Buffalo BBR-4HG and/BBR-4MG up to 1.48/2.07 Unresponsive input validation

Summaryinfo

A vulnerability marked as problematic has been reported in Buffalo BBR-4HG and and BBR-4MG up to 1.48/2.07. This issue affects some unknown processing. The manipulation leads to input validation (Unresponsive). This vulnerability is referenced as CVE-2017-10897. The attack needs to be initiated within the local network. No exploit is available.

Detailsinfo

A vulnerability was found in Buffalo BBR-4HG and and BBR-4MG up to 1.48/2.07 and classified as problematic. This issue affects an unknown code. The manipulation with an unknown input leads to a input validation vulnerability (Unresponsive). Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

Input validation issue in Buffalo BBR-4HG and and BBR-4MG broadband routers with firmware 1.00 to 1.48 and 2.00 to 2.07 allows an attacker to cause the device to become unresponsive via unspecified vectors.

The bug was discovered 12/01/2017. The weakness was published 12/08/2017 (Website). The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2017-10897 since 07/04/2017. The exploitation is known to be easy. The attack needs to be initiated within the local network. A simple authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

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

Similar entry is available at VDB-110344. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Buffalo

Name

• BBR-4HG and
• BBR-4MG

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42
• 1.43
• 1.44
• 1.45
• 1.46
• 1.47
• 1.48
• 2.07

License

• commercial

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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