GitHub Git LFS up to 2.1.0 Config File Hostname input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in GitHub Git LFS up to 2.1.0 (Bug Tracking Software). Affected by this issue is an unknown functionality of the component Config File. The manipulation as part of a Hostname leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-20. Impacted is confidentiality, integrity, and availability.

The bug was discovered 12/21/2017. The weakness was disclosed 12/21/2017 by ZhangTianqi @ Tophant (Website). The advisory is shared for download at This vulnerability is handled as CVE-2017-17831 since 12/21/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 106870 (Atlassian SourceTree < Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370786 (Sourcetree for macOS and Windows Git LFS Arbitrary Command Execution Vulnerability).

Upgrading to version 2.1.1 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 102926) and Tenable (106870). The entries 110335, 112474 and 112475 are pretty similar.





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.7

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍



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

NVD Base Score: 🔍


Class: Privilege escalation
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 106870
Nessus Name: Atlassian SourceTree < Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍


Recommended: Upgrade
Status: 🔍

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

Upgrade: Git LFS 2.1.1


12/21/2017 🔍
12/21/2017 +0 days 🔍
12/21/2017 +0 days 🔍
12/21/2017 +0 days 🔍
12/21/2017 +0 days 🔍
01/24/2018 +33 days 🔍
01/24/2018 +0 days 🔍
02/16/2018 +23 days 🔍
01/27/2021 +1076 days 🔍


Researcher: ZhangTianqi @ Tophant
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-17831 (🔍)
SecurityFocus: 102926

See also: 🔍


Created: 12/21/2017 02:07 PM
Updated: 01/27/2021 05:32 PM
Changes: (4) advisory_person_name source_securityfocus_date source_securityfocus_class vulnerability_cvss2_nvd_basescore
Complete: 🔍


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