D-Link DIR-823G

D-Link DIR-823G goahead UpdateClientInfo access control

D-Link DIR-823G firmware version 1.02B05 has a password reset vulnerability, which originates from the SetMultipleActions API, allowing unauthorized attackers to reset the WEB page management password.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the Type parameter in the SetWLanRadioSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the Mac parameter in the SetParentsControlInfo function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the TXPower parameter in the SetWLanRadioSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the Password parameter in the SetWanSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the SSID parameter in the SetWLanRadioSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the StartTime parameter in the SetParentsControlInfo function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the GuardInt parameter in the SetWLanRadioSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the EndTime parameter in the SetParentsControlInfo function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the AdminPassword parameter in the SetDeviceSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-link DIR-823G Web boa.conf least privilege violation

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the MacAddress parameter in the SetWanSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a buffer overflow via the CurrentPassword parameter in the CheckPasswdSettings function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G v1.0.2B05_20181207 is vulnerable to Information Disclosure. The device allows unauthorized configuration file downloads, and the downloaded configuration files contain plaintext user passwords.

D-Link DIR-823G A1 v1.0.2B05 was discovered to contain a buffer overflow in the FillMacCloneMac parameter in the /EXCU_SHELL endpoint. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was found to contain a Null-pointer dereference in the main function of upload_firmware.cgi, which allows remote attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain Null-pointer dereferences in sub_4484A8(). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain Null-pointer dereferences in sub_42AF30(). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain Null-pointer dereferences in sub_4484A8(). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

D-Link DIR-823G A1V1.0.2B05 was discovered to contain a Null-pointer dereferences in sub_4110f4(). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

A command injection vulnerability exists in the D-Link DIR-823G router firmware DIR823G_V1.0.2B05_20181207.bin in the timelycheck and sysconf binaries, which process the /tmp/new_qos.rule configuration file. The vulnerability occurs because parsed fields from the configuration file are concatenated into command strings and executed via system() without any sanitization. An attacker with write access to /tmp/new_qos.rule can execute arbitrary commands on the device.

A command injection vulnerability exists in the D-Link DIR-823G router firmware DIR823G_V1.0.2B05_20181207.bin in the timelycheck and sysconf binaries, which process the /var/system/linux_vlan_reinit file. The vulnerability occurs because content read from this file is only partially validated for a prefix and then formatted using vsnprintf() before being executed with system(), allowing an attacker with write access to /var/system/linux_vlan_reinit to execute arbitrary commands on the device.