D-Link G416 flupl self Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 wireless routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21294.

D-Link DIR_823G 1.0.2B05 was discovered to contain a command injection vulnerability via the Address parameter in the SetNetworkTomographySettings function. This vulnerability allows attackers to execute arbitrary OS commands via a crafted request.

D-Link DSL6740C v6.TR069.20211230 was discovered to use insecure default credentials for Administrator access, possibly allowing attackers to bypass authentication and escalate privileges on the device via a bruteforce attack.

D-Link DI_8004W 16.07.26A1 contains a command execution vulnerability in the jhttpd upgrade_filter_asp function.

D-Link DI-7003GV2 v24.04.18D1, DI-7100G+V2 v24.04.18D1, DI-7100GV2 v24.04.18D1, DI-7200GV2 v24.04.18E1, DI-7300G+V2 v24.04.18D1, and DI-7400G+V2 v24.04.18D1 are vulnerable to Remote Command Execution due to insufficient parameter filtering in the CGI handling function of upgrade_filter.asp.

D-Link DI-7003G v19.12.24A1, DI-7003GV2 v24.04.18D1, DI-7100G+V2 v24.04.18D1, DI-7100GV2 v24.04.18D1, DI-7200GV2 v24.04.18E1, DI-7300G+V2 v24.04.18D1, and DI-7400G+V2 v24.04.18D1 are vulnerable to Remote Command Execution (RCE) via version_upgrade.asp.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. When parsing the getpage parameter, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10932.

D-Link DIR-822+ V1.0.5 was found to contain a command injection in ChgSambaUserSettings function of prog.cgi, which allows remote attackers to execute arbitrary commands via shell.

In D-Link DIR-860L REVA FIRMWARE PATCH 1.10..B04, the Telnet service contains hardcoded credentials, enabling attackers to log in remotely to the Telnet service and perform arbitrary commands.

** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as very critical, has been found in D-Link DNS-320L, DNS-325, DNS-327L and DNS-340L up to 20240403. This issue affects some unknown processing of the file /cgi-bin/nas_sharing.cgi of the component HTTP GET Request Handler. The manipulation of the argument user with the input messagebus leads to hard-coded credentials. 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-259283. 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 on the D-Link DWR-932B router. There is a hardcoded WPS PIN of 28296607.

D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices have 0644 /var/etc/shadow (aka the /etc/shadow symlink target) permissions.

D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices use the same hardcoded /etc/stunnel.key private key across different customers' installations, which allows remote attackers to defeat the HTTPS cryptographic protection mechanisms by leveraging knowledge of this key from another installation.

D-Link DIR-850L REV. B (with firmware through FW208WWb02) devices have a hardcoded password of wrgac25_dlink.2013gui_dir850l for the Alphanetworks account upon device reset, which allows remote attackers to obtain root access via a TELNET session.

D-Link DIR-850L REV. A (with firmware through FW114WWb07_h2ab_beta1) and REV. B (with firmware through FW208WWb02) devices have 0666 /var/run/hostapd* permissions.

D-Link DIR-615 before v20.12PTb04 has a second admin account with a 0x1 BACKDOOR value, which might allow remote attackers to obtain access via a TELNET connection.

D-LINK Go-RT-AC750 GORTAC750_A1_FW_v101b03 has a hardcoded password for the Alphanetworks account, which allows remote attackers to obtain root access via a telnet session.

D-Link DGS-1100 devices with Rev.B firmware 1.01.018 have a hardcoded SSL private key, which allows man-in-the-middle attackers to spoof devices by hijacking an HTTPS session.

An issue was discovered on the D-Link DWR-932B router. Undocumented TELNET and SSH services provide logins to admin with the password admin and root with the password 1234.

D-Link DVG-N5402SP with firmware W1000CN-00, W1000CN-03, or W2000EN-00 has a default password of root for the root account and tw for the tw account, which makes it easier for remote attackers to obtain administrative access.

D-Link DVX-2000MS 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.

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

D-Link DIR-890L 1.20b01 allows attackers to execute arbitrary code due to the hardcoded option Wake-On-Lan for the parameter 'descriptor' at SetVirtualServerSettings.php

A hard-coded password vulnerability exists in the Libcli Test Environment functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to code execution. An attacker can send a sequence of requests to trigger this vulnerability.

A hard-coded password vulnerability exists in the Zebra IP Routing Manager functionality of D-LINK DIR-3040 1.13B03. A specially crafted network request can lead to a denial of service. An attacker can send a sequence of requests to trigger this vulnerability.

D-Link D-View InstallApplication Use of Hard-coded Credentials 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 InstallApplication class. The class contains a hard-coded password for the remotely reachable database. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19553.

An Authentication vulnerability exists in D-LINK WCS-1100 1.02, TESCO DCS-2121 1.05_TESCO, TESCO DCS-2102 1.05_TESCO, DCS-7510 1.00, DCS-7410 1.00, DCS-6410 1.00, DCS-5635 1.01, DCS-5605 1.01, DCS-5230L 1.02, DCS-5230 1.02, DCS-3430 1.02, DCS-3411 1.02, DCS-3410 1.02, DCS-2121 1.06_FR, DCS-2121 1.06, DCS-2121 1.05_RU, DCS-2102 1.06_FR, DCS-2102 1.06, DCS-2102 1.05_RU, DCS-1130L 1.04, DCS-1130 1.04_US, DCS-1130 1.03, DCS-1100L 1.04, DCS-1100 1.04_US, and DCS-1100 1.03 due to hard-coded credentials that serve as a backdoor, which allows remote attackers to access the RTSP video stream.

D-Link DGS-1500 Ax devices before 2.51B021 have a hardcoded password, which allows remote attackers to obtain shell access.

A vulnerability, which was classified as critical, has been found in D-Link DIR-890L up to 111b04. This issue affects some unknown processing of the file rgbin of the component UART Port. The manipulation leads to hard-coded credentials. It is possible to launch the attack on the physical device. 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 DPH-400S/SE VoIP Phone v1.01 contains hardcoded provisioning variables, including PROVIS_USER_PASSWORD, which may expose sensitive user credentials. An attacker with access to the firmware image can extract these credentials using static analysis tools such as strings or xxd, potentially leading to unauthorized access to device functions or user accounts. This vulnerability exists due to insecure storage of sensitive information in the firmware binary.

The D-Link router DIR-880L 1.07 is vulnerable to credentials disclosure in telnet service through decompilation of firmware, that allows an unauthenticated attacker to gain access to the firmware and to extract sensitive data.

The D-link router DIR-885L-MFC 1.15b02, v1.21b05 is vulnerable to credentials disclosure in telnet service through decompilation of firmware, that allows an unauthenticated attacker to gain access to the firmware and to extract sensitive data.

The D-Link router DIR-868L 3.01 is vulnerable to credentials disclosure in telnet service through decompilation of firmware, that allows an unauthenticated attacker to gain access to the firmware and to extract sensitive data.

An information disclosure vulnerability exists in the WiFi Smart Mesh functionality of D-LINK DIR-3040 1.13B03. A specially-crafted network request can lead to command execution. An attacker can connect to the MQTT service to trigger this vulnerability.

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-620 devices, with a certain Rostelekom variant of firmware 1.0.37, have a hardcoded rostel account, which makes it easier for remote attackers to obtain access via a TELNET session.

D-Link DIR-820LW REVB FIRMWARE PATCH 2.03.B01_TC contains hardcoded credentials in the Telnet service, enabling attackers to log in remotely to the Telnet service and perform arbitrary commands.

D-Link COVR-2600R and COVR-3902 Kit before 1.01b05Beta01 use hardcoded credentials for telnet connection, which allows unauthenticated attackers to gain privileged access to the router, and to extract sensitive data or modify the configuration.

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.

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 DSR-500N version 1.02 contains hard-coded credentials for undocumented user accounts in the '/etc/passwd' file.If an attacker succeeds in recovering the cleartext password of the identified hash value, he will be able to log in via SSH or Telnet and thus gain access to the underlying embedded Linux operating system on the device. Fixed in version 2.12/2. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Certain models of D-Link wireless routers do not properly validate user input in the telnet service, allowing unauthenticated remote attackers to use hard-coded credentials to log into telnet and inject arbitrary OS commands, which can then be executed on the device.

An issue was discovered on D-Link DSL-2640B B2 EU_4.01B devices. A hard-coded account allows management-interface login with high privileges. The logged-in user can perform critical tasks and take full control of the device.

ZWX-2000CSW2-HN firmware versions prior to Ver.0.3.15 uses hard-coded credentials, which may allow a network-adjacent attacker with an administrative privilege to alter the configuration of the device.

WN-AX1167GR firmware version 3.00 and earlier uses hardcoded credentials which may allow an attacker that can access the device to execute arbitrary code on the device.

An issue was discovered in Infinera hiT 7300 5.60.50. A hidden SSH service (on the local management network interface) with hardcoded credentials allows attackers to access the appliance operating system (with highest privileges) via an SSH connection.

An issue was discovered in Infinera hiT 7300 5.60.50. Cleartext storage of sensitive password in firmware update packages allows attackers to access various appliance services via hardcoded credentials.

Ubee DDW365 XCNDDW365 devices have predictable default WPA2 PSKs that could lead to unauthorized remote access. A remote attacker (in proximity to a Wi-Fi network) can derive the default WPA2-PSK value by observing a beacon frame. A PSK is generated by using the first six characters of the SSID and the last six of the BSSID, decrementing the last digit.