An issue was discovered on D-Link DVA-5592 A1_WI_20180823 devices. If the PIN of the page "/ui/cbpc/login" is the default Parental Control PIN (0000), it is possible to bypass the login form by editing the path of the cookie "sid" generated by the page. The attacker will have access to the router control panel with administrator privileges.

The D-Link DSL6740C modem has an Incorrect Use of Privileged APIs vulnerability, allowing unauthenticated remote attackers to modify any user’s password by leveraging the API, thereby granting access to Web, SSH, and Telnet services using that user’s account.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in D-Link DIR-859 1.06B01. It has been rated as critical. Affected by this issue is some unknown functionality of the file /hedwig.cgi of the component HTTP POST Request Handler. The manipulation of the argument service with the input ../../../../htdocs/webinc/getcfg/DHCPS6.BRIDGE-1.xml leads to path traversal. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-251666 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.

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

A security issue exists in D-Link D-View 8 v2.0.2.89 and prior that could allow an attacker to manipulate the probe inventory of the D-View service. This could result in the disclosure of information from other probes, denial of service conditions due to the probe inventory becoming full, or the execution of tasks on other probes.

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

A vulnerability was identified in D-Link DIR-825 2.10. Affected by this vulnerability is the function get_ping_app_stat of the file ping_response.cgi of the component httpd. The manipulation of the argument ping_ipaddr leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability was found in D-Link DIR-513 up to 1.10 and classified as critical. This issue affects the function formSetWanL2TPcallback of the file /goform/formSetWanL2TPtriggers of the component HTTP POST Request Handler. The manipulation leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

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.

A vulnerability was found in D-Link DIR-513 1.10. It has been rated as critical. Affected by this issue is the function websAspInit of the file /goform/formSetWanPPPoE. The manipulation of the argument curTime leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

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.

A vulnerability classified as critical has been found in D-Link DIR-513 1.10. This affects the function formSetWanPPTPcallback of the file /goform/formSetWanPPTPpath of the component HTTP POST Request Handler. The manipulation of the argument curTime leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

An issue in the getcfg.php component of D-Link DIR816L_FW206b01 allows attackers to access the device via a crafted payload.

D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the addhostfilter parameter in /goform/websHostFilter.

An issue was discovered 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. The administrative password is stored in plaintext in the /tmp/csman/0 file. An attacker having a directory traversal (or LFI) can easily get full router access.

D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the MAC parameter in /goform/editassignment.

D-Link DSL-G2452DG HW:T1\\tFW:ME_2.00 was discovered to contain insecure permissions.

D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the IPADDR and nvmacaddr parameters in /goform/form2Dhcpip.

A vulnerability has been found in D-Link DAR-7000 up to 20231126 and classified as critical. This vulnerability affects unknown code of the file /user/inc/workidajax.php. The manipulation of the argument id leads to sql injection. The exploit has been disclosed to the public and may be used. VDB-247162 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

An issue was discovered on the D-Link DWR-932B router. qmiweb allows command injection with ` characters.

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.

A stack-based buffer overflow was found on the D-Link DIR-842 REVC with firmware v3.13B09 HOTFIX due to the use of strcpy for LOGINPASSWORD when handling a POST request to the /MTFWU endpoint.

The LAN-side Web-Configuration Interface has Stack-based Buffer Overflow vulnerability in the D-Link Wi-Fi router firmware DIR-890L DIR890LA1_FW107b09.bin and previous versions. The function created at 0x17958 of /htdocs/cgibin will call sprintf without checking the length of strings in parameters given by HTTP header and can be controlled by users easily. The attackers can exploit the vulnerability to carry out arbitrary code by means of sending a specially constructed payload to port 49152.

A vulnerability classified as critical was found in D-Link DI-8100 1.0. This vulnerability affects the function sprintf of the file /upnp_ctrl.asp of the component jhttpd. The manipulation of the argument remove_ext_proto/remove_ext_port leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the proto parameter in /goform/form2IPQoSTcAdd.

D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the addurlfilter parameter in /goform/websURLFilter.

D-Link DAP-1330_OSS-firmware_1.00b21 was discovered to contain a stack overflow via the function checkvalidupgrade.

D-Link DAP-1330_OSS-firmware_1.00b21 was discovered to contain a heap overflow via the devicename parameter in /goform/setDeviceSettings.

Use of a static key to protect a JWT token used in user authentication can allow an for an authentication bypass in D-Link D-View 8 v2.0.1.28

A vulnerability, which was classified as critical, has been found in D-Link DIR-825 2.10. This issue affects the function sub_410DDC of the file switch_language.cgi of the component httpd. The manipulation of the argument Language leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. 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 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.

An issue in D-Link DIR-850L v.B1_FW223WWb01 allows a remote attacker to execute arbitrary code via a crafted script to the en parameter.

D-Link DIR-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the lanip parameter in /goform/setNetworkLan.

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.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as critical, has been found in D-Link DAR-7000 up to 20151231. This issue affects some unknown processing of the file /log/webmailattach.php. The manipulation of the argument table_name leads to an unknown weakness. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-240239. 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-816 A2_v1.10CNB04 was discovered to contain a stack overflow via the urladd parameter in /goform/websURLFilterAddDel.

A vulnerability, which was classified as critical, has been found in D-Link DIR-632 FW103B08. Affected by this issue is the function get_pure_content of the component HTTP POST Request Handler. The manipulation of the argument Content-Length leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

D-Link DIR-619L 2.06B01 is vulnerable to Buffer Overflow in the formWlanSetup function via the parameter f_wds_wepKey.

A vulnerability has been found in D-Link DIR-816 1.10CNB05 and classified as critical. This vulnerability affects unknown code of the file /goform/form2lansetup.cgi. The manipulation of the argument ip leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been classified as critical. This affects the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

D-Link DIR-619L 2.06B01 is vulnerable to Buffer Overflow in the formLanguageChange function via the nextPage parameter.

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a stack overflow via the id parameter in the yyxz.data function.

D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function SetStationSettings. This vulnerability allows attackers to execute arbitrary commands via the station_access_enable parameter.

D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function SetNetworkTomographySettings. This vulnerability allows attackers to execute arbitrary commands via the tomography_ping_address, tomography_ping_number, tomography_ping_size, tomography_ping_timeout, and tomography_ping_ttl parameters.

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a command injection vulnerability in the function wget_test.asp. This vulnerability allows attackers to execute arbitrary commands via the url parameter.

An issue was discovered on D-Link DIR-825 R1 devices through 3.0.1 before 2020-11-20. A buffer overflow in the web interface allows attackers to achieve pre-authentication remote code execution.

D-Link device D-Link DIR-823-Pro v1.0.2 was discovered to contain a command injection vulnerability in the function ChgSambaUserSettings. This vulnerability allows attackers to execute arbitrary commands via the samba_name parameter.

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a command injection vulnerability in the function httpd_debug.asp. This vulnerability allows attackers to execute arbitrary commands via the time parameter.

D-Link device DI-7200GV2.E1 v21.04.09E1 was discovered to contain a command injection vulnerability in the function proxy_client.asp. This vulnerability allows attackers to execute arbitrary commands via the proxy_srv, proxy_srvport, proxy_lanip, proxy_lanport parameters.

In the "webupg" binary of D-Link DIR-825 G1, attackers can bypass authentication through parameters "autoupgrade.asp", and perform functions such as downloading configuration files and updating firmware without authorization.