SB2023110110 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)
Published: November 1, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 vulnerabilities.
1) Information disclosure (CVE-ID: CVE-2023-5831)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/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 excessive data output by the application when s"uper_sidebar_logged_out" feature flag is enabled. A remote attacker can gain unauthorized access to sensitive information on the system.
2) Input validation error (CVE-ID: CVE-2023-5825)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
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 user can point a CI/CD Component to an incorrect path and perform a denial of service (DoS) attack.
3) Incorrect Regular Expression (CVE-ID: CVE-2023-3909)
CWE-ID: CWE-185 - Incorrect Regular Expression
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient timeout input validation when processing regular expressions in gitlab-ci.yml file. A remote user can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
4) Input validation error (CVE-ID: CVE-2023-3246)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
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 user can block Sidekiq job processor and perform a denial of service (DoS) attack.
5) Information disclosure (CVE-ID: CVE-2023-5600)
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 excessive data output by the application in the service-desk custom email template. A remote user can gain access to the titles of an private specific references.
6) Improper Authorization (CVE-ID: CVE-2023-4700)
CWE-ID: CWE-285 - Improper Authorization
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/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 bypass authorization checks.
The vulnerability exists due to improper authorization. A remote user can run jobs in protected environments and bypass any required approvals.
Remediation
Install update from vendor's website.