VDB-122987 · CVE-2018-15122 · Qualys 371224

Progress Telerik JustAssembly/JustDecompile .NET Object input validation

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.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Progress Telerik JustAssembly and JustDecompile. The impacted element is an unknown function of the component .NET Object Handler. The manipulation leads to input validation. This vulnerability is uniquely identified as CVE-2018-15122. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Progress Telerik JustAssembly and JustDecompile (the affected version is unknown). This issue affects an unknown code of the component .NET Object Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue found in Progress Telerik JustAssembly through 2018.1.323.2 and JustDecompile through 2018.2.605.0 makes it possible to execute code by decompiling a compiled .NET object (such as DLL or EXE) with an embedded resource file by clicking on the resource.

The bug was discovered 08/06/2018. The weakness was disclosed 08/16/2018 (Website). It is possible to read the advisory at docs.telerik.com. The identification of this vulnerability is CVE-2018-15122 since 08/06/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371224 (Telerik JustAssembly and JustDecompile Decompiling .NET Object Code Execution Vulnerability).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Progress Telerik

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/06/2018 🔍
08/06/2018 +0 days 🔍
08/16/2018 +9 days 🔍
08/16/2018 +0 days 🔍
08/17/2018 +1 days 🔍
03/16/2020 +577 days 🔍

Sourcesinfo

Advisory: docs.telerik.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-15122 (🔍)
GCVE (CVE): GCVE-0-2018-15122
GCVE (VulDB): GCVE-100-122987

Entryinfo

Created: 08/17/2018 06:45
Updated: 03/16/2020 11:17
Changes: 08/17/2018 06:45 (57), 03/16/2020 11:17 (2)
Complete: 🔍
Cache ID: 216:D1C:103