NoviWare up to NW400.2.6 Network Interface memory corruption

Summaryinfo

A vulnerability has been found in NoviWare up to NW400.2.6 and classified as critical. This vulnerability affects unknown code of the component Network Interface. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2017-12786. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in NoviWare up to NW400.2.6 and classified as critical. This issue affects an unknown part of the component Network Interface. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Network interfaces of the cliengine and noviengine services, included in the NoviWare software distribution through NW400.2.6 and deployed on NoviSwitch devices, can be inadvertently exposed if an operator attempts to modify ACLs, because of a bug when ACL modifications are applied. This could be leveraged by remote, unauthenticated attackers to gain resultant privileged (root) code execution on the switch, because there is a stack-based buffer overflow during unserialization of packet data.

The bug was discovered 08/16/2017. The weakness was disclosed 08/22/2017 as EDB-ID 42518 as not defined exploit (Exploit-DB). It is possible to read the advisory at exploit-db.com. The identification of this vulnerability is CVE-2017-12786 since 08/10/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k.

Addressing this vulnerability is possible by firewalling .

The vulnerability is also documented in the vulnerability database at Exploit-DB (42518). The entries VDB-105620, VDB-105646 and VDB-105648 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

• NoviWare

Version

• NW400.2.0
• NW400.2.1
• NW400.2.2
• NW400.2.3
• NW400.2.4
• NW400.2.5
• NW400.2.6

CPE 2.3info

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CPE 2.2info

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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