VDB-100354 · CVE-2016-4843 · BID 92461

Cybozu Mailwise up to 5.3.x Cookie 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.
5.6	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Cybozu Mailwise up to 5.3.x. Affected by this issue is some unknown functionality of the component Cookie. Executing a manipulation can lead to information disclosure. The identification of this vulnerability is CVE-2016-4843. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Cybozu Mailwise up to 5.3.x and classified as problematic. This vulnerability affects some unknown functionality of the component Cookie. 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. CVE summarizes:

Cybozu Mailwise before 5.4.0 allows remote attackers to obtain sensitive cookie information.

The bug was discovered 08/16/2016. The weakness was shared 04/20/2017 by Masato Kinugawa (Website). The advisory is available at jvn.jp. This vulnerability was named CVE-2016-4843 since 05/17/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 247 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.4.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 92461†). The entries VDB-100355 and VDB-100353 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Cybozu

Name

Mailwise

Version

License

commercial

Website

Vendor: https://cybozu-global.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 801056
OpenVAS Name: Cybozu Mailwise Multiple Vulnerabilities Aug-2016
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mailwise 5.4.0

Timelineinfo

05/17/2016 🔍
08/16/2016 +91 days 🔍
08/16/2016 +0 days 🔍
04/20/2017 +247 days 🔍
04/20/2017 +0 days 🔍
04/21/2017 +1 days 🔍
09/18/2020 +1246 days 🔍

Sourcesinfo

Vendor: cybozu-global.com

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

CVE: CVE-2016-4843 (🔍)
GCVE (CVE): GCVE-0-2016-4843
GCVE (VulDB): GCVE-100-100354
SecurityFocus: 92461 - Cybozu Mailwise CVE-2016-4843 Information Disclosure Vulnerability
OSVDB: - CVE-2016-4843 - Cybozu - Mailwise - Information Disclosure Issue

See also: 🔍

Entryinfo

Created: 04/21/2017 09:49
Updated: 09/18/2020 17:53
Changes: 04/21/2017 09:49 (69), 09/18/2020 17:53 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.