CVE-2018-6212 : On D-Link DIR-620 devices with a certain customized (by ISP) variant of firmware

On D-Link DIR-620 devices with a certain customized (by ISP) variant of firmware 1.0.3, 1.0.37, 1.3.1, 1.3.3, 1.3.7, 1.4.0, and 2.0.22, a reflected Cross-Site Scripting (XSS) attack is possible as a result of missed filtration for special characters in the "Search" field and incorrect processing of the XMLHttpRequest object.

Published 2018-06-20 16:29:00

Updated 2023-04-26 18:55:31

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2018-6212

D-link » Dir-620 Firmware » Version: 1.3.3
cpe:2.3:o:d-link:dir-620_firmware:1.3.3:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-620 » Version: N/A
D-link » Dir-620 Firmware » Version: 1.3.7
cpe:2.3:o:d-link:dir-620_firmware:1.3.7:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-620 » Version: N/A
D-link » Dir-620 Firmware » Version: 1.4.0
cpe:2.3:o:d-link:dir-620_firmware:1.4.0:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-620 » Version: N/A
D-link » Dir-620 Firmware » Version: 2.0.22
cpe:2.3:o:d-link:dir-620_firmware:2.0.22:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-620 » Version: N/A
D-link » Dir-620 Firmware » Version: 1.0.37
cpe:2.3:o:d-link:dir-620_firmware:1.0.37:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-620 » Version: N/A
D-link » Dir-620 Firmware » Version: 1.0.3
cpe:2.3:o:d-link:dir-620_firmware:1.0.3:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-620 » Version: N/A
D-link » Dir-620 Firmware » Version: 1.3.1
cpe:2.3:o:d-link:dir-620_firmware:1.3.1:*:*:*:*:*:*:*
Matching versions
When used together with: Dlink » Dir-620 » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2018-6212

EPSS FAQ

0.12%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-6212

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2018-6212

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-6212

http://www.securitynewspaper.com/2018/05/25/d-link-dir-620-routers-critical-vulnerabilities/

D-Link DIR-620 Routers with Critical Vulnerabilities
Third Party Advisory

CVEs referencing this url
https://www.bleepingcomputer.com/news/security/backdoor-account-found-in-d-link-dir-620-routers/

Backdoor Account Found in D-Link DIR-620 Routers
Third Party Advisory

CVEs referencing this url
https://securelist.com/backdoors-in-d-links-backyard/85530/

Backdoors in D-Link’s backyard | Securelist
Exploit;Third Party Advisory

CVEs referencing this url
https://securityaffairs.co/wordpress/72839/hacking/d-link-dir-620-flaws.html

Kaspersky discovered a backdoor account and other issues in D-Link DIR-620 RoutersSecurity Affairs
Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2018-6212

Products affected by CVE-2018-6212

Exploit prediction scoring system (EPSS) score for CVE-2018-6212

CVSS scores for CVE-2018-6212

CWE ids for CVE-2018-6212

References for CVE-2018-6212