VDB-111378 · CVE-2018-0803 · BID 102384

Microsoft Edge injection

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.
3.3	$5k-$25k	0.00

A vulnerability, which was classified as problematic, was found in Microsoft Edge (Web Browser) (affected version unknown). Affected is an unknown functionality. The manipulation with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality. CVE summarizes:

Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to access information from one domain and inject it into another domain, due to how Microsoft Edge enforces cross-domain policies, aka "Microsoft Edge Elevation of Privilege Vulnerability".

The bug was discovered 01/03/2018. The weakness was presented 01/03/2018 by Joshua as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. This vulnerability is traded as CVE-2018-0803 since 12/01/2017. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/28/2021). This vulnerability is assigned to T1055 by the MITRE ATT&CK project. The advisory points out:

An elevation of privilege vulnerability exists when Microsoft Edge does not properly enforce cross-domain policies, which could allow an attacker to access information from one domain and inject it into another domain.

The vulnerability scanner Nessus provides a plugin with the ID 105547 (KB4056888: Windows 10 Version 1511 January 2018 Security Update (Meltdown)(Spectre)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91425 (Microsoft Edge Security Update for January 2018 (ADV180002) (Spectre/Meltdown)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105547). See 111349, 111351, 111352 and 111353 for similar entries.

Productinfo

Type

Web Browser

Vendor

Microsoft

Name

Edge

License

commercial

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

Vendor Base Score (Microsoft): 3.1
Vendor Vector (Microsoft): 🔍

NVD Base Score: 4.2
NVD Vector: 🔍

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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707
ATT&CK: T1055

Local: No
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

Nessus ID: 105547
Nessus Name: KB4056888: Windows 10 Version 1511 January 2018 Security Update (Meltdown)(Spectre)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 870324
OpenVAS Name: Microsoft Windows Multiple Vulnerabilities (KB4056892)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

12/01/2017 🔍
01/03/2018 +33 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/03/2018 +0 days 🔍
01/04/2018 +1 days 🔍
01/04/2018 +0 days 🔍
01/05/2018 +1 days 🔍
01/28/2021 +1119 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Researcher: Joshua Graham with TSS. (Joshua)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-0803 (🔍)
OVAL: 🔍

SecurityTracker: 1040100
SecurityFocus: 102384 - Microsoft Edge CVE-2018-0803 Remote Privilege Escalation Vulnerability

See also: 🔍

Entryinfo

Created: 01/05/2018 10:07
Updated: 01/28/2021 16:49
Changes: 01/05/2018 10:07 (86), 12/28/2019 18:02 (4), 01/28/2021 16:46 (2), 01/28/2021 16:49 (1)
Complete: 🔍