Cybozu Office up to 10.4.0 Email Header input validation

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

A vulnerability classified as critical has been found in Cybozu Office up to 10.4.0 (Office Suite Software). Affected is an unknown function of the component Email Header Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 10/03/2016. The weakness was presented 04/17/2017 (Website). The advisory is available at jvn.jp. This vulnerability is traded as CVE-2016-4868 since 05/17/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

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 97713). See 99922, 99921, 99920 and 99919 for similar entries.

Productinfoedit

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Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

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

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

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2infoedit

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Economy: 🔍
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Remediation: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

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 🔍
04/18/2017 +0 days 🔍

Sourcesinfoedit

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

CVE: CVE-2016-4868 (🔍)
SecurityFocus: 97713 - Cybozu Office CVE-2016-4868 Email Header Injection Vulnerability
OSVDB: - CVE-2016-4868 - Cybozu - Office - Email Header Injection Issue

See also: 🔍

Entryinfoedit

Created: 04/18/2017 10:29 AM
Changes: (64) software_type software_name software_version software_component vulnerability_discoverydate vulnerability_cwe vulnerability_risk vulnerability_cvss2_vuldb_basescore vulnerability_cvss2_vuldb_tempscore vulnerability_cvss2_vuldb_av vulnerability_cvss2_vuldb_ac vulnerability_cvss2_vuldb_au vulnerability_cvss2_vuldb_ci vulnerability_cvss2_vuldb_ii vulnerability_cvss2_vuldb_ai vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_vuldb_basescore vulnerability_cvss3_vuldb_tempscore vulnerability_cvss3_vuldb_av vulnerability_cvss3_vuldb_ac vulnerability_cvss3_vuldb_pr vulnerability_cvss3_vuldb_ui vulnerability_cvss3_vuldb_s vulnerability_cvss3_vuldb_c vulnerability_cvss3_vuldb_i vulnerability_cvss3_vuldb_a vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a advisory_date advisory_url advisory_confirm_url exploit_price_0day source_cve source_cve_assigned source_cve_nvd_published source_cve_nvd_summary source_osvdb_title source_securityfocus source_securityfocus_date source_securityfocus_class source_securityfocus_title source_seealso advisory_location vulnerability_cvss2_vuldb_e vulnerability_cvss2_vuldb_rl vulnerability_cvss2_vuldb_rc vulnerability_cvss3_vuldb_e vulnerability_cvss3_vuldb_rl vulnerability_cvss3_vuldb_rc exploit_0day_days vulnerability_cvss3_nvd_basescore
Complete: 🔍

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