SB2021052531 - Multiple vulnerabilities in Nagios XI and Nagios Fusion
Published: May 25, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 12 vulnerabilities.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2020-28900)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to insufficient verification of data authenticity within the upgrade_to_latest.sh. A remote authenticated attacker can gain elevated privileges on the system.
2) OS Command Injection (CVE-ID: CVE-2020-28901)
CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the "component_dir" parameter in cmd_subsys.php. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) OS Command Injection (CVE-ID: CVE-2020-28902)
CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the "timezone" parameter in cmd_subsys.php. A remote authenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Cross-site scripting (CVE-ID: CVE-2020-28903)
CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
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. A remote attacker can trick the victim 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.
5) Execution with unnecessary privileges (CVE-ID: CVE-2020-28904)
CWE-ID: CWE-250 - Execution with Unnecessary Privileges
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to execution with unnecessary privileges. A remote authenticated attacker can install a malicious component containing PHP code and gain elevated privileges on the system.
6) Code Injection (CVE-ID: CVE-2020-28905)
CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in the table pagination. A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
7) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-28906)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to incorrect file permissions in fusion-sys.cfg / xi-sys.cfg. A remote authenticated attacker can modify files that are included by scripts and gain elevated privileges on the target system.
8) Improper Certificate Validation (CVE-ID: CVE-2020-28907)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to incorrect SSL certificate validation in upgrade_to_latest.sh. A remote authenticated attacker can execute arbitrary code on the target system with elevated privileges.
9) OS Command Injection (CVE-ID: CVE-2020-28908)
CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in cmd_subsys.php. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system with elevated privileges.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
10) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-28909)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to incorrect file permissions. A remote authenticated attacker can modify files that can be executed by sudo and gain elevated privileges on the target system.
11) Creation of Temporary File With Insecure Permissions (CVE-ID: CVE-2020-28910)
CWE-ID: CWE-378 - Creation of Temporary File With Insecure Permissions
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to creation of a temporary directory with insecure permissions in getprofile.sh. A remote authenticated attacker can gain elevated privileges on the target system.
12) Improper access control (CVE-ID: CVE-2020-28911)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the "test_server" command in ajaxhelper.php. A remote authenticated attacker can bypass implemented security restrictions and gain unauthorized access to sensitive information on the system.
Remediation
Install update from vendor's website.