GitLab Community Edition 10.3 CI Runner path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in GitLab Community Edition 10.3. This affects an unknown part of the component CI Runner. This manipulation causes path traversal. This vulnerability appears as CVE-2017-0918. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in GitLab Community Edition 10.3 (Bug Tracking Software) and classified as critical. Affected by this vulnerability is an unknown code of the component CI Runner. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Gitlab Community Edition version 10.3 is vulnerable to a path traversal issue in the GitLab CI runner component resulting in remote code execution.

The bug was discovered 01/16/2018. The weakness was presented 03/21/2018 (Website). The advisory is shared at about.gitlab.com. This vulnerability is known as CVE-2017-0918 since 11/30/2016. The exploitation appears to be easy. The attack can be launched remotely. A single authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 61 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 108422 (Debian DSA-4145-1 : 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 176326 (Debian Security Update for gitlab (DSA 4145-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (108422). See VDB-114849, VDB-114850, VDB-114851 and VDB-114852 for similar entries. 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: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
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: 108422
Nessus Name: Debian DSA-4145-1 : gitlab - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800272
OpenVAS Name: Debian Security Advisory DSA 4145-1 (gitlab - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/30/2016 🔍
01/16/2018 +412 days 🔍
03/18/2018 +61 days 🔍
03/19/2018 +1 days 🔍
03/21/2018 +2 days 🔍
03/21/2018 +0 days 🔍
03/22/2018 +1 days 🔍
01/15/2020 +664 days 🔍

Sourcesinfo

Vendor: gitlab.com

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

CVE: CVE-2017-0918 (🔍)
GCVE (CVE): GCVE-0-2017-0918
GCVE (VulDB): GCVE-100-114853

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 03/22/2018 07:55
Updated: 01/15/2020 14:39
Changes: 03/22/2018 07:55 (72), 01/15/2020 14:39 (4)
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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