A vulnerability was found in TRENDnet TEW-812DRU (version now known) and classified as critical. Affected by this issue is some unknown processing of the file setNTP.cgi of the component Input Sanitizer. The manipulation of the argument NtpDstEnd/NtpDstOffset with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

TRENDnet TEW-812DRU router allows remote authenticated users to execute arbitrary commands via shell metacharacters in the (1) wan network prefix to internet/ipv6.asp; (2) remote port to adm/management.asp; (3) pptp username, (4) pptp password, (5) ip, (6) gateway, (7) l2tp username, or (8) l2tp password to internet/wan.asp; (9) NtpDstStart, (10) NtpDstEnd, or (11) NtpDstOffset to adm/time.asp; or (12) device url to adm/management.asp. NOTE: vectors 9, 10, and 11 can be exploited by unauthenticated remote attackers by leveraging CVE-2013-3098.

The weakness was released 07/28/2013 by Jacob Holcomb and Kedy Liu with Independent Security Evaluators as 27177 as not defined exploit (Exploit-DB). The advisory is available at exploit-db.com. The vendor was not involved in the coordination of the public release. This vulnerability is handled as CVE-2013-3365 since 05/06/2013. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

After immediately, there has been an exploit disclosed. The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (27177). news.cnet.com is providing further details. Entries connected to this vulnerability are available at 9805, 10481, 10482 and 10495.

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• TRENDnet

Name

• TEW-812DRU

License

• commercial

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