CVE-2018-18913

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Opera before 57.0.3098.106 is vulnerable to a DLL Search Order hijacking attack where an attacker can send a ZIP archive composed of an HTML page along with a malicious DLL to the target. Once the document is opened, it may allow the attacker to take full control of the system from any location within the system. The issue lies in the loading of the shcore.dll and dcomp.dll files: these files are being searched for by the program in the same system-wide directory where the HTML file is executed.

Opera, en versiones anteriores a la 57.0.3098.106, es vulnerable a un ataque de secuestro de orden de búsqueda de DLL donde un atacante puede enviar un archivo ZIP compuesto por una página HTML junto con un DLL malicioso al objetivo. Una vez se ha abierto el documento, podría permitir que el atacante obtenga el control total del sistema desde cualquier ubicación en éste. El problema radica en la carga de los archivos shcore.dll y dcomp.dll: el programa busca estos archivos en el mismo directorio del sistema en el que se ejecuta el archivo HTML.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-11-02 CVE Reserved
2019-03-21 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-426: Untrusted Search Path

CAPEC

References (2)

URL	Tag	Source
https://lucideustech.blogspot.com/2019/02/opera-search-order-hijacking-cve-2018-18913.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://blogs.opera.com/desktop/changelog-for-57	2019-09-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opera Search vendor "Opera"	Opera Browser Search vendor "Opera" for product "Opera Browser"	< 57.0.3098.106 Search vendor "Opera" for product "Opera Browser" and version " < 57.0.3098.106"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows 7 Search vendor "Microsoft" for product "Windows 7"	-	-	Safe