TRENDnet TEW-751DR/TEW-752DRU/TEW733GR Web Management Backend pigwidgeon.cgi fwrite os command injection

A vulnerability was detected in TRENDnet TEW-751DR, TEW-752DRU and TEW733GR 1.03B01/1.03B03. Affected is the function fwrite of the file pigwidgeon.cgi of the component Web Management Backend. The manipulation of the argument service results in os command injection. It is possible to launch the attack remotely. The exploit is now public and may be used. The vendor confirms: "As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product." This vulnerability only affects products that are no longer supported by the maintainer.

TRENDnet Wi-Fi routers TEW751DR v1.03 and TEW-752DRU v1.03 were discovered to contain a stack overflow via the function genacgi_main.

TRENDnet TEW-751DR v1.03B03, TEW-752DRU v1.03B01, and TEW733GR v1.03B01 devices allow authentication bypass via an AUTHORIZED_GROUP=1 value, as demonstrated by a request for getcfg.php.