VDB-100657 · CVE-2017-2095 · BID 96429

Cybozu Garoon up to 4.2.3 Mail access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Cybozu Garoon up to 4.2.3. The impacted element is an unknown function of the component Mail. This manipulation causes access control. This vulnerability is tracked as CVE-2017-2095. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Cybozu Garoon up to 4.2.3 (Groupware Software). Affected by this vulnerability is an unknown code of the component Mail. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Cybozu Garoon 3.0.0 to 4.2.3 allows remote authenticated attackers to bypass access restriction in the mail function leading to an alteration of the order of mail folders via unspecified vectors.

The bug was discovered 02/20/2017. The weakness was disclosed 04/28/2017 with Cybozu, Inc. (Website). The advisory is shared at jvn.jp. This vulnerability is known as CVE-2017-2095 since 12/01/2016. The attack can be launched remotely. A single authentication is needed for exploitation. 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 67 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 96429†). The entries VDB-100652, VDB-100653, VDB-100654 and VDB-100655 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 4.3
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: Access control
CWE: 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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OpenVAS ID: 801056
OpenVAS Name: Cybozu Garoon Multiple Vulnerabilities - Apr17
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/01/2016 🔍
02/20/2017 +81 days 🔍
02/20/2017 +0 days 🔍
04/28/2017 +67 days 🔍
04/28/2017 +0 days 🔍
04/28/2017 +0 days 🔍
12/21/2020 +1333 days 🔍

Sourcesinfo

Vendor: cybozu-global.com

Advisory: jvn.jp
Researcher: Cybozu, Inc.
Organization: Cybozu, Inc.
Status: Not defined

CVE: CVE-2017-2095 (🔍)
GCVE (CVE): GCVE-0-2017-2095
GCVE (VulDB): GCVE-100-100657
SecurityFocus: 96429 - Cybozu Garoon Multiple Security Vulnerabilities
OSVDB: - CVE-2017-2095 - Cybozu - Garoon - Medium

See also: 🔍

Entryinfo

Created: 04/28/2017 23:44
Updated: 12/21/2020 17:10
Changes: 04/28/2017 23:44 (65), 09/21/2020 18:04 (5), 12/21/2020 17:10 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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