SB2020052901 - Multiple vulnerabilities in GitLab
Published: May 29, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 17 vulnerabilities.
1) Improper Authorization (CVE-ID: N/A)
The vulnerability allows a remote attacker to bypass email verification process.
The vulnerability exists due to a unspecified error. A remote attacker can bypass the email verification process.
2) Improper Authorization (CVE-ID: N/A)
The vulnerability allows a remote user to update data of other users.
The vulnerability exists due to insecure authorization check that allows a remote authenticated user to update permissions of other users' deploy keys under certain conditions.
3) Information disclosure (CVE-ID: N/A)
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due Amazon EKS Credentials are disclosed to other administrators of an instance through HTML source code.
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 the Static Site Editor. 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) Client-side code injection (CVE-ID: N/A)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote attacker can send a specially crafted Mermaid payload and perform PUT requests on behalf of other users when clicking on a link.
6) Resource exhaustion (CVE-ID: N/A)
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 on Custom Dashboards. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
7) 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 on the Metrics Dashboard. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary JavaScript 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) Information disclosure (CVE-ID: N/A)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to application may expose presence of files on the system. A remote non-authenticated attacker can send a specially crafted request and confirm the existence of files hosted on object storage services, without disclosing their contents.
9) Improper Authorization (CVE-ID: N/A)
The vulnerability allows a remote attacker to bypass email verification process.
The vulnerability exists due to the way Gitlab processes email verification within the OAuth flow. A remote attacker can bypass email verification process during registration.
10) Information disclosure (CVE-ID: N/A)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the Kubernetes cluster token is visible to other group maintainers.
11) 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 passed to repository files API. 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.
12) Improper access control (CVE-ID: N/A)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote guest user can create a fork relation on restricted public projects.
13) Permissions, Privileges, and Access Controls (CVE-ID: N/A)
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to the way application deletes mirror projects. A remote attacker can impersonate owners of deleted projects.
Please note that the edit project API endpoint has been restricted and only admin users have the ability to set the mirror_user_id
14) Improper Authorization (CVE-ID: N/A)
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exits due to an error in the group sign-up registration process. A user with an unverified address within the restricted domain could request access to domain restricted groups.
15) Improper access control (CVE-ID: N/A)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to unspecified issue, related to misconfigured cloud environments.
16) Improper Authorization (CVE-ID: N/A)
The vulnerability allows a remote attacker to bypass email verification procedure.
The vulnerability exists due to absent notification email verification procedure. A remote user can setup notification email without email verification.
17) Resource exhaustion (CVE-ID: N/A)
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 in Workhorse. A remote attacker can trigger resource exhaustion by uploading malicious artifacts and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.