Cybozu Office up to 10.4.0 Schedule cross site scripting

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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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4.4$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Cybozu Office up to 10.4.0 (Office Suite Software). Affected by this issue is the function Schedule. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. Impacted is integrity. An attacker might be able to inject arbitrary html and script code into the web site. This would alter the appearance and would make it possible to initiate further attacks against site visitors.

The bug was discovered 10/03/2016. The weakness was published 04/17/2017 by Yuji Tounai (Website). The advisory is shared for download at jvn.jp. This vulnerability is handled as CVE-2016-4870 since 05/17/2016. The attack may be launched remotely. A simple authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

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 93281). Similar entries are available at 99915 and 99916.

Productinfoedit

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Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Cross site scripting
CWE: CWE-79
ATT&CK: T1059.007

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

05/17/2016 🔍
10/03/2016 +139 days 🔍
10/03/2016 +0 days 🔍
04/17/2017 +196 days 🔍
04/17/2017 +0 days 🔍
04/18/2017 +1 days 🔍
08/31/2020 +1231 days 🔍

Sourcesinfoedit

Advisory: jvn.jp
Researcher: Yuji Tounai
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4870 (🔍)
SecurityFocus: 93281 - Cybozu Office Multiple Cross Site Scripting Vulnerabilities
OSVDB: - CVE-2016-4870 - Cybozu - Office - Cross-Site Scripting Issue

See also: 🔍

Entryinfoedit

Created: 04/18/2017 10:30 AM
Updated: 08/31/2020 04:31 PM
Changes: (2) vulnerability_discoverydate source_osvdb_title
Complete: 🔍

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