NEOJAPAN Denbun multipart/form-data memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in NEOJAPAN Denbun. This affects an unknown function of the component multipart/form-data Handler. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2018-0684. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in NEOJAPAN Denbun (affected version unknown) and classified as critical. This vulnerability affects an unknown functionality of the component multipart/form-data Handler. The manipulation with an unknown input 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:

Buffer overflow in Denbun by NEOJAPAN Inc. (Denbun POP version V3.3P R3.0 and earlier, Denbun IMAP version V3.3I R3.0 and earlier) allows remote attackers to execute arbitrary code or cause a denial-of-service (DoS) condition via multipart/form-data format data.

The bug was discovered 10/04/2018. The weakness was shared 11/15/2018 (Website). The advisory is shared for download at jvn.jp. This vulnerability was named CVE-2018-0684 since 11/27/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 42 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.

The entries VDB-126900, VDB-126901, VDB-126902 and VDB-126903 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
10/04/2018 +311 days 🔍
11/15/2018 +42 days 🔍
11/15/2018 +0 days 🔍
11/16/2018 +1 days 🔍
04/13/2020 +514 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Not defined

CVE: CVE-2018-0684 (🔍)
GCVE (CVE): GCVE-0-2018-0684
GCVE (VulDB): GCVE-100-126904
See also: 🔍

Entryinfo

Created: 11/16/2018 07:44
Updated: 04/13/2020 12:19
Changes: 11/16/2018 07:44 (56), 04/13/2020 12:19 (1)
Complete: 🔍
Cache ID: 216::103

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