GitLab prior 16.4.3/16.5.3/16.6.1 Composer Package access control
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.2 | $0-$5k | 0.00 |
Summary
A vulnerability was found in GitLab and classified as critical. Affected is an unknown function of the component Composer Package Handler. Executing a manipulation can lead to access control. This vulnerability is handled as CVE-2023-3964. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.
Details
A vulnerability has been found in GitLab (Bug Tracking Software) and classified as critical. This vulnerability affects an unknown code of the component Composer Package Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality. CVE summarizes:
An issue has been discovered in GitLab affecting all versions starting from 13.2 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for users to access composer packages on public projects that have package registry disabled in the project settings.
The weakness was released 12/01/2023. The advisory is available at gitlab.com. This vulnerability was named CVE-2023-3964 since 07/26/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.
Upgrading to version 16.4.3, 16.5.3 or 16.6.1 eliminates this vulnerability.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-44589). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.3VulDB Meta Temp Score: 4.2
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 4.3
NVD Vector: 🔍
CNA Base Score: 4.3
CNA Vector (GitLab Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Access controlCWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: GitLab 16.4.3/16.5.3/16.6.1
Timeline
07/26/2023 🔍12/01/2023 🔍
12/01/2023 🔍
06/03/2025 🔍
Sources
Advisory: 41985Status: Confirmed
CVE: CVE-2023-3964 (🔍)
GCVE (CVE): GCVE-0-2023-3964
GCVE (VulDB): GCVE-100-246586
EUVD: 🔍
Entry
Created: 12/01/2023 08:18Updated: 06/03/2025 05:15
Changes: 12/01/2023 08:18 (48), 12/21/2023 16:37 (1), 12/21/2023 16:45 (1), 10/03/2024 13:55 (25), 06/03/2025 05:15 (1)
Complete: 🔍
Cache ID: 216::103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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