GitLab Community Edition/Enterprise Edition up to 10.1.5/10.2.5/10.3.3 CreationsController Request improper authorization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in GitLab Community Edition and Enterprise Edition up to 10.1.5/10.2.5/10.3.3. Affected by this issue is the function Projects::MergeRequests::CreationsController. Performing a manipulation as part of Request results in improper authorization. This vulnerability is known as CVE-2017-0920. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in GitLab Community Edition and Enterprise Edition up to 10.1.5/10.2.5/10.3.3 (Bug Tracking Software). This affects the function Projects::MergeRequests::CreationsController. The manipulation as part of a Request leads to a improper authorization vulnerability. CWE is classifying the issue as CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality. The summary by CVE is:

GitLab Community and Enterprise Editions before 10.1.6, 10.2.6, and 10.3.4 are vulnerable to an authorization bypass issue in the Projects::MergeRequests::CreationsController component resulting in an attacker to see every project name and their respective namespace on a GitLab instance.

The bug was discovered 01/16/2018. The weakness was published 03/22/2018 (Website). The advisory is shared at about.gitlab.com. This vulnerability is uniquely identified as CVE-2017-0920 since 11/30/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 65 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 109967 (Debian DSA-4206-1 : gitlab - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176393 (Debian Security Update for gitlab (DSA 4206-2)).

Upgrading to version 10.1.6, 10.2.6 or 10.3.4 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (109967). Similar entries are available at VDB-114849, VDB-114850, VDB-114851 and VDB-114852. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB 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: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 109967
Nessus Name: Debian DSA-4206-1 : gitlab - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 57980
OpenVAS Name: Debian Security Advisory DSA 4206-1 (gitlab - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Community Edition/Enterprise Edition 10.1.6/10.2.6/10.3.4

Timelineinfo

11/30/2016 🔍
01/16/2018 +412 days 🔍
03/22/2018 +65 days 🔍
03/22/2018 +0 days 🔍
03/23/2018 +1 days 🔍
05/21/2018 +59 days 🔍
05/23/2018 +2 days 🔍
01/15/2020 +602 days 🔍

Sourcesinfo

Vendor: gitlab.com

Advisory: about.gitlab.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-0920 (🔍)
GCVE (CVE): GCVE-0-2017-0920
GCVE (VulDB): GCVE-100-114885

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 03/23/2018 09:56
Updated: 01/15/2020 17:23
Changes: 03/23/2018 09:56 (78), 01/15/2020 17:23 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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