Multiple vulnerabilities in GitLab Enterprise Edition

1) Cleartext storage of sensitive information

EUVDB-ID: #VU25101

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7976

CWE-ID: CWE-312 - Cleartext Storage of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the target system.

The vulnerability exists due to the Grafana token is displayed in plaintext on the settings page. A remote attacker can obtain sensitive information on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 12.4.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Incorrect default permissions

EUVDB-ID: #VU25100

Risk: Low

CVSSv3.1: 2.4 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7977

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a emote attacker to escalate privileges on the system.

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application. A remote developer of a project can change the pipeline status of a protected branch to any value.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 7.12.0 - 12.7.1

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Information disclosure

EUVDB-ID: #VU25099

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7974

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to the last pipeline status is visible via the commits API. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 10.1.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Input validation error

EUVDB-ID: #VU25098

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7978

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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 AsciiDoc. A remote attacker can use certain payloads and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 12.6.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Information disclosure

EUVDB-ID: #VU25097

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7969

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to Unexpired Todos could be leveraged to disclose (potentially confidential) issues and merge requests. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 8.0.0 - 12.7.3

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Information disclosure

EUVDB-ID: #VU25043

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7979

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to GraphQL queries may expose under certain conditions private project names. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 8.9.0 - 12.7.3

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Improper access control

EUVDB-ID: #VU25040

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7968

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

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

The vulnerability exists due to the authorization checks were not being applied in some cases for public repositories with merge request visibility set to members only. A remote attacker can disclose the Forked Private Project Source Code.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 7.12.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU25039

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7972

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to a certain API endpoint can be used to bypass email verification requirements. A remote attacker can view contents of files and directories or modify them.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 12.0.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU25038

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7967

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to an insecure permissions issue. A remote attacker can view activity counts of issues and merge requests.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 12.0.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Cross-site scripting

EUVDB-ID: #VU25037

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7971

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

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 create group functionality. 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 11.0.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU25036

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-6833

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP request smuggling attack.

The vulnerability exists due to a particular header can be used to override restrictions. A remote attacker can send a specially crafted HTTP request and perform HTTP request smuggling attack, resulting in the GitLab Workhorse disclosing packages and files in the /tpm directory.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 11.3.0 - 12.7.3

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU25033

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-8114

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the permissions are not being validated in the ProjectExportWorker for the user scheduling exports. A remote attacker can gain elevated privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 8.0.1 - 12.7.2

External links

http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/
http://about.gitlab.com/releases/categories/releases/
http://gitlab.com/gitlab-org/gitlab/issues/37468

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Path traversal

EUVDB-ID: #VU25031

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-7966

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the dependency proxy. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 11.11.0 - 12.7.2

External links

http://about.gitlab.com/blog/categories/releases/
http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Resource exhaustion

EUVDB-ID: #VU25104

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-16892

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the data about the uncompressed size can be spoofed. A remote attacker can send a specially crafted ZIP file, bypass application checks on ZIP entry sizes, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

GitLab Enterprise Edition: 8.3.0 - 12.7.3

External links

http://about.gitlab.com/releases/2020/01/30/security-release-gitlab-12-7-4-released/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.