Tenda AC23 httpd formGetSysToolDDNS out-of-bounds write

A vulnerability was found in Tenda AC23 16.03.07.45 and classified as critical. Affected by this issue is the function formSetSysToolDDNS/formGetSysToolDDNS of the file /bin/httpd. The manipulation leads to out-of-bounds write. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-220640.

The get_parentControl_list_Info function does not verify the parameters entered by the user, causing a post-authentication heap overflow vulnerability in Tenda AC23 v16.03.07.45_cn

The sub_451784 function does not validate the parameters entered by the user, resulting in a stack overflow vulnerability in Tenda AC23 v16.03.07.45_cn

The compare_parentcontrol_time function does not authenticate user input parameters, resulting in a post-authentication stack overflow vulnerability in Tenda AC23 v16.03.07.45_cn.

Tenda AC23 Vv16.03.07.45_cn is vulnerable to Buffer Overflow via sub_450A4C function.

In Tenda AC23 v16.03.07.45_cn, the formSetIPv6status and formGetWanParameter functions do not authenticate user input parameters, resulting in a post-authentication stack overflow vulnerability.

In Tenda AC23 v16.03.07.45_cn, the sub_4781A4 function does not validate the parameters entered by the user, resulting in a post-authentication stack overflow vulnerability.

Tenda AC23 Service Port 7329 ate command injection

A vulnerability was found in Tenda AC23 16.03.07.45_cn. It has been declared as critical. This vulnerability affects unknown code of the file /bin/ate of the component Service Port 7329. The manipulation of the argument v2 leads to command injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-228778 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.