VDB-99919 · CVE-2016-4869 · BID 97715

Cybozu Office up to 10.4.0 information disclosure

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
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cybozu Office up to 10.4.0. The affected element is an unknown function. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2016-4869. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Cybozu Office up to 10.4.0 (Office Suite Software). Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

Cybozu Office 9.0.0 through 10.4.0 allows remote attackers to obtain session information from users.

The bug was discovered 10/03/2016. The weakness was shared 04/17/2017 by Masato Kinugawa (Website). It is possible to read the advisory at jvn.jp. This vulnerability is known as CVE-2016-4869 since 05/17/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

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 97715†). The entries VDB-99923, VDB-99922, VDB-99921 and VDB-99920 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Information disclosure
CWE: CWE-200 / 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

05/17/2016 🔍
10/03/2016 +139 days 🔍
04/17/2017 +196 days 🔍
04/17/2017 +0 days 🔍
04/17/2017 +0 days 🔍
04/18/2017 +1 days 🔍
08/31/2020 +1231 days 🔍

Sourcesinfo

Advisory: jvn.jp
Researcher: Masato Kinugawa
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4869 (🔍)
GCVE (CVE): GCVE-0-2016-4869
GCVE (VulDB): GCVE-100-99919
SecurityFocus: 97715 - Cybozu Office CVE-2016-4869 Information Disclosure Vulnerability
OSVDB: - CVE-2016-4869 - Cybozu - Office - Information Disclosure Issue

See also: 🔍

Entryinfo

Created: 04/18/2017 10:29
Updated: 08/31/2020 16:29
Changes: 04/18/2017 10:29 (60), 08/31/2020 16:29 (5)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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