GSTN Offline Utility Tool up to 1.1 Permission winstart-server.vbs GSTN_offline_tool access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in GSTN Offline Utility Tool up to 1.1. This impacts the function GSTN_offline_tool of the file winstart-server.vbs of the component Permission. Such manipulation leads to access control. This vulnerability is documented as CVE-2017-13779. The attack needs to be performed locally. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in GSTN Offline Utility Tool up to 1.1. It has been rated as problematic. Affected by this issue is the function GSTN_offline_tool of the file winstart-server.vbs of the component Permission. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

GSTN_offline_tool in India Goods and Services Tax Network (GSTN) Offline Utility tool before 1.2 executes winstart-server.vbs from the "C:\GST Offline Tool" directory, which has insecure permissions. This allows local users to gain privileges by replacing winstart-server.vbs with arbitrary VBScript code. For example, a local user could create VBScript code for a TCP reverse shell, and use that later for Remote Command Execution.

The bug was discovered 09/13/2017. The weakness was released 09/14/2017 (Website). The advisory is shared for download at tink2hack.blogspot.in. This vulnerability is handled as CVE-2017-13779 since 08/30/2017. The attack needs to be approached locally. A simple authentication is necessary for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Offline Utility Tool 1.2

Timelineinfo

08/30/2017 🔍
09/13/2017 +14 days 🔍
09/14/2017 +1 days 🔍
09/14/2017 +0 days 🔍
09/14/2017 +0 days 🔍
11/16/2019 +793 days 🔍

Sourcesinfo

Advisory: tink2hack.blogspot.in
Status: Not defined

CVE: CVE-2017-13779 (🔍)
GCVE (CVE): GCVE-0-2017-13779
GCVE (VulDB): GCVE-100-106676

Entryinfo

Created: 09/14/2017 17:07
Updated: 11/16/2019 15:43
Changes: 09/14/2017 17:07 (60), 11/16/2019 15:43 (1)
Complete: 🔍
Cache ID: 216::103

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