SB2019071806 - Multiple vulnerabilities in Cybozu Garoon



SB2019071806 - Multiple vulnerabilities in Cybozu Garoon

Published: July 18, 2019

Security Bulletin ID SB2019071806
Severity
Medium
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 25% Low 75%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) DOM-based cross-site scripting (CVE-ID: CVE-2019-5975)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "Portal" application. A remote unauthenticated attacker can trick the logged in user to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.


2) Input validation error (CVE-ID: CVE-2019-5976)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote authenticated administrator can alter session authentication data and crash the target component.


3) Email header injection (CVE-ID: CVE-2019-5977)

The vulnerability allows a remote attacker to send out arbitrary email messages.

The vulnerability exist due to the mail header injection in the "E-mail" application. A remote authenticated attacker can send out emails with tampered headers.



4) Open redirect (CVE-ID: CVE-2019-5978)

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data in the "Scheduler" application. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.


Remediation

Install update from vendor's website.