VDB-102191 · CVE-2016-7832 · BID 94831

Cybozu Dezie up to 8.1.1 DBM 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 (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cybozu Dezie up to 8.1.1. It has been classified as critical. Affected by this issue is some unknown functionality of the component DBM Handler. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2016-7832. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Cybozu Dezie up to 8.1.1 and classified as critical. This issue affects an unknown code block of the component DBM Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Cybozu Dezie 8.0.0 to 8.1.1 allows remote attackers to bypass access restrictions to obtain an arbitrary DBM (Cybozu Dezie proprietary format) file via unspecified vectors.

The bug was discovered 12/12/2016. The weakness was released 06/09/2017 (Website). It is possible to read the advisory at jvn.jp. The identification of this vulnerability is CVE-2016-7832 since 09/09/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 179 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 94831†). Entry connected to this vulnerability is available at VDB-102192. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: 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

09/09/2016 🔍
12/12/2016 +94 days 🔍
12/12/2016 +0 days 🔍
06/09/2017 +179 days 🔍
06/09/2017 +0 days 🔍
06/10/2017 +1 days 🔍
10/15/2019 +857 days 🔍

Sourcesinfo

Vendor: cybozu-global.com

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

CVE: CVE-2016-7832 (🔍)
GCVE (CVE): GCVE-0-2016-7832
GCVE (VulDB): GCVE-100-102191
SecurityFocus: 94831 - Cybozu Dezie JVN#16781735 Multiple Security Bypass Vulnerabilities

See also: 🔍

Entryinfo

Created: 06/10/2017 08:55
Updated: 10/15/2019 18:34
Changes: 06/10/2017 08:55 (60), 10/15/2019 18:34 (3)
Complete: 🔍
Cache ID: 216::103

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

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