Cybozu Remote Service up to 3.1.0 Upload Java unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Cybozu Remote Service up to 3.1.0. This issue affects some unknown processing of the component Upload. The manipulation results in unrestricted upload (Java). This vulnerability is known as CVE-2018-16169. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in Cybozu Remote Service up to 3.1.0. Affected is an unknown part of the component Upload. The manipulation with an unknown input leads to a unrestricted upload vulnerability (Java). CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Cybozu Remote Service 3.0.0 to 3.1.0 allows remote authenticated attackers to upload and execute Java code file on the server via unspecified vectors.

The bug was discovered 12/10/2018. The weakness was published 01/09/2019 (Website). The advisory is shared for download at jvn.jp. This vulnerability is traded as CVE-2018-16169 since 08/30/2018. It is possible to launch the attack remotely. A authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1608.002.

The vulnerability was handled as a non-public zero-day exploit for at least 30 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 entries are available at VDB-128881, VDB-128882 and VDB-128883. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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

Name: Java
Class: Unrestricted upload / Java
CWE: CWE-434 / CWE-284 / CWE-266
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

08/30/2018 🔍
12/10/2018 +102 days 🔍
01/09/2019 +30 days 🔍
01/09/2019 +0 days 🔍
01/10/2019 +1 days 🔍
04/27/2020 +473 days 🔍

Sourcesinfo

Vendor: cybozu-global.com

Advisory: jvn.jp
Status: Not defined

CVE: CVE-2018-16169 (🔍)
GCVE (CVE): GCVE-0-2018-16169
GCVE (VulDB): GCVE-100-128880
See also: 🔍

Entryinfo

Created: 01/10/2019 13:50
Updated: 04/27/2020 16:04
Changes: 01/10/2019 13:50 (58), 04/27/2020 16:04 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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