Cybozu Office up to 10.4.0 Project information disclosure

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CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
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4.3$0-$5k0.00

A vulnerability was found in Cybozu Office up to 10.4.0 (Office Suite Software). It has been rated as problematic. This issue affects the function Project. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. Impacted is confidentiality.

The bug was discovered 10/03/2016. The weakness was disclosed 04/17/2017 by Yuji Tounai (Website). The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2016-4867 since 05/17/2016. The attack may be initiated remotely. Required for exploitation is a simple authentication. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 196 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 vulnerability is also documented in the vulnerability database at SecurityFocus (BID 93461). The entries 99922 and 99923 are pretty similar.

Productinfoedit

Type

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Information disclosure
CWE: CWE-200
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

05/17/2016 🔍
10/03/2016 +139 days 🔍
10/07/2016 +4 days 🔍
04/17/2017 +192 days 🔍
04/17/2017 +0 days 🔍
04/18/2017 +1 days 🔍
08/31/2020 +1231 days 🔍

Sourcesinfoedit

Advisory: jvn.jp
Researcher: Yuji Tounai
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4867 (🔍)
SecurityFocus: 93461 - Cybozu Office Multiple Security Bypass Vulnerabilities
OSVDB: - CVE-2016-4867 - Cybozu - Office - Security Bypass Issue

See also: 🔍

Entryinfoedit

Created: 04/18/2017 10:28 AM
Updated: 08/31/2020 04:25 PM
Changes: (5) vulnerability_discoverydate advisory_person_name source_osvdb_title source_securityfocus_date source_securityfocus_class
Complete: 🔍

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