SB2023060644 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)
Published: June 6, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 14 secuirty vulnerabilities.
1) Stored cross-site scripting (CVE-ID: CVE-2023-2442)
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 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.
2) Incorrect Regular Expression (CVE-ID: CVE-2023-2199)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing regular expressions within the FrontMatterFilter in any Markdown fields. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
3) Incorrect Regular Expression (CVE-ID: CVE-2023-2198)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing regular expressions within the InlineDiffFilter in any Markdown fields. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
4) Incorrect Regular Expression (CVE-ID: CVE-2023-2132)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient input validation when processing regular expressions within the DollarMathPostFilter in Markdown fields. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
5) Resource exhaustion (CVE-ID: CVE-2023-0121)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources within the test report artifacts. A remote user can trigger resource exhaustion and perform a denial of service (DoS) attack.
6) Information disclosure (CVE-ID: CVE-2023-2589)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote attacker can clone a repository from a public project, from a disallowed IP, even after the top-level group has enabled IP restrictions on the group.
7) Cross-site scripting (CVE-ID: CVE-2023-2015)
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 Report Abuse functionality. A remote user 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.
8) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-2485)
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions. A remote administrator can escalate other users to Owners in the project if they import members from another project that those other users are Owners of.
9) Spoofing attack (CVE-ID: CVE-2023-2001)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data. A remote user can spoof protected tags, leading a victim to download malicious code.
10) Input validation error (CVE-ID: CVE-2023-0921)
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 within the Issue description. A remote user can pass specially crafted input to the application and perform a denial of service (DoS) attack.
11) Improper access control (CVE-ID: CVE-2023-1204)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote user can use an unverified email as a public email and commit email by sending a specifically crafted request on user update settings.
12) Open redirect (CVE-ID: CVE-2023-0508)
The vulnerability allows a remote attacker to redirect victims to arbitrary URL.
The vulnerability exists due to HTTP response splitting in the NPM package API. 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.
13) Information disclosure (CVE-ID: CVE-2023-1825)
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 exporting a project. A remote user can gain unauthorized access to sensitive information on the system.
14) Observable discrepancy (CVE-ID: CVE-2023-2013)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to Observable discrepancy. A remote user can abuse a discrepancy between the Web application display and the git command line interface to social engineer victims into cloning non-trusted code.
Remediation
Install update from vendor's website.