Information disclosure in GitLab



Published: 2020-07-07
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-15525
CWE-ID CWE-200
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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Gitlab Community Edition
Universal components / Libraries / Software for developers

GitLab Enterprise Edition
Universal components / Libraries / Software for developers

Vendor GitLab, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU29554

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-15525

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

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

The Maven package upload endpoint could be used to override restrictions and result in the GitLab Workhorse disclosing the existence and contents of files in the /tmp directory. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 11.3 - 13.1.2

GitLab Enterprise Edition: 11.3.0 - 13.1.2


CPE2.3 External links

http://about.gitlab.com/releases/2020/07/06/critical-security-release-gitlab-13-1-3-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. However, proof of concept for this vulnerability is available.



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