule.asp of the component POST Parameter Handler. Such manipulation leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.

D-Link DIR 645A1 1.06B01_Beta01 was discovered to contain a stack overflow via the service= variable in the genacgi_main function.

Remote Command Execution (RCE) vulnerability exists in HNAP1/control/SetWizardConfig.php in D-Link Router DIR-846 DIR846A1_FW100A43.bin and DIR846enFW100A53DLA-Retail.bin. Malicoius users can use this vulnerability to use "\ " or backticks in the shell metacharacters in the ssid0 or ssid1 parameters to cause arbitrary command execution. Since CVE-2019-17510 vulnerability has not been patched and improved www/hnap1/control/setwizardconfig.php, can also use line breaks and backquotes to bypass.

D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_8004776c in /formVirtualServ. This vulnerability is triggered via a crafted POST request.

D-Link DIR-859 A1 1.05 was discovered to contain a command injection vulnerability via the service= variable in the soapcgi_main function.

D-Link DHP-W310AV 3.10EU was discovered to contain a command injection vulnerability via the System Checks function.

D-Link DIR878 1.02B04 and 1.02B05 are vulnerable to Buffer Overflow.

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

D-Link DIR-816 A2 1.10 B05 allows unauthenticated attackers to arbitrarily reset the device via a crafted tokenid parameter to /goform/form2Reboot.cgi.

D-Link DIR-816 A2 1.10 B05 was discovered to contain a stack overflow via the wizardstep4_pskpwd parameter at /goform/form2WizardStep4.

D-Link DIR-823G v1.0.2 was found to contain a command injection vulnerability in the function SetNetworkTomographySettings. This vulnerability allows attackers to execute arbitrary commands via a crafted packet.

D-Link DIR878 1.30B08 Hotfix_04 was discovered to contain a command injection vulnerability via the component /bin/proc.cgi.

An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices. Because strcat is misused, there is a stack-based buffer overflow that does not require authentication.

D-Link DIR-615 devices have a buffer overflow via a long Authorization HTTP header.

D-Link DIR845L v1.00-v1.03 contains a Static Default Credential vulnerability in /etc/init0.d/S80telnetd.sh.

A command injection vulnerability exists in D-Link DAP-1650 devices when handling UPnP SUBSCRIBE messages. An unauthenticated attacker can exploit this vulnerability to gain command execution on the device as root.

An issue was discovered in 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/addRouting route. This could lead to Command Injection via Shell Metacharacters.

In D-Link DIR-816 A2_v1.10CNB04.img the network can be initialized without authentication via /goform/wizard_end.

D-link DIR-816 A2_v1.10CNB04.img is vulnerable to Command injection via /goform/NTPSyncWithHost.

D-link DIR-816 A2_v1.10CNB04.img is vulnerable to Buffer Overflow via /goform/form2Wan.cgi. When wantype is 3, l2tp_usrname will be decrypted by base64, and the result will be stored in v94, which does not check the size of l2tp_usrname, resulting in stack overflow.

In D-Link DIR-816 A2_v1.10CNB04, DIR-878 DIR_878_FW1.30B08.img a command injection vulnerability occurs in /goform/Diagnosis, after the condition is met, setnum will be spliced into v10 by snprintf, and the system will be executed, resulting in a command injection vulnerability

D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable to Buffer Overflow via cgibin, hnap_main,

DIR845L A1 v1.00-v1.03 is vulnerable to command injection via /htdocs/upnpinc/gena.php.

D-Link DIR845L A1 contains a authentication vulnerability via an AUTHORIZED_GROUP=1 value, as demonstrated by a request for getcfg.php.

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 POST parameters passed in this request (to test if email 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 library "libmailutils.so" is the one that has the vulnerable function "sub_1FC4" that receives the values sent by the POST request. If we open this binary in IDA-pro we will notice that this follows an ARM little endian format. The function sub_1FC4 in IDA pro is identified to be receiving the values sent in the POST request and the value set in POST parameter "receiver1" is extracted in function "sub_15AC" which is then passed to the vulnerable system API call. The vulnerable library function is accessed in "cgibox" binary at address 0x0008F598 which calls the "mailLoginTest" function in "libmailutils.so" binary as shown below which results in the vulnerable POST parameter being passed to the library which results in the command injection issue.

The web service of certain models of D-Link wireless routers contains a Stack-based Buffer Overflow vulnerability, which allows unauthenticated remote attackers to exploit this vulnerability to execute arbitrary code on the device.

An issue was discovered on D-Link DCS-1100 and DCS-1130 devices. The device has a custom telnet daemon as a part of the busybox and retrieves the password from the shadow file using the function getspnam at address 0x00053894. Then performs a crypt operation on the password retrieved from the user at address 0x000538E0 and performs a strcmp at address 0x00053908 to check if the password is correct or incorrect. However, the /etc/shadow file is a part of CRAM-FS filesystem which means that the user cannot change the password and hence a hardcoded hash in /etc/shadow is used to match the credentials provided by the user. This is a salted hash of the string "admin" and hence it acts as a password to the device which cannot be changed as the whole filesystem is read only.

D-LINK DIR-818LW A1:DIR818L_FW105b01 was discovered to contain a remote code execution (RCE) vulnerability via the function ssdpcgi_main.

D-Link DIR810LA1_FW102B22 was discovered to contain a command injection vulnerability via the Ping_addr function.

A vulnerability was determined in D-Link DIR-816L 2_06_b09_beta. This issue affects the function soapcgi_main of the file /soap.cgi. This manipulation causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.

An issue was discovered on D-Link DCS-1100 and DCS-1130 devices. The binary rtspd in /sbin folder of the device handles all the rtsp connections received by the device. It seems that the binary performs a memcpy operation at address 0x00011E34 with the value sent in the "Authorization: Basic" RTSP header and stores it on the stack. The number of bytes to be copied are calculated based on the length of the string sent in the RTSP header by the client. As a result, memcpy copies more data then it can hold on stack and this results in corrupting the registers for the caller function sub_F6CC which results in memory corruption. The severity of this attack is enlarged by the fact that the same value is then copied on the stack in the function 0x00011378 and this allows to overflow the buffer allocated and thus control the PC register which will result in arbitrary code execution on the device.