TOTOLINK A950RG Firmware 4.1.2cu.5204 B20210112 4.1.2cu.5204_b20210112

TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. The vulnerability arises from the improper input validation of the NoticeUrl parameter in the setNoticeCfg interface of /lib/cste_modules/system.so.

TOTOLink A950RG V5.9c.4050_B20190424 and V4.1.2cu.5204_B20210112 were discovered to contain a command injection vulnerability in the "Main" function. This vulnerability allows attackers to execute arbitrary commands via the QUERY_STRING parameter.

A command execution vulnerability exists in the TOTOLINK A950RG V4.1.2cu.5204_B20210112. The vulnerability is located in the setNoticeCfg interface within the /lib/cste_modules/system.so library, specifically in the processing of the IpTo parameter.

TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a command execution vulnerability in the setDeviceName interface of the /lib/cste_modules/global.so library, specifically in the processing of the deviceMac parameter.

TOTOLINK A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability in the setUrlFilterRules interface of /lib/cste_modules/firewall.so. The vulnerability occurs because the `url` parameter is not properly validated for length, allowing remote attackers to trigger a buffer overflow, potentially leading to arbitrary code execution or denial of service.

A buffer overflow vulnerability exists in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The issue resides in the setRadvdCfg interface of the /lib/cste_modules/ipv6.so module. The function fails to properly validate the length of the user-controlled radvdinterfacename parameter, allowing remote attackers to trigger a stack buffer overflow.

A stack-based buffer overflow vulnerability was identified in TOTOLINK A950RG V4.1.2cu.5204_B20210112. The flaw exists in the setIpQosRules interface of /lib/cste_modules/firewall.so where the comment parameter is not properly validated for length.

TOTOLINK A950RG V4.1.2cu.5204_B20210112 was discovered to contain a hardcoded password for root at /etc/shadow.sample.

A buffer overflow vulnerability exists in the setParentalRules interface of TOTOLINK A950RG V4.1.2cu.5204_B20210112. The urlKeyword parameter is not properly validated, and the function concatenates multiple user-controlled fields into a fixed-size stack buffer without performing boundary checks. A remote attacker can exploit this flaw to cause denial of service or potentially achieve arbitrary code execution.