SB2023092107 - Multiple vulnerabilities in Jenkins and Jenkins LTS

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Main Vulnerability Database SB2023092107

SB2023092107 - Multiple vulnerabilities in Jenkins and Jenkins LTS

Published: September 21, 2023

Security Bulletin ID SB2023092107
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Information disclosure (CVE-ID: CVE-2023-43494)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected application does not exclude sensitive build variables from this search. A remote user can gain unauthorized access to sensitive information on the system.


2) Incorrect default permissions (CVE-ID: CVE-2023-43498)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to the affected plugin creates the temporary file in the system temporary directory with the default permissions for newly created files within the Jenkins API "MultipartFormDataParser". A local user can read and write the file before it is used.


3) Incorrect default permissions (CVE-ID: CVE-2023-43497)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to the affected plugin creates the temporary file in the system temporary directory with the default permissions for newly created files within the Stapler web framework. A local user can read and write the file before it is used.


4) Incorrect default permissions (CVE-ID: CVE-2023-43496)

CWE-ID: CWE-276 - Incorrect Default Permissions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to execute arbitrary code on the system.

The vulnerability exists due to the affected plugin creates the temporary file in the system temporary directory with the default permissions for newly created files. A local user can view contents of files and directories and execute arbitrary code on the target system.


5) Stored cross-site scripting (CVE-ID: CVE-2023-43495)

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:L/UI:P/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 in the "caption" constructor parameter of ExpandableDetailsNote. A remote user can inject 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.


Remediation

Install update from vendor's website.

References