SB2020100507 - Multiple vulnerabilities in GitLab Community Edition (CE) and Enterprise Edition (EE)
Published: October 5, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 secuirty vulnerabilities.
1) Unprotected storage of credentials (CVE-ID: N/A)
The vulnerability allows a remote attacker to gain access to other users' credentials.
The vulnerability exists due to application stored credentials in plain text in a configuration file on the system in Redis. A remote attacker can view contents of the configuration file and gain access to passwords for 3rd party integration.
2) Cross-site scripting (CVE-ID: N/A)
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.
3) Information disclosure (CVE-ID: N/A)
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 view private custom project template.
4) Cross-site scripting (CVE-ID: N/A)
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 SVG image preview. 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) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to insufficient rate-limiting at re-sending confirmatil email. A remote atttacker can compromise the target system.
6) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to compromise the system.
The vulnerability exists due to an improper type check in GraphQL. A remote user with developer role can perform unauthorised actions.
7) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to compromise the system.
The vulnerability exists due to to-dos are not redacted when membership changes. A remote attacker compromise the target syste.
8) Command Injection (CVE-ID: N/A)
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation.on windows runner host. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
uccessful exploitation of this vulnerability may result in complete compromise of vulnerable system.
9) Input validation error (CVE-ID: CVE-2020-13333)
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 in release api. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
10) Improper access control (CVE-ID: CVE-2020-13332)
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 access projects with an expired access date.
11) Improper access control (CVE-ID: CVE-2020-13335)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to insufficient check before account deletion. A remote attacker can bypass implemented security restrictions and delete an account while being the owner of a group.
12) Improper Authorization (CVE-ID: CVE-2020-13334)
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to improper authorization. A remote user can change the confidentiality attribute of issue via mutation GraphQL query.
13) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2020-13327)
The vulnerability allows a remote attacker to perform a man-in-the-middle (MitM) attack.
The vulnerability exists due to Insecure Runner Configuration in Kubernetes Environments. A remote attacker can perform perform a man-in-the-middle attack on the target system.
Remediation
Install update from vendor's website.