Thomson TCW710 ST5D.10.05 /goform/RgDhcp PppUserName Persistent cross site scripting
A vulnerability was found in Thomson TCW710 ST5D.10.05. It has been classified as problematic. This affects an unknown part of the file /goform/RgDhcp. The manipulation of the argument PppUserName with the input ><script>alert(1)</script>
as part of POST Request leads to basic cross site scripting (Persistent). The CWE definition for the vulnerability is CWE-80. The weakness was shared 02/19/2018 by moikano as Auditando router thomson tcw710 as Advisory (Website). It is possible to read the advisory at alquimistadesistemas.com.
This vulnerability is uniquely identified as CVE-2018-25038. It is possible to initiate the attack remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The pricing for an exploit might be around USD $0-$5k at the moment. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.
It is declared as proof-of-concept. The exploit is shared for download at alquimistadesistemas.com. We expect the 0-day to have been worth approximately $0-$5k.
It is recommended to apply restrictive firewalling. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
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