HMI UCanCode Write Methods File privileges management

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8	$0-$5k	0.19

Summaryinfo

A vulnerability identified as critical has been detected in HMI UCanCode. The impacted element is an unknown function of the component Write Methods. Performing a manipulation results in privileges management (File). Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as critical, was found in HMI UCanCode (SCADA Software) (affected version not known). This affects some unknown functionality of the component Write Methods. The manipulation with an unknown input leads to a privileges management vulnerability (File). CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 11/23/2016 by shinnai as UCanCode multiple vulnerabilities as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

A public exploit has been developed by shinnai and been published immediately after the advisory. The exploit is shared for download at seclists.org. It is declared as proof-of-concept. The code used by the exploit is:

<html>
<object classid="clsid:B6A3BF2C-F770-4182-BE7F-103BF2C76826" id="test"></object>
  <script language = "vbscript">
   test.SaveTemplateToFile buff,C:\Windows\_system.ini
  </script>
</html>

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-93835, VDB-93836, VDB-93839 and VDB-93838 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

SCADA Software

Vendor

Name

UCanCode

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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: 🔍

Exploitinginfo

Name: File
Class: Privileges management / File
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: shinnai
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Timelineinfo

11/23/2016 🔍
11/23/2016 +0 days 🔍
11/27/2016 +4 days 🔍
07/24/2019 +969 days 🔍

Sourcesinfo

Advisory: UCanCode multiple vulnerabilities
Researcher: shinnai
Status: Not defined

GCVE (VulDB): GCVE-100-93837
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 11/27/2016 10:19
Updated: 07/24/2019 17:40
Changes: 11/27/2016 10:19 (45), 07/24/2019 17:40 (2)
Complete: 🔍
Cache ID: 216:336:103