VDB-119885 · CVE-2018-0566 · GCVE-0-2018-0566

Cybozu Office up to 10.8.0 Schedule access control

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.
4.9	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Cybozu Office up to 10.8.0 and classified as critical. The impacted element is an unknown function of the component Schedule Handler. The manipulation leads to access control. This vulnerability is referenced as CVE-2018-0566. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Cybozu Office up to 10.8.0 (Office Suite Software) and classified as critical. This issue affects an unknown part of the component Schedule Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Cybozu Office 10.0.0 to 10.8.0 allows authenticated attackers to bypass authentication to obtain the schedules without access privilege via unspecified vectors.

The bug was discovered 05/22/2018. The weakness was published 06/26/2018 (Website). The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2018-0566 since 11/27/2017. The attack may be initiated remotely. A simple authentication is necessary for exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 35 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-119876, VDB-119877, VDB-119879 and VDB-119884. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Office Suite Software

Vendor

Cybozu

Name

Office

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: 4.9
VulDB Meta Temp Score: 4.9

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
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: Access control
CWE: CWE-264
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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/27/2017 🔍
05/22/2018 +176 days 🔍
06/26/2018 +34 days 🔍
06/26/2018 +0 days 🔍
06/26/2018 +0 days 🔍
02/21/2020 +605 days 🔍

Sourcesinfo

Vendor: cybozu-global.com

Advisory: jvn.jp
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-0566 (🔍)
GCVE (CVE): GCVE-0-2018-0566
GCVE (VulDB): GCVE-100-119885
See also: 🔍

Entryinfo

Created: 06/27/2018 00:13
Updated: 02/21/2020 20:11
Changes: 06/27/2018 00:13 (62), 02/21/2020 20:11 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.