Meinberg IMS-LANTIME up to 6.20 NTP Time Server POST Request memory corruption

Summaryinfo

A vulnerability was found in Meinberg IMS-LANTIME up to 6.20 and classified as critical. Affected by this issue is some unknown functionality of the component NTP Time Server. Executing a manipulation as part of POST Request can lead to memory corruption. This vulnerability is registered as CVE-2016-3962. It is possible to launch the attack remotely. Furthermore, an exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Meinberg IMS-LANTIME up to 6.20. It has been declared as critical. This vulnerability affects an unknown code of the component NTP Time Server. The manipulation as part of a POST Request leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in the NTP time-server interface on Meinberg IMS-LANTIME M3000, IMS-LANTIME M1000, IMS-LANTIME M500, LANTIME M900, LANTIME M600, LANTIME M400, LANTIME M300, LANTIME M200, LANTIME M100, SyncFire 1100, and LCES devices with firmware before 6.20.004 allows remote attackers to obtain sensitive information, modify data, or cause a denial of service via a crafted parameter in a POST request.

The weakness was published 07/03/2016 (Website). The advisory is shared for download at ics-cert.us-cert.gov. This vulnerability was named CVE-2016-3962 since 04/06/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 6.20.004 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (40120). Similar entries are available at VDB-88541 and VDB-88542. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Meinberg

Name

• IMS-LANTIME

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7
• 6.8
• 6.9
• 6.10
• 6.11
• 6.12
• 6.13
• 6.14
• 6.15
• 6.16
• 6.17
• 6.18
• 6.19
• 6.20

CPE 2.3info

• 🔍
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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

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